N.Y.S. 2008 Processing Sweet Corn Variety Replicated and ... · Prelude 1,033 67 1,548 94 74.9 na...

N.Y.S. 2008 Processing Sweet Corn Variety Replicated and Observation

(su and supersweet Types) Trial Summary

James Ballerstein, Research Support Specialist, Horticultural Sciences

Stephen Reiners, Associate Professor, Horticultural Sciences

New York State Agricultural Experiment Station — Cornell University, Geneva, New York

The trial was located at the Vegetable Research Farm in Geneva, NY. The objective was to

harvest su gene type at 72-75% moisture and the supersweet type at 75-78% moisture. Plot size

for the replicated entries was two rows, 40 feet in length, and 30 inches between the rows. Four

replications of early to midseason su type cultivars (10) were planted on May 14. These early su

cultivars were planted again along with main season su cultivars on June 2. A single planting of

the supersweet type (four replications) was planted on June 16. Yield data were taken from a

single harvest of 20-foot sections of the two rows of each plot. A subsample of 15 ears was used

for ear data.

Observation plot size was two rows, 40 feet in length, and 30 inches between the rows. There

were two plots of each cultivar at each planting. Planting dates were the same as the replicated

plots. Yield data were taken from a single harvest of a 20-foot section of a single row. A

subsample of 15 ears was used for ear data.

All plantings were sowed with a Monosem vacuum planter with double disc openers. The

fertilizer used was a 10-5-10 (with Mn and Zn) at a rate of 350 lbs. per acre. Fertilizer was

banded two inches below and two inches to the side of the seeds at planting. Lumax (at the

labeled rate) was applied post emergence for weed control. The desired population was 20,900

plants per acre (10 inches in row spacing). One cultivation was done and 250 pounds of 27-0-0

per acre were sidedressed. The varieties Bonus and GH2042 from Syngenta Seeds were used as

standards for the su type. Overland from Syngenta Seeds was the supersweet standard.

May was cool and dry. Rainfall was below normal until July, when rains began. The third

replication of the main su planting had delayed emergence due to rougher soil. The supersweet

planting emerged uniformly. Heat units over the growing season were about normal.

Minor symptoms of the bacterial disease Stewart’s wilt became evident midsummer. Common

rust infection was minimal until late in the season.

We wish to thank the NYS Vegetable Research Association, Ontario Processing Vegetable

Growers, and cooperating seed companies for their financial support of this project. We also

wish to thank Mr. Michael Gardinier and Mr. Bob Deemer of FarmFreshFirst for their assistance

in planning the trials. Special thanks to Mrs. Wilma Kean, Mr. Russ Harris, Matt Reiners, Josh

Decker, Nick Schessl, Ms. Chelsea DeBoldt, and Ms. Sarah Huelik for their assistance in day-to-

day operations. Please address any questions to:

Jim Ballerstein

NYSAES

630 W. North St.

Hedrick Hall

Geneva, NY 14456-0462

(315) 787-2223

[email protected]

Table 1. Cultivar list.

Su Type

Cultivar Seed Source

GH 2042 Rogers

Prelude Crites M

EX5414 Seminis

GH2171 Rogers

GH 4927 Rogers

HMX 2390 HM

UY3435 Crites M

C162 General Mills

C151 General Mills

C174 General Mills

Rocker Rogers

GH6462 Rogers

GH6377 Rogers

Bonus Rogers

EX5821 Seminis

EX5807 Seminis

HMX 7387 HM

Tamarack Crookham

Captain Crites M

C194 General Mills

HMX7388 HM

C2_35 Crookham

C6-205 Crookham

Supersweet Type

Cultivar Seed Source

Overland Rogers

Protégé Rogers

GSS 1477 Rogers

Magnum II Rogers

GSS6550 Rogers

GSS7051 Rogers

HMX 7389S HM

Fortitude (3-99) Crookham

HY1089 Crites M

Galaxy Crites M

HY1481 Crites M

HB2642 Crites M

HW2545 Crites M

Cshyp6-223 Crookham

ACX5008 A&C

ACX7132 A&C

C177 General Mills

C179 General Mills

C6-224 Crookham

C6-225 Crookham

C7-265 Crookham

C7-272 Crookham

C7-276 Crookham

ACX 5156 A&C

Rogers=Syngenta-Rogers Brand, Crites M.=Crites Moscow, Seminis=Seminis Vegetable Seeds- Processor Division,

HM=Harris Moran, Crookham=Crookham Co., A&C=Abbott and Cobb

Table 2. Maturity data for early su planting date, May 14.

Cultivar

Heat

Units to

Silk

(base 50)

Days

To

Silk

Heat

Units to

Harvest

(base 50)

Days to

Harvest

%

Moisture

At

Harvest

Seed

Source

Maturity

Ear

Height

(in.)

Plt.

Height

(in.)

C162 971 64 1,479 89 68.5 na 19 76

UY3435 982 65 1,510 91 71.6 na 22 73

C151 1,027 67 1,516 91 71.6 1800 18 76

GH 2042 984 65 1,530 92 72.3 75 20 75

C174 1,033 67 1,537 93 69.6 1780 21 77

EX 5414 992 66 1,543 93 72.4 74 22 79

Prelude 1,033 67 1,548 94 74.9 na 20 77

GH 4927 1,005 66 1,563 94 71.5 75 21 73

GH 2171 1,013 67 1,593 96 73.0 74 20 78

HMX 2390 1,099 70 1,626 98 74.0 78 23 79

The above data are an average of four replications. This results in variable heat units to harvest that do not match to

others with same days to harvest.

Ear Height and Plant Height are included in this table because I did not have other plant characteristics for this

planting.

Heat Units to Silk (base 50): Growing degree day units base 50°F. The accumulation of degree-day units from

planting until silk.

Days to Silk: The number of days from planting until plots had 50% of the plants showing silks.

Heat Units to Harvest (base 50): Growing degree day units base 50°F. The accumulation of degree-day units from

planting until harvest.

Days to Harvest: The number of days from planting until harvest.

% Moisture at Harvest: Percent moisture of the harvest sample. A slurry of cut kernels was dried to determine the

percent moisture.

Seed Source Maturity: Listed in either heat units or days to harvest. Information provided by the seed company.

Table 3. Ear and kernel ratings for early su planting date, May 14.

Cultivar

Ear

Uniformity

Rating

Ear Shape

Rating

Oval/

Round

Rating

Kernel

Rowing

Rating

Kernel

Size

Rating

Kernel

Depth

(mm)

Kernel

Depth

Rating

Flavor

Rating

Pericarp

Rating

Market

Use

Rating

C162 G-VG CY R-SL O ST-SL I M-L 11 SH OK-G OK B

UY3435 G-VG CY R ST-SL I M-L 12 M OK OK B

C151 VG CY-SL T R-SL O ST M-L 11 SH OK OK-T B

GH 2042 VG-E CY R-SL O ST-SL I M 13 M-D OK-G OK B

C174 VG SL T R ST M-L 12 SH OK-G OK B

EX 5414 VG CY R-SL O ST-SL I M-L 13 D OK-G S-OK B

Prelude VG CY-SL T R ST-SL I S-M 11 M OK-G OK B

GH 4927 VG CY R-SL O ST-SL I M 12 M-D OK-G OK-T B

GH 2171 G-VG CY R ST M-L 12 M-D OK OK-T CUT

HMX 2390 G-VG CY-SL T R-SL O ST-SL I S-M 11 M OK-G T B

All data and ratings are an average of four replications.

Ear Uniformity Rating: Ex=excellent (entire sample was the same length, diameter and uniform tip fill), VG=very good, G=good, F=fair, P=poor.

Ear Shape Rating: CY=cylindrical, Sl T=slightly tapered, T=tapered.

Oval/Round Rating: R=round, Sl O=slightly oval, O=oval.

Kernel Rowing Rating: The straightness of the rows of kernels. St=straight, SL I=slightly irregular, IRR=quite irregular.

Kernel Size Rating: S=small, M=medium, L=large.

Kernel Depth (mm): The measurement of how deep the kernel was in millimeters (determined from breaking five ears in two and measuring the kernel depth.

Kernel Depth Rating: S=shallow, M=moderate, D=deep.

Flavor Rating: Bl=Blah, OK=acceptable, Good=better than acceptable, SW=sweet.

Pericarp Rating: S=soft, OK=acceptable, T=tough.

Market Use Rating: Cut=cut kernel, Cob=cobbette, Both=could be used for either.

Table 4. Ear and yield data for early su planting, May 14.

Cultivar

Husk

Ext.

(in)

Ear

Length

(in)

Ear

Dia.

(in)

Kernel

Row

Range

Unfilled

Tip

(in)

Weight

per

Unhusked

Ear

(lbs)

Sample

Weight

per

Unhusked

Ear

(lbs)

Sample

Husked

Ear

Weight

(lbs)

Sample

Kernel

Weight

per Ear

(lbs)

Plants

Per

Acre

(1,000 )

Ears

Per

Plant

%

Moisture

Tons

Per

Acre

%

Recovery

Overall

Ear

Rating

C162 1.2 8.5 2.0 12 20 0.5 0.88 0.90 0.66 0.37 17.4 1.05 68.5 8.0 41 3.4

UY3435 1.2 8.0 2.0 14-20 0.2 0.85 0.90 0.68 0.49 17.2 1.10 71.6 7.9 54 3.7

C151 0.6 8.4 1.9 12 20 0.5 0.84 0.91 0.66 0.40 17.2 1.04 71.6 7.4 44 3.8

GH 2042 0.8 8.1 2.0 14-20 0.1 1.06 0.96 0.70 0.43 19.6 1.01 72.3 10.5 45 4

C174 1.3 8.4 2.0 12 18 0.4 0.90 0.90 0.66 0.38 19.6 1.01 69.6 9.0 43 4.1

EX 5414 0.8 7.9 2.1 14-24 0.2 0.99 1.05 0.78 0.52 17.6 1.08 72.4 9.4 49 3.8

Prelude 1.6 7.5 2.0 16-22 0.0 0.83 0.86 0.61 0.37 17.4 1.10 74.9 7.9 43 3.6

GH 4927 0.1 8.1 2.0 14-20 0.1 0.98 0.96 0.69 0.46 18.5 1.13 71.5 10.0 47 3.7

GH 2171 0.2 7.6 2.1 16-22 0.5 0.91 0.94 0.73 0.47 18.5 1.01 73.0 8.4 50 3.3

HMX 2390 0.8 8.3 2.0 16-24 0.2 0.93 0.91 0.67 0.43 19.3 0.94 74.0 8.5 47 3.8

Husk Ext. (in.): The measurement (in inches) of the distance from the tip of the cob to where the husk opens. A negative measurement indicates exposed

kernels. Exposed kernels can make the ear more susceptible to insect or bird feeding.

Ear Length (in.): The measurement (in inches) of the husked ear butt to tip.

Ear Dia. (in.): The measurement (in inches) of the diameter of the middle of the ear.

Kernel Row Range: The range of the number of rows counted on the ear sample.

Unfilled Tip (in.): The measurement (in inches) of the tip of the ear that had not formed kernels.

Weight per Unhusked Ear (lbs): The weight (in pounds) of an unhusked ear. Determined by the total yield weight divided by total number of ears harvested.

Comparing weight per unhusked ear from total harvest to the sample unhusked weight per ear indicates how valid the sampling technique is.

Sample Weight per Unhusked Ear (lbs): The weight (in pounds) of an unhusked ear based on the sample 15 ears brought in from the field.

Sample Husked Ear Weight (lbs): The weight (in pounds) of a husked ear based on the sample.

Sample Kernel Weight per Ear (lbs): The weight (in pounds) of the kernels cut from the ear.

Plants per Acre (1,000): Plant population per acre of the harvested plot (multiply number in the column by 1,000). Harvest plot was two rows by 20 ft per

replication.

Ears per Plant: The number of ears harvested divided by the number of plants in the harvest area.

% Moisture: Percent moisture of the harvest sample. A slurry of cut kernels was dried to determine the percent moisture.

Tons per Acre: The extrapolated yield of the plot listed as tons per acre. Harvest plot was two rows by 20 ft per replication.

% Recovery: Sample kernel weight divided by sample unhusked ear weight.

Overall Ear Rating: 5=exceptional, 4=very good, 3=acceptable, 2=unacceptable, 1=very poor. This evaluation was made by considering ear uniformity, ear

size, tip fill, and kernel rowing.

Table 5. Maturity for main su planting date, June 2.

Cultivar Days To

Silk

Heat

Units

to Silk

(base

50)

Days to

Harvest

Heat

Units to

Harvest

% Moisture

at Harvest

Seed

Source

Maturity

C162 53 1,042 82 1,565 68.3 1,575

UY3435 53 1,046 83 1,586 68.4 na

C151 58 1,161 83 1,594 69.5 1,630

GH 2042 58 1,146 83 1,586 70.5 75

C174 59 1,180 84 1,604 70.3 1,720

EX5414 58 1,142 84 1,609 72.5 74

Prelude 61 1,218 84 1,599 71.9 na

GH4927 57 1,126 85 1,620 71.6 75

GH2171 58 1,148 85 1,633 71.3 74

HMX 2390 60 1,203 87 1,651 72.4 78

GH6377 62 1,239 89 1,689 71.3 82-83

C2-35 60 1,188 90 1,698 67.5 na

Rocker 64 1,274 90 1,693 69.6 85

Bonus 63 1,266 91 1,716 70.4 83

EX5821 63 1,249 91 1,713 71.8 82

HMX 7387 62 1,239 91 1,716 74.4 na

C6-205 63 1,260 91 1,704 69.8 na

GH6462 66 1,311 92 1,724 72.6 83

EX5807 63 1,253 92 1,718 71.9 82

Tamarack 64 1,279 92 1,718 72.4 84 (1,428)

Captain 64 1,274 93 1,736 74.0 na

C194 63 1,261 93 1,736 74.3 1,900

HMX7388 64 1,275 93 1,736 72.8 86







percent moisture.


Table 6. Ear and kernel ratings for main su planting date, June 2.

Cultivar Ear Unif.

Rating

Ear

Shape

Rating

Oval /

Round

Rating

Kernel

Rowing

Rating

Kernel

Size

Rating

Kernel

Depth

(mm)

Kernel

Depth

Rating

Flavor

Rating

Pericarp

Rating

Market

Use

Rating

C162 VG SL T R ST M-L 12 SH OK-G OK-T CUT

UY3435 VG CY R ST M 12 M OK T B

C151 G-VG CY R ST M 11 SH OK-G T B

GH 2042 VG CY R ST-SL IRR M 12 M OK OK B

C174 VG CY-SL T R ST M-L 11 SH OK-G OK CUT

EX5414 VG CY R ST M 11 M OK-G S-OK B

Prelude VG SL T R ST-SL IRR M 11 M G OK-T B

GH4927 VG CY R ST M 12 M OK OK B

GH2171 VG CY-SL T R ST-SL IRR M 11 M G OK-T B

HMX 2390 VG CY-SL T R ST-SL IRR S 12 M OK T B

GH6377 VG CY-SL T R ST S-M 12 M OK-G S-OK B

C2-35 VG SL T R ST M 11 M B-OK T CUT

Rocker G-VG CY R ST M 11 SH OK OK-T B

Bonus VG CY R ST S-M 12 SH-M B-OK T B

EX5821 VG CY R-SL O ST-SL IRR S-M 12 M-D B T B

HMX 7387 VG-E CY-SL T R ST M 12 M B-OK T B

C6-205 VG CY R ST S 12 SH-M OK OK B

GH6462 VG CY R ST M 11 M OK OK B

EX5807 VG CY R ST S 12 M B-OK OK-T B

Tamarack VG SL T R ST M 11 M B-OK T CUT

Captain VG CY R ST-SL IRR S 12 M OK S-OK B

Continued on next page

Table 6 (continued)

Cultivar Ear Unif.

Rating

Ear

Shape

Rating

Oval /

Round

Rating

Kernel

Rowing

Rating

Kernel

Size

Rating

Kernel

Depth

(mm)

Kernel

Depth

Rating

Flavor

Rating

Pericarp

Rating

Market

Use

Rating

C194 VG SL T-T R ST M 12 M B-OK OK-T CUT

HMX7388 VG CY R ST M 12 M B OK-T B


Ear Uniformity Rating: Ex=excellent (entire sample was the same length, diameter and uniform tip fill), VG=very good, G=good, F=fair, P=poor.



Kernel Rowing Rating: The straightness of the rows of kernels. St=straight, SL I=slightly irregular, IRR=quite irregular.


Kernel Depth (mm): The measurement of how deep the kernel was in millimeters (determined from breaking five ears in two and measuring the kernel depth.

Kernel Depth Rating: S=small, M=medium, L=large.




Table 7. Ear and yield data for main su planting date, June 2.

Cultivar

Husk

Ext.

(in.)

Ear

Length

(in.)

Ear

Dia.

(in.)

Kernel

Row

Range

Unfilled

Tip (in.)

Weight

per

Unhusked

Ear (lbs)

Sample

Weight

per

Unhusked

Ear (lbs)

Sample

Husked

Ear

Weight

(lbs)

Sample

Kernel

Weight

per Ear

(lbs)

Plants

per

Acre

(1,000)

Ears

per

Plant

%

Moisture

Tons

per

Acre

%

Recovery

Overall

Ear

Rating

C162 0.6 8.6 2.0 12 20 0.5 1.02 0.93 0.71 0.49 17.5 0.89 68.3 7.9 53 3.6

UY3435 1.2 7.8 2.0 14-20 0.3 0.86 0.85 0.67 0.45 19.2 0.92 68.4 7.7 52 3.6

C151 0.2 8.3 1.9 12 20 0.4 0.89 0.87 0.63 0.41 18.4 0.90 69.5 7.3 47 3.75

GH 2042 0.2 8.0 2.0 12 20 0.1 0.96 0.96 0.70 0.46 17.5 1.05 70.5 8.7 48 4

C174 1.2 8.2 1.9 12 18 0.4 0.84 0.85 0.62 0.39 18.1 1.02 70.3 7.7 46 4.1

EX5414 0.6 8.0 2.1 14-22 0.1 1.03 0.97 0.73 0.45 18.8 0.87 72.5 8.4 45 3.9

Prelude 0.8 7.7 2.0 16-24 0.0 0.86 0.87 0.62 0.40 18.2 0.94 71.9 7.3 45 4.1

GH4927 0.2 8.1 1.9 14-20 0.1 0.99 0.94 0.68 0.41 17.1 1.00 71.6 8.4 44 3.9

GH2171 0.1 7.8 2.1 14-24 0.4 0.89 0.93 0.70 0.43 18.0 0.90 71.3 7.4 46 3.75

HMX 2390 0.0 8.4 1.9 16-22 0.1 0.89 0.91 0.66 0.46 18.0 1.00 72.4 8.0 50 3.9

GH6377 0.4 7.9 2.0 16-24 0.2 0.83 0.85 0.65 0.39 17.3 1.21 71.3 8.7 46 4

C2-35 0.5 8.6 2.0 12 18 0.3 0.98 0.98 0.72 0.47 13.5 1.08 67.5 7.2 48 3.75

Rocker 1.3 7.9 1.9 12 22 0.7 0.88 0.89 0.62 0.35 18.1 0.93 69.6 7.4 40 3.25

Bonus 0.5 7.8 2.0 16-22 0.2 0.85 0.88 0.66 0.39 18.0 0.98 70.4 7.5 44 4.25

EX5821 0.6 8.4 2.0 16-24 0.3 0.96 0.99 0.72 0.41 17.5 0.93 71.8 7.8 42 3.75

HMX 7387 0.2 8.8 1.9 16-20 0.3 1.02 1.01 0.70 0.44 17.9 1.06 74.4 9.5 43 4.2

C6-205 1.4 8.2 2.0 16-24 0.3 0.99 1.01 0.72 0.42 13.5 1.19 69.8 7.8 42 4

GH6462 1.2 7.8 2.0 14-20 0.2 0.83 0.86 0.63 0.38 18.4 1.01 72.6 7.7 44 4

EX5807 0.7 8.2 1.9 16-24 0.3 0.91 0.88 0.65 0.37 19.4 0.98 71.9 8.6 42 3.75

Tamarack 0.9 8.6 2.0 12 20 0.5 0.99 1.02 0.76 0.45 16.2 0.97 72.4 7.8 44 3.9

Captain 0.7 8.3 2.0 16-24 0.1 1.05 1.01 0.73 0.44 18.2 0.91 74.0 8.7 43 3.9

C194 0.1 10.1 2.1 16-20 0.9 1.10 1.11 0.86 0.55 17.5 0.95 74.3 9.2 49 4.2

HMX7388 0.6 8.7 1.9 14-22 0.3 0.96 0.98 0.68 0.44 18.3 0.94 72.8 8.3 45 3.9

Notes on next page


Table 7 (continued)













replication.







Table 8. Plant characteristics for su type based on June 2 planting.

Cultivar Plant

Uniformity Tillers

Ear

Position

Smut

Galls

Above

the

Ear (#

plants)

Common

Rust

Rating

Stewart’s

Wilt

Rating

Plant

Height

(in.)

Ear

Ht.

(in.)

C162 G N-S 30 0 M M 83 22

UY3435 VG F-L 30 4 M N 84 25

C151 VG N-S 30 0 N M 81 21

GH 2042 VG N-S 30 1 N N 77 25

C174 VG N-S 60 0 N M-MOD 81 24

EX5414 VG F-L 30 0 M N 83 25

Prelude VG F-L 30 0 M M 84 24

GH4927 VG F-L 30 1.5 N N 78 23

GH2171 VG F-L 30 0 N M 82 23

HMX 2390 VG S-L 30 0 M M 81 25

GH6377 VG S-L 30 0 N M 102 31

C2-35 G-VG F-L 30 0.5 MOD N 84 25

Rocker VG N-S 30 0 N M 100 29

Bonus VG F-L 30 0 N N 84 29

EX5821 VG F-L 30 0 N N 93 28

HMX 7387 VG N-S 30 0 M N 92 29

C6-205 G-VG M-L 30 0 N N 86 26

GH6462 VG F-L 30 0 N N 90 28

EX5807 VG-EX N-S 30 0 N N 96 27

Tamarack VG F-L 30 0.5 N N 85 25

Captain VG F-L 30 1 M M 93 28

C194 G-VG F-L 30 0 N N 97 30

HMX7388 VG F-L 30 0 N N 98 31

Plant Uniformity: Ex=excellent, VG=very good, G=good.

Tillers: N-S=none to small, F-L=few large ones, S-L=some large tillers, M-L=many large tillers.

Ear Position: (This may influence mechanical harvest) 30=30 degree from stalk, 45=45 degree from stalk.

Common Rust Rating: N= no symptoms seen, M=only a few rust pustules noted, MOD=moderate level of rust

infection, SEV=severe amount of rust infection (30% or higher of leaf surface had rust pustules.

Stewart’s Wilt Rating: M=minor lesions, MOD=moderate level of infection (ears would probably be affected),

SEV=severe (some plants were stunted).

Plant Height (in.): The measurement of the plant in inches from the base of the stalk to the top of the tassel. Ten

plants were measured from each plot.

Ear Height (in): The measurement from the base of the stalk to the node at the base of the primary ear. Ten plants

were measured from each plot.

Additional Comments su Type C162 Early maturity, small diameter plant; good husk extension; long, cylindrical to slightly tapered

ears with good tip fill; medium to large, shallow kernels; some ears slightly curved (curved ears

hurt overall rating); some ears a bit oval; a couple ears infected with smut; very good yield and

consistent ear size and yield in both early and later planting.

UY3435 Early maturity, small diameter plant; a few plants had smut galls above the ear; good husk

extension; very good tip fill; round, cylindrical ears; good yield and recovery; very consistent ear

size and yield over both plantings.

C151 A few curved ears; early maturity; minimal to poor husk extension in the second planting; long

ears with decent tip fill; shallow kernels; straight rows; very consistent overall rating and yield

and recovery over both plantings.

GH 2042 Early to midseason maturity; early trial standard; some minor plant lodging; good ear weight in

both plantings; very good ear uniformity; a few ears infected with common smut; good husk

extension in the first planting but minimal in the second planting; very good tip fill in both

plantings; cylindrical, round ears (a few slightly oval); very good overall ear ratings in both

plantings; very good yield and good recovery in both plantings.

C174 Early to midseason maturity; long ear shank; long, slightly tapered ears with medium to large,

shallow kernels and straight rows; nice cut kernel product, might be too tapered for cob market;

very good yield in the first planting and good yield in the second planting (plant population was

a bit less in the second planting); very good overall ear rating; minor to moderate levels of

Stewart’s wilt infection.

EX5414 Early to midseason maturity; slender plant that seems to hold up the heavy ears (some minor

lodging in one plot); good husk extension and very good tip fill; large diameter; cylindrical,

round (a few slightly oval) ears with medium to deep kernels; a little softer pericarp than most

others; good to very good overall ear rating; very good yield and recovery.

Prelude Early to midseason maturity; shorter, slightly tapered (mainly near the tip of the ear), round ears

with a bit tougher pericarp; good flavor; very good husk extension and excellent tip fill; good to

very good overall rating; good yield.

GH 4927 Early to midseason maturity; minimal to poor husk extension; very good to excellent tip fill; very

consistent ear size and length over both plantings; a few slightly oval ears; a few ears with a

slight curve or very one-sided; good to very good overall ear rating; very good to excellent yield.

GH 2171 Early to midseason maturity; shorter, large diameter ears with minimal to poor husk extension;

not filled but uniformly so; good to very good yield and recovery; possibly too big in diameter

for cob market; ear uniformity not quite as good as most others.

HM2390 Midseason maturity; bushy plant; long, cylindrical to slightly tapered ears with good husk

extension in the first planting, but minimal husk extension in the second planting, many ears one-

sided or slightly curved; very good tip fill in both plantings; tough pericarp; good to very good

overall ear rating; nice golden yellow color; consistent over both plantings; very good yield and

recovery.

GH 6377 Midseason maturity; tall, bushy plants; hard to hand harvest (ears do not snap off); cylindrical to

slightly tapered, round ears; minimal husk extension; very good tip fill; straight rows; many

second ears; small to medium kernel size; a bit softer pericarp than most others; very good

overall ear rating, yield, and recovery.

C2-35 An observation entry; midseason maturity; thin stand; long, slightly tapered, round ears with

good tip fill; good yield for less than optimum stand; very good recovery although it was quite

mature at harvest; moderate level of common rust infection will probably keep it from

advancing.

Rocker Midseason maturity; tall plants; cylindrical, round ears; ears not quite as uniform as most other

cultivars; some ears have a slight curve; acceptable overall ear rating (lack of uniformity hurt the

rating); decent yield.

Bonus Mid- to main season maturity; main season trial standard; stout, uniform plants; very good tip

fill; straight rows; tough pericarp; very good overall rating; consistent, good yield over the years.

5821 Mid- to main season maturity; bushy plant; decent husk extension; good tip fill; long, round to

slightly oval ears; small, medium to deep kernels; tough pericarp; good to very good overall

rating; good yield.

HMX 7387 Mid- to main season maturity; bushy plant; very long, slender, cylindrical to slightly tapered

ears; very good to excellent ear uniformity; minimal to poor husk extension; very good tip fill;

straight rows; tough pericarp; very good overall ear rating and excellent yield.

C-205 An observation entry; mid- to main season maturity; thin stand; cylindrical, round ears with very

good husk extension and tip fill; small, shallow to medium depth kernels in straight rows; very

good yield for the plant population; very good overall ear rating; worth looking at in replicated

trial.

GH 6462 Mid- to main season maturity; cylindrical, round ears with very good husk extension and tip fill;

straight rows; very good overall ear rating; good yield; ear uniformity hurts this one a bit.

5807 Mid- to main season maturity; excellent plant uniformity; cylindrical, round ears with decent

husk extension and very good tip fill; a few slightly curved ears; small kernels in straight rows;

good to very good overall rating and very good yield.

Tamarack Mid- to main season maturity; long, slightly tapered ears with good husk extension; straight

rows; tough pericarp; good yield (although lower plant population probably hurt yield); very

good overall rating; cut kernel market; some tassle smut.

Captain Main season maturity; long, cylindrical, round ears with good husk extension and very good tip

fill; small kernels; pericarp a bit softer than others; very good overall ear rating and very good

yield.

C194 Main season maturity; tall, bushy plant; very long, slightly tapered to tapered ear with minimal to

poor husk extension; a few ears slightly curved; ears did not fill but uniformly so; straight rows;

very good overall ear rating; very good to excellent yield and recovery; cut kernel market; some

tassle smut.

HMX 7388 Main season maturity; tall plants with ears high on the stalk; long, round, cylindrical ears with

very good tip fill; straight rows; very good overall ear rating; very good yield.

Cultivar Descriptions Provided by the Seed Source (Su type) C162 General Mills: early season (1,575 heat units) yellow su; Rp1-d gene for rust resistance.

UY3435 Crites Moscow.

C151 General Mills: yellow su; mid- to early season maturity (1,630 heat units); Rp1d rust resistance.

GH 2042 Rogers: 75 days to maturity (1,553 heat units); 7-foot plant height, 24-inch ear height, 1.9-inch

ear diameter, 8.5-inch ear length, 16-20 rows, 12-mm kernel depth; Rp1i gene for rust resistance,

tolerance to MDMV, poast herbicide tolerance.

C174 General Mills: yellow su; early to midseason maturity (1,720 heat units); Rp1d rust resistance.

EX 5414 (EX 087 3 5414) Seminis: early maturity (74 days); MDM resistance; as early or earlier than GH 2042.

Prelude Crites Moscow: an extremely high yielding, medium early processing hybrid; its exceptional

quality is unique for its maturity; suitable as an early and midseason variety; has performed well

across the United States in the early to mid- planting slots; excellent replacement for Jubilee; 2-3

days earlier than Jubilee, 3-4 days later than GH 1861 or Boston; very sweet with an excellent

flavor, eats like an se type; field holding ability, and hence harvest window, is excellent; cob size

is moderate but very consistent; high recovery and good factory throughput; twin cobbing is

common with high synchronicity; this drives good yield potential; moderated to good stalk

strength with reasonable tolerance to stalk rots; can be grown right throughout the season,

although is only slightly stronger in the stalk than Jubilee; has shown greater tolerance to boil

smut than Jubilee in Washington and Oregon; tolerant to the chemicals Accent and Callisto;

moderate multigenic tolerance to rust, moderately susceptible to NLB, MDMV, SW, SLB, and

Grey Leaf Spot; worth trialing anywhere that Jubilee is grown, where you want Jubilee-type

quality, or you need it in an earlier variety; where you want good establishment across a wide

range of conditions with improved Smut tolerance and stalk strength, do not plant into high

disease pressure times or areas of severe storm activity (commercial 2004).

GH 4927 Rogers: 75 days to maturity; stout plant; Rp1i gene for rust resistance; Poast herbicide tolerance;

similar to 2042 but with better plant.

GH 2171 Rogers: 74 days to maturity; Rp1g gene for rust resistance, some NCLB and Stewart’s wilt

tolerance; Poast herbicide tolerance; similar to Cahill.

HMX 2390 Harris Moran: 78 days to maturity; 84-inch plant height, 30-inch ear height, 8.3-inch ear length,

1.8-inch ear diameter, 18-20 rows; yellow su; high yielding; improved disease resistance

(fusarium), intermediate resistance to common rust, susceptible to both MDMV and NCLB,

intermediate resistance to Stewart’s wilt and common smut; medium kernel style developed for

processor market.

GH 6377 Rogers: 82-83 days to maturity; very high quality petite kernel; 8.3-inch ear length, 20 rows; PS-

genes d/g, ET (IR), MDMV (HR), expect Pst (IR) in a Poast-tolerant hybrid.

C2-35 Crookham Co.

Rocker (GH6631) Rogers: su type; 85 days to maturity (1,793) heat units; 8.5-foot plant height, 38-inch ear height,

8.25-inch ear length, 1.85-inch ear diameter, 18-20 rows, 11-mm average kernel depth; Rp1-d &

g genes for rust resistance, tolerant to maize dwarf mosaic virus; Poast herbicide tolerance.

Cultivar Descriptions Provided by the Seed Source (Su type) Bonus Rogers: 83 days to maturity (1,750 heat units); main season processor; normal su type; 7.5-foot

plant height, 36-inch ear height, 8.0-inch ear length, 1.8-inch diameter, 18-22 row count, 11-mm

kernel depth; produces ears with exceptional uniformity of size, shape, and style, which

promotes efficient processing; petite kernel and golden yellow color give it a gourmet

appearance; excellent husk length minimizes potential for bird damage; sturdy clean plant that

harvests easily; resistant to common rust (RP1d gene), tolerant to MDMV, Stewart’s wilt, and

NCLB.

EX 5821 (EX 087 5 5821) Seminis: 82 days to maturity; new race of Rust resistance; Legacy type.

HMX 7387 Harris Moran: full-season maturity at 86 days; 16-18 row count, 22-cm ear length.

C205 Crookham Co.

GH 6462 Rogers: 83 days to maturity; double rust genes d, g, some NCLB, SCLB, MDMV, and Stewart’s

tolerance; great percentage of recovery, and good finished quality and color.

EX 08735807 Seminis: main season hybrid (82 days to maturity); su1 yellow processor hybrid with petite

kernel style; good rowing on 8-inch ears; attractive processed color; intermediate resistance to

MDMV, Stewart’s wilt, and NLB, carries the Rp1-D gene, and has shown good polygenic levels

of rust resistance.

Tamarack Crookham: 84 days to maturity (1,428 heat units); yellow su type; 8.7-inch ear length, 2.0-inch

ear diameter, 30-inch ear height, 89-inch plant height, 20-22 rows; IR for Stewart’s Wilt, Rp1g

gene for rust resistance, HR to MDMV.

Captain Crites Moscow.

C194 General Mills: yellow su type; full-season maturity (1,900 heat units); Rp1d,-g & I genes for rust

resistance.

HMX 7388 Harris Moran: full-season maturity at 86 days; 16-18 row count, 22-cm ear length.

Table 9. Maturity of supersweet gene type for planting date June 16.

Cultivar Days

To Silk

Heat

Units to

Silk

(base 50)

Days to

Harvest

Heat

Units to

Harvest

(base 50)

%

Moisture

at Harvest

Seed

Source

Maturity

C177 56 1,079 85 1,558 75.4 1760

Protégé 60 1,140 90 1,617 80.0 77

ACX7132 58 1,116 90 1,614 74.9 na

7-272 60 1,136 90 1,617 76.5 na

GSS 1477 61 1,167 92 1,650 76.7 79

Magnum II 61 1,162 93 1,653 76.6 81

HB2642 61 1,160 93 1,656 75.8 na

HMX 7389S 62 1,181 94 1,666 75.6 83

Overland 63 1,200 94 1,669 77.8 84

HY1089 61 1,156 94 1,664 74.4 na

ACX5008 61 1,164 95 1,670 77.7 na

GSS7051 64 1,219 95 1,673 75.4 84

Fortitude 61 1,161 95 1,671 75.5 80

Cshyp6-223 62 1,178 96 1,675 76.4 na

C179 62 1,173 96 1,679 78.8 1890

Galaxy 64 1,209 97 1,684 75.6 na

HY1481 63 1,186 97 1,680 75.5 na

HW2545 64 1,209 97 1,682 76.6 na

GSS6550 64 1,204 98 1,689 77.3 84

6-225 62 1,167 99 1,693 76.0 na

7-265 61 1,161 99 1,695 73.8 na

7-276 63 1,194 99 1,695 75.5 na

ACX 5156 63 1,194 99 1,695 74.0 na

6-224 62 1,177 100 1,696 76.0 na

na=not available.






Heat Units to Harvest (base 50): Growing degree day units base 50°F. The accumulation of degree-day units from

planting until harvest.


percent moisture.


Table 10. Ear and kernel ratings for supersweet planting date June 16.

Cultivar

Ear

Unif.

Rating

Ear

Shape

Rating

Oval/

Round

Rating

Kernel

Rowing

Rating

Kernel

Size

Rating

Kernel

Depth

(mm)

Kernel

Depth

Rating

Flavor

Rating

Pericarp

Rating

Market

Use

Rating

C177 G-VG SL T R ST-SL I M-L 12 SH OK-G OK-T CUT

Protégé G-VG CY-SL

T R ST-SL I M 12 M OK OK B

ACX7132 G-VG SL T-T R ST-SL I M 11 SH-M OK-G OK CUT

7-272 VG SL T-T R-SL O ST-SL I M 12 SH-M OK-G T CUT

GSS 1477 G-VG CY R ST-SL I M 12 M OK-G OK-T B

Magnum II VG CY R ST-SL I M 13 M OK-G OK B

HB2642 VG CY-SL

T R ST M 12 M G S-OK B

HMX

7389S VG-E CY R ST M 13 M-D G T B

Overland VG CY-SL

T R ST-SL I S-M 13 M-D G OK B

HY1089 VG-E CY R ST S 12 M OK-G OK-T B

ACX5008 VG VCY R ST M-L 13 M ok OK B

GSS7051 VG CY R-SL O ST M 12 SH-M G-SW T B

Fortitude VG CY R ST M 13 M OK-G OK-T B

Cshyp6-223 VG CY R ST M 14 M-D G OK B

C179 VG CY-SL

T R ST-SL I M 14 M-D OK OK CUT

Galaxy VG-E CY R ST S-M 13 M-D G OK-T B

HY1481 G-VG CY R-SL O ST-SL I S 13 M OK-G OK-T B

HW2545 G-VG CY-SL

T R ST S-M 12 M G S B

GSS6550 VG-E CY R ST M 13 M G OK-T B

6-225 G CY R ST M-L 14 M G S CUT

7-265 VG T R ST-SL I M 13 M G T CUT

7-276 G-VG SL T-T R ST-SL I M 13 M-D G OK CUT

ACX 5156 G-VG SL T R-SL O ST-SL I M 13 M-D OK-G OK-T B

6-224 G-VG CY SL O ST M 14 M G S CUT


Ear Unif. Rating: Ex=excellent (entire sample was the same length, diameter and uniform tip fill), VG=very good,

G=good, F=fair, P=poor.



Kernel Rowing Rating: The straightness of the rows of kernels. St=straight, SL I=slightly irregular, IRR=quite

irregular.


Kernel Depth (mm): The measurement of how deep the kernel was in millimeters (determined from breaking five

ears in two and measuring the kernel depth.

Kernel Depth Rating: S=shallow, M=moderate, D=deep.




Table 11. Ear and yield data for supersweet gene type.

Cultivar

Husk

Ext.

(in.)

Ear

Length

(in.)

Ear

Dia.

(in.)

Kernel

Row

Range

Unfilled

Tip

(in.)

Weight

per

Unhusked

Ear (lbs)

Sample

Weight

per

Unhusked

Ear (lbs

Sample

Husked

Ear

Weight

(lbs)

Sample

Kernel

Weight

per Ear

(lbs)

Plants

per

Acre

(1,000)

Ears

Per

Plant

%

Moisture

Tons

Per

Acre

%

Recovery

Overall

Ear

Rating

C177 0.3 7.8 2.1 12 20 0.1 0.87 0.86 0.67 0.39 19.8 0.99 75.4 8.6 46 3.7

Protégé 0.1 8.1 2.0 16-22 0.7 0.88 0.90 0.65 0.39 17.8 0.95 80.0 7.4 43 3.75

ACX7132 0.2 9.1 2.1 12 20 0.6 0.97 0.95 0.74 0.54 17.9 0.96 74.9 8.3 57 3.6

C7-272 0.5 8.1 2.0 14-18 0.1 0.83 0.89 0.64 0.39 8.1 1.71 76.5 5.6 44 4

GSS 1477 0.6 8.2 2.1 14-22 1.3 0.86 0.89 0.68 0.39 19.2 0.94 76.7 7.8 44 3

Magnum II 0.4 8.4 2.1 14-20 0.7 0.97 0.98 0.70 0.44 18.5 0.92 76.6 8.3 45 3.8

HB2642 1.3 8.4 2.1 14-20 0.7 0.95 0.93 0.76 0.45 18.0 0.98 75.8 8.3 51 4

HMX 7389S 1.2 7.4 2.1 16-22 0.1 0.96 0.97 0.70 0.39 18.9 0.97 75.6 8.8 40 4.1

Overland -0.4 8.3 2.1 16-22 0.7 0.96 0.97 0.73 0.54 17.4 0.93 77.8 7.8 56 4

HY1089 1.7 7.9 2.1 16-20 0.6 0.92 0.92 0.64 0.39 18.4 0.97 74.4 8.3 42 4.1

ACX5008 0.7 8.2 2.1 16-20 0.1 0.89 0.91 0.73 0.42 17.8 0.90 77.7 7.1 46 4.1

GSS7051 0.6 8.3 2.0 14-20 0.6 0.92 0.93 0.68 0.39 14.9 0.91 75.4 6.3 42 3.9

Fortitude 2.0 8.3 2.2 14-22 2.6 1.05 1.07 0.76 0.45 9.8 1.29 75.5 6.4 42 4

Csh6-223 0.2 8.0 2.2 14-18 0.2 0.98 1.00 0.74 0.44 8.8 1.53 76.4 6.3 44 4.25

C179 -0.6 8.8 2.4 16-24 0.9 1.10 1.12 0.92 0.61 17.8 0.88 78.8 8.5 54 3.8

Galaxy 0.3 7.9 2.1 16-22 0.4 0.91 0.91 0.71 0.43 18.7 0.94 75.6 8.0 47 4.1

HY1481 -0.2 8.1 2.1 16-22 0.6 0.92 0.92 0.72 0.41 19.1 0.86 75.5 7.5 44 3.4

HW2545 1.0 7.9 2.1 16-24 0.7 0.98 0.97 0.68 0.38 14.7 0.94 76.6 6.7 39 3.7

GSS6550 0.1 7.7 2.0 14-20 0.6 0.79 0.80 0.61 0.38 17.6 1.07 77.3 7.4 47 4.25

C6-225 1.0 8.3 2.2 12 18 0.7 1.02 1.09 0.84 0.59 8.1 1.43 76.0 5.9 54 3.5

C7-265 0.1 9.0 2.2 14-20 0.5 0.99 1.05 0.84 0.58 9.8 1.67 73.8 8.1 55 3.75

C7-276 0.3 8.7 2.2 16-22 0.6 1.02 1.06 0.81 0.53 7.4 1.56 75.5 5.9 50 3.6

ACX 5156 1.3 6.8 2.1 16-20 0.1 0.79 0.74 0.54 0.39 15.2 1.02 74.0 6.1 53 3.5

C6-224 0.7 9.2 2.2 16-22 0.7 1.11 1.14 0.87 0.54 7.8 1.28 76.0 5.5 47 2.75

Notes on next page


Table 11 (continued)













replication.







Table 12. Plant characteristics for supersweet gene type.

Cultivar Plant

Uniformity Tillers

Ear

Position

Smut

Galls

Above

the Ear

(#

plants)

Common

Rust

Rating

Stewart’s

Wilt

Rating

NCLB

Rating

Plant

Height

(in.)

Ear

Height

(in)

C177 G-VG S-L 30 0 MOD MOD M 83 21

Protégé VG N-S 30-60 0 N N N 76 21

ACX7132 G-VG S 30 1 M M MOD 82 22

C7-272 G-VG L 30 0 MOD N N 76 18

GSS 1477 VG N-S 30 0 M N N 83 23

Magnum II VG N-S 30 0 M N N 92 26

HB2642 G-VG S 30-60 0 M-MOD M M 89 23

HMX

7389S VG N-S 30 0 N N N 90 30

Overland VG N-S 60-90 0 N N N 81 28

HY1089 G-VG F-L 30 0 M N N 88 23

ACX5008 G-VG S 30 3 M M M 71 16

GSS7051 G-VG S-L 60 0 N N N 84 27

Fortitude VG S-L 30 0 M-MOD N N 77 21

Cshyp6-

223 G-VG F-L 30 0 M M N 80 26

C179 VG F-L 30 0 N M M 91 26

Galaxy G-VG N-S 30 0 M M N 82 24

HY1481 VG S 30-60 0 M N N 88 26

HW2545 G-VG S-L 30 0 M N N 84 21

GSS6550 VG S-L 30-60 0 N N N 84 26

C6-225 G-VG L 30-60 0 N N N 78 21

C7-265 VG L 30-60 0 N N N 84 28

C7-276 NA NA NA NA NA NA NA 81 25

ACX 5156 G-VG S 30 0 M N N 76 22

6-224 G L 30 0 MOD N N 80 24

Plant Uniformity: Ex=excellent, VG=very good, G=good.

Tillers: N-S=none to small, F-L=few large ones, S-L=some large tillers, M-L=many large tillers.

Ear Position: (This may influence mechanical harvest) 30=30 degree from stalk, 45=45 degree from stalk.

Common Rust Rating: N= no symptoms seen, M=only a few rust pustules noted, MOD=moderate level of rust

infection, SEV=severe amount of rust infection (30% or higher of leaf surface had rust pustules.

Stewart’s Wilt Rating: M=minor lesions, MOD=moderate level of infection (ears would probably be affected),

SEV=severe (some plants were stunted).

Northern Corn Leaf Blight Rating: N=none, M=minor, Mod.=moderate.

Plant Height (in.): The measurement of the plant in inches from the base of the stalk to the top of the tassel. Ten

plants were measured from each plot.

Ear Height (in): The measurement from the base of the stalk to the node at the base of the primary ear. Ten plants

were measured from each plot.

Additional Comments Supersweet Type C177 Early season maturity; slightly tapered ears with minimal to poor husk extension; very good to

excellent tip fill; ears quite one-sided; medium to large, shallow kernels; very good yield;

probably best for cut kernel market; moderate levels of common rust and Stewart’s wilt

infection.

Protégé Early to midseason maturity; cylindrical to slightly tapered ears with minimal to poor husk

extension; ears uniformly not filled; small cob; difficult to use moisture as an indicator of

maturity.

ACX 7132 Early to midseason maturity; long, slightly tapered to tapered ears with minimal to poor husk

extension; very good yield and excellent recovery; best market would be cut kernel; moderate

level of NCLB infection; ear uniformity could be better.

C7-272 Observation entry; early to midseason maturity; thin stand; slightly tapered to tapered, round to

slightly oval ears with very good to excellent tip fill; shallow to medium kernel depth; tough

pericarp; very good overall ear rating; some tassle smut, moderate level of common rust

infection; might be worth looking at again in replicated study.

GSS 1477 Early to midseason maturity; some broken plants after hard winds; round, cylindrical ears with

uniformly poor fill; decent yield; ears very one-sided to slightly curved.

Magnum II Mid- to main season maturity; tall plants; ears quite one-sided; long; cylindrical, round ears with

minimal husk extension; ears were uniformly not filled; very good yield and good recovery.

HB 2642 Mid- to main season maturity; bicolor; many broken plants after high winds; long, cylindrical to

slightly tapered ears with very good husk extension; ears were not filled; straight rows; pericarp

a bit softer than most others; very good overall ear rating, yield, and recovery; moderate level of

common rust infection; more of a fresh market variety than a processor.

HMX 7389S Mid- to main season maturity; tall plant; some broken plants after high winds, very one-sided to

slightly curved ears; short, very uniform ears with very good husk extension and tip fill; straight

rows; tough pericarp; very good overall ear rating; very good to excellent yield; recovery was on

the low side although the kernels were quite deep.

Overland Mid- to main season maturity; our supersweet standard; ear angle 60-90 degrees from the plant;

long, cylindrical to slightly tapered ears with exposed tips; ears uniformly not filled; small,

medium to deep kernels; good yield and excellent recovery; very good overall ear rating.

HY1089 Mid- to main season maturity; very good to excellent ear uniformity; cylindrical ears with good

husk extension; small, pointed type kernels in straight rows; very good yield and overall ear

ratings.

ACX 5008 Mid- to main season maturity; short plant; ear height may be a concern in a dry year; very

cylindrical ears with decent husk extension; very good to excellent tip fill; medium to large

kernels in straight rows; decent yield and very good recovery; very good overall ear rating; a few

plants with common smut galls above the ear.

GSS7051 Mid- to main season maturity; less than optimum plant stand; tall plants; many broken plants

after high winds; long, cylindrical ears with decent husk extension; not filled but uniformly so;

straight rows; good flavor; tough pericarp; very good overall ear rating.

Fortitude Mid- to main season maturity; thin stand; long, cylindrical, large diameter ears; long husk

extension and uniform; poor tip fill; straight rows; very good overall ear rating (positives

outweighed the poor fill); small cob; moderate level of common rust infection (disease

susceptibility may keep it from becoming commercially acceptable).

C6-223 Main season maturity; thin stand; cylindrical, large diameter ears with minimal to poor husk

extension; very good tip fill; medium to deep kernels in straight rows; very good overall ear

rating; probably worth looking at again in replicated study with better seed.

C179 Main season maturity; tall plant; a number of broken plants after high winds; a few ears broke

while husking; external baby ears attached to the main ear; very long, large diameter, cylindrical

to slightly tapered ears with exposed tips; ears one-sided to slightly curved; ears uniformly not

filled; medium to deep kernels; very good yield and recovery.

Galaxy Main season maturity; cylindrical, very uniform ears with minimal husk extension; small,

medium to deep kernels in straight rows; very good overall ear rating; very good yield and

recovery; very good potential.

HY 1481 Main season maturity; a number of broken plants after high winds; cylindrical, round to slightly

oval ears with exposed tips; small kernels; decent yield.

HW 2545 Main season maturity; white kernels; less than optimum plant stand; very uniform, cylindrical to

slightly tapered ears with good husk extension; small kernels in straight rows; soft pericarp;

decent yield and very good recovery; very good overall ear rating.

GSS 6550 Main season maturity; bushy plant; some broken plants after high winds; very good to excellent

ear uniformity; cylindrical, round ears with minimal to poor husk extension; straight rows;

decent yield and very good recovery; very good overall ear rating.

C6-225 Observation entry; main season maturity; thin stand; cylindrical, large diameter, round ears with

good husk extension; ears not filled and not as uniform as they should be; straight rows; medium

to large kernels; soft pericarp; excellent recovery.

C7-265 Observation entry; main season maturity; thin stand; long, tapered, large diameter ears with

minimal to poor husk extension; tough pericarp; very good yield (considering the low plant

stand) and recovery; a few ears infected with common smut; possibly worth looking at again in

replicated study.

C7-276 Observation entry; main season maturity; thin stand; long, tapered, large diameter ears with

minimal husk extension; medium to deep kernels; very good recovery.

ACX 5156 Observation entry; main season maturity; less than optimum plant stand; short, slightly tapered,

round to slightly oval ears with good husk extension; very good to excellent tip fill; good cut

corn recovery; a special niche market type of ear.

C6-224 Observation entry; main season maturity; thin stand; long, large diameter, cylindrical, slightly

oval ears with decent husk extension; ears were not filled; straight rows; soft pericarp;

unacceptable overall ear rating (three flat tipped ears in the sample); moderate level of common

rust infection.

Descriptions Provided by the Seed Source (Supersweets) C177 General Mills: early season maturity (1,760 heat units); yellow supersweet; Rp1-d gene for rust

resistance.

Protégé (GSS 7164) Rogers: 77 days to maturity; similar to GSS 9299 with newer I gene for rust resistance and better

ear uniformity.

ACX 7132 Abbott & Cobb.

C7-272 Crookham Co.

GSS 1477 Rogers: new; 79 days to maturity; 8.5-inch ear; Rp1d gene for rust, some overall tolerances for

new race, HR for NCLB, SCLB, and IR on Stewart’s Wilt and MDMV; good recovery and

quality.

Magnum II Rogers: 81 days maturity; 8.5-inch ear length, 16-18 rows, 1.9-inch diameter; strong plant; IR to

common rust, HR to NCLB, IR to SCLB; excellent husk cover; good seedling vigor; good field

holding capacity; straight rowing.

HB 2642 Crites Moscow: bicolor.

HMX 7389 Harris Moran: 83 days to maturity; 16-18 row count; multiple gene rust resistance, IR for NCLB;

21-cm ear length.

Overland (GSS 3287) Rogers: 84 days to maturity (1,775 heat units); 7-foot plant height, 36-inch ear height, 8.5-inch

ear length, 1.85-inch ear diameter, 18-20 rows, 12-mm kernel depth; Rp1i gene for rust

resistance, resistance to NCLB, tolerance to MDMV and SW.

HY1089 Crites Moscow.

ACX 5008 Abbott & Cobb.

GSS7051 Rogers: SSJ cob quality in a late season great multi-disease package; 84 days to maturity; rust

genes di, NCLB/Et (HR), Stewart’sWilt or Pst very good, but too new to say which IR (oldMR)

or (HR) yet.

Fortitude (CSH3-99) Crookham: 80 days to maturity.

Cshyp6-223 Crookham.

C179 General Mills: full-season maturity (1,890 heat units); yellow supersweet; Rp1d, g & I genes for

rust resistance.

Galaxy Crites Moscow.

HY 1481 Crites Moscow.

HW 2545 Crites Moscow: white.

GSS 6550 Rogers: 84 days to maturity; first Poast-tolerant supersweet; Rp1I gene for rust resistance; lush

green plant; IR to NCLB, high resistance to MDMV; 16-18 rows, 1.8-inch diameter.

C6-225 Crookham Co.

C7-265 Crookham Co.

C7-276 Crookham Co.

ACX 5156 Crookham Co.

C6-224 Crookham Co.

Table 13. Weather summary.

Day Max. Temp. Min.

Temp.

Mean

Temp. Precip.

Acc

Precip.

Degree

Days Base

50

Acc. DD

Units

May 2008

1 50 32 41 0 0 0

2 57 36 46.5 0.05 0.05 0 0

3 61 50 55.5 0.03 0.08 5.5 6

4 67 50 58.5 0.45 0.53 8.5 14

5 56 36 46 0 0.53 0 14

6 67 41 54 0 0.53 4 18

7 65 42 53.5 0 0.53 3.5 22

7 74 46 60 0.12 0.65 10 32

9 55 38 46.5 0 0.65 0 32

10 59 42 50.5 0.01 0.66 0.5 32

11 63 38 50.5 0 0.66 0.5 33

12 65 46 55.5 0 0.66 5.5 38

13 61 45 53 0 0.66 3 41

14 68 41 54.5 0 0.66 4.5 46

15 75 48 61.5 0.17 0.83 11.5 57

16 63 45 54 0 0.83 4 61

17 55 41 48 0.01 0.84 0 61

18 67 42 54.5 0.13 0.97 4.5 66

19 64 40 52 0.15 1.12 2 68

20 49 36 42.5 0.01 1.13 0 68

21 61 42 51.5 0 1.13 1.5 69

22 54 41 47.5 0.07 1.2 0 69



Day Max. Temp. Min.

Temp.

Mean

Temp. Precip.

Acc

Precip.

Degree

Days Base

50

Acc. DD

Units

May 2008 (continued)

23 56 42 49 0 1.2 0 69

24 61 47 54 0.03 1.23 4 73

25 65 48 56.5 0 1.23 6.5 80

26 75 49 62 0 1.23 12 92

27 83 59 71 0 1.23 21 113

28 64 38 51 0 1.23 1 114

29 59 41 50 0 1.23 0 114

30 72 46 59 0 1.23 9 123

31 72 53 62.5 0.13 1.36 12.5 135

June 2008

1 77 55 66 0.38 1.74 16 151

2 63 52 57.5 0.02 1.76 7.5 159

3 76 56 66 0 1.76 16 175

4 72 58 65 0.04 1.8 15 190

5 73 60 66.5 0 1.8 16.5 206

6 82 64 73 0.01 1.81 23 229

7 94 73 83.5 0 1.81 33.5 263

8 89 68 78.5 0 1.81 28.5 291

9 87 71 79 0.11 1.92 29 320

10 93 66 79.5 0 1.92 29.5 350

11 89 58 73.5 0.3 2.22 23.5 373

12 80 55 67.5 0 2.22 17.5 391

13 76 56 66 0 2.22 16 407

14 88 63 75.5 0.05 2.27 25.5 432

15 74 62 68 0.04 2.31 18 450

16 83 59 71 0.35 2.66 21 471

17 79 55 67 0.06 2.72 17 488

18 65 50 57.5 0.11 2.83 7.5 496

19 66 49 57.5 0.3 3.13 7.5 503

20 66 55 60.5 0.12 3.25 10.5 514

21 72 53 62.5 0.01 3.26 12.5 526

22 80 58 69 0.22 3.48 19 545



Day Max. Temp. Min.

Temp.

Mean

Temp. Precip.

Acc

Precip.

Degree

Days Base

50

Acc. DD

Units

June 2008 (continued)

23 77 58 67.5 0.38 3.86 17.5 563

24 76 57 66.5 0 3.86 16.5 579

25 73 55 64 0 3.86 14 593

26 81 62 71.5 0 3.86 21.5 615

27 80 65 72.5 0 3.86 22.5 637

28 82 64 73 0.06 3.92 23 660

29 83 68 75.5 0.02 3.94 25.5 686

30 81 60 70.5 0.87 4.81 20.5 706

July 2008

1 78 60 69 0.41 5.22 19 725

2 76 52 64 0 5.22 14 739

3 82 57 69.5 0 5.22 19.5 759

4 73 52 62.5 0.21 5.43 12.5 771

5 74 51 62.5 0.02 5.45 12.5 784

6 78 54 66 0 5.45 16 800

7 84 64 74 0 5.45 24 824

8 87 66 76.5 0 5.45 26.5 850

9 90 69 79.5 0 5.45 29.5 880

10 81 60 70.5 0.01 5.46 20.5 900

11 77 58 67.5 0.01 5.47 17.5 918

12 72 59 65.5 0.13 5.6 15.5 933

13 89 64 76.5 0.01 5.61 26.5 960

14 77 58 67.5 0.95 6.56 17.5 977

15 79 54 66.5 0 6.56 16.5 994

16 80 59 69.5 0 6.56 19.5 1,013

17 86 63 74.5 0.2 6.76 24.5 1,038

18 84 66 75 0.07 6.83 25 1,063

19 87 72 79.5 0 6.83 29.5 1,092

20 87 69 78 0.69 7.52 28 1,120

21 85 67 76 0.53 8.05 26 1,146

22 79 62 70.5 0.14 8.19 20.5 1,167

23 78 63 70.5 0.9 9.09 20.5 1,187



Day Max. Temp. Min.

Temp.

Mean

Temp. Precip.

Acc

Precip.

Degree

Days Base

50

Acc. DD

Units

July 2008 (continued)

24 77 63 70 0.06 9.15 20 1,207

25 68 58 63 0.51 9.66 13 1,220

26 81 63 72 0 9.66 22 1,242

27 82 64 73 0.09 9.75 23 1,265

28 78 64 71 0 9.75 21 1,286

29 79 63 71 0 9.75 21 1,307

30 79 59 69 0.05 9.8 19 1,326

31 81 63 72 0 9.8 22 1,348

August 2008

1 82 64 73 0 9.8 23 1,371

2 80 64 72 0.11 9.91 22 1,393

3 75 62 68.5 0.12 10.03 18.5 1,412

4 72 63 67.5 0 10.03 17.5 1,429

5 79 56 67.5 0 10.03 17.5 1,447

6 82 62 72 0.43 10.46 22 1,469

7 80 63 71.5 0 10.46 21.5 1,490

8 76 59 67.5 0 10.46 17.5 1,508

9 69 57 63 1.27 11.73 13 1,521

10 75 58 66.5 0.4 12.13 16.5 1,537

11 74 54 64 0.24 12.37 14 1,551

12 70 56 63 0.13 12.5 13 1,564

13 73 55 64 0.07 12.57 14 1,578

14 75 55 65 0.11 12.68 15 1,593

15 75 57 66 0 12.68 16 1,609

16 75 56 65.5 0 12.68 15.5 1,625

17 77 62 69.5 0 12.68 19.5 1,644

18 79 60 69.5 0 12.68 19.5 1,664

19 83 58 70.5 0.16 12.84 20.5 1,684

20 65 49 57 0 12.84 7 1,691

21 70 50 60 0 12.84 10 1,701

22 79 53 66 0 12.84 16 1,717

23 84 62 73 0 12.84 23 1,740



Day Max. Temp. Min.

Temp.

Mean

Temp. Precip.

Acc

Precip.

Degree

Days Base

50

Acc. DD

Units

August 2008 (continued)

24 82 62 72 0 12.84 22 1,762

25 85 59 72 0.08 12.92 22 1,784

26 68 51 59.5 0 12.92 9.5 1,794

27 71 47 59 0 12.92 9 1,803

28 76 50 63 0 12.92 13 1,816

29 70 58 64 0.7 13.62 14 1,830

30 74 60 67 0.34 13.96 17 1,847

31 77 58 67.5 0 13.96 17.5 1,864

September 2008

1 77 52 64.5 0 13.96 14.5 1,879

2 78 53 65.5 0 13.96 15.5 1,894

3 81 56 68.5 0 13.96 18.5 1,913

4 82 56 69 0 13.96 19 1,932

5 83 64 73.5 0 13.96 23.5 1,955

6 89 63 76 0 13.96 26 1,981

7 67 57 62 0.2 14.16 12 1,993

8 71 56 63.5 0.03 14.19 13.5 2,007

9 75 57 66 0.25 14.44 16 2,023

10 66 49 57.5 0.11 14.55 7.5 2,030

11 65 45 55 0 14.55 5 2,035

12 71 47 59 0 14.55 9 2,044

13 69 61 65 0.93 15.48 15 2,059

14 75 67 71 0.21 15.69 21 2,080

15 85 62 73.5 0 15.69 23.5 2,104

16 65 47 56 0 15.69 6 2,110

17 66 45 55.5 0 15.69 5.5 2,115

18 74 46 60 0 15.69 10 2,125

19 64 39 51.5 0 15.69 1.5 2,127

20 67 41 54 0.02 15.71 4 2,131

21 73 51 62 0 15.71 12 2,143

22 60 41 50.5 0.11 15.82 0.5 2,143

23 64 41 52.5 0 15.82 2.5 2,146

24 69 43 56 0 15.82 6 2,152

Date post:	22-Jul-2020
Category:	Documents
Upload:	others
View:	0 times
Download:	0 times

N.Y.S. 2008 Processing Sweet Corn Variety Replicated and ... · Prelude 1,033 67 1,548 94 74.9 na...

Documents