REPORT

of

COMMITTEE ON EXAMINATION

This is to certify that we the

undersigned, as a Committee of the Graduate

School, have given .~l.P.h. ... J.9.nn..Jl.~r.R.~.r.._ ................ .

final oral examination for the degree of

Master of .69..l.~Jl~JL... . We recommend that the

degree of Master of · ---~-~1-~A.~-~·-· be conferred

upon the candidate.

Minneapolis, Minnesota

···-·············-·-·············-·-····· 191

: ::.::·. ::··:·····:·:··.: ······ : ::·.~:·.::· :·:···:. ·.• : !:. . . . .. . . . . . . . . . . . . . . .. : . . .. •, . .. . ... .. . .. . . . . . !··:::·::.·: ...... :·.

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ff It I If ff (I

t I • f ~ 4 f f I f t I l

! •. : ! • : : •. : f ', : ', ~

ORT

ot

Coi;i itte n Th 1

The und rsign d, acing n a C mm' t .e of

he Graduate School, bav rrnd th cc ~p nyl

the is ubmitt d by .... B~J.pp JQhP. .Q~r_'Qer ··-·-··· .. ·

for the degree of of Sci nee

They pprove t a a th· i ing b r qu r -

mcnt of th Gradu t~ cbool or th "niv r y f

1 n o a, and r comm nd ha b c p d

partial fulfillm nt of th r qu r

degr of ... ··--~.~~E. ~~- s~t .. !:lc .• ··- _ .. ·-

·-·----·-·-·--····------·· __ _. ____ _ ·-·-·····----···········-·191

/

c r

c ....

r

,, v ..... .

J

~he rit r des · re o c _ ress his o. precia.t::. n _, o

~sociat~ L~~~ ssor ~· 0. -.; ' .u. a o t • e u ct · n m

s , "o-· many >Jt.ion a ... J. c. · ·v sms -..iv n lat.iv 0

·v e r ration of s J." r , an · a so _, o _ o ~es or re

B s l le:f o~ the ivis.i.on rono y an _ rm

and ssoc.i.a e . rofecsor • K. R es , Read of t e ec ion o

Pl nt Bree .:..n h t ' u .ind_y a v.:..ce , c ed. v ..... l able

s .istance.

.L ... ·o., ...

z

·c.., on

c ~ .l • lJ e

o·"

t··. c ions

c

l

s 3

en"' • •

IL U!' . t ... , ' e J. ll e o:: r _uis

"et r · ne "' cons·L n l "' ..

.... d

..,1

LTR UC~IC .

. ]1ile numerous investigationc have been ma e durl!v the

l st decade nent the correlation of characters ou1· v rious

f£.rm cror,s , comparatively fm. of them ha.ve deal stt.tist' 11

·ri th the :possible relc.. tion that may exist bet:7ee1 the .:ei ht of

see cl ple.nted and the resnlJ1.1 nt. plant, chur cters , _ rticul rl

those characters whicc ha·e a direct bearing on the yield o~ rain .

To the n~iter thin seems oft e ~reatest im_ortruice. It is true ,

frcqucn t studies of this x cl ti on have been ma<ie , b t , ~rom a

scien·tific vie:•poir +, the methods uhlch \:ere em loyed may rig t­

fully be questioned. The prese t a er treats of un investiga­

tion conce:tning t'1c :possible influence , size of end.ospe1·m, may

have on the succeeding enera iv , .:.n '1.:te s'1.1u<ly of hie

biometrical method 1as 1sed t r out .

Seed se ection is obvlousl~ an i per nt factor in re-

ea1~ch of this n· 'Lure . Hand and. mac i e select· ons a1~e bo .. " i -

accurate. .ben the ~ormer is used , one ' s critcr·o f si:rn is

li_el r to change from .. ,;ime ~1.10 time e ce the rev l ing classes

based on t is criterion are more or less luctuati Ieachine

selectior: ~oes not carefully discri ina·c bet een large seed of

a light s~ccific gravit-y and small seed of a he vy s ecific

:ravity. All ~W:1ings consiclerP ~ , then , it ould seerr. 1.1ha t b

sing only c l'efully ·rnighed. individual 1:e1·nels s seed , ~v e most

ellable res1 lts may be obtained. Then too , me · odw other t! n

the statistic 1 ·:hi ch have been em~ lo ed d.ui- in the ast .:.n study­

ing this ~ l'Oblem , mve not included an account of the exact

- 1 -

o " seeds i$tribute are . in a c ed c

.L .i.on sre handic r> w n co s.r . ·t~ th ~ 0 ow· 0 . n a

crow ed con it:on. m t .od vl1'ch ·n res a uni orm distr: n

v n urea bv' .ten this .:f cu t •

t:.e fore oin ~

cons · cratio s and · n th lig •. t o " re ent d ., ex-

erim"'ntation , -'11he biometr cal ethocl se med to romi m s in

the ; :; JJ' cc rate in ormat · on; con ... e u ntl .as

stu y.:n ..... the r ob le and, na ., th s ~e J '

o se d and yi l , or, state ~ore ~. ci"lc~l~y , to ·et rm.in the

le ln.r:uence th amount f e1. · os erm may have on the

char ctcrs v~ the n xt 0ener~tion.

r u a ' s c osen l r el

ecause o •ts grL ~ ..... • ortanc the s.rine h at ectio •

en too, its bi ts of ro rt an"' c·.a c s r UC.

em elves • adily to th deter b.:omet :c l con t t •

ther e , inves~-u ions h v ho. t t• e co -

staLt 0 not .... ..r.r r :i:adicc...ll ·n the d '" r nt v ... ri t · es. !! c a. .i..L

.·hat is "ound. to e tru O!" s t ca t ·n·ic t• 0 ....

a end ency ln ·he o ··.er s.rin var.i L • s. "

2

.J.. .J.. ious invest · tors h ve sec·re ore or ess con-

"lict · - evi .. ence _e t e · n "lu.ence 0 such s lection .

o.e hav ..l 11.lld osi ti ve corr el 1.; · ons t. n certa.i. cters

·where others h ve ound ust as d n ative correl ti ns

r.: t.h s · m·1ar C11 racte r s . Eo 1ever , when one cons ·ders th ct

that corre ati on coe f" c "en s Jhemselves u ual: var o

ably·, uven · n the same cha:-acte:i.· o " one v rie t under .... er· t ·

a • the :a.ct tat many ''t.l ·n...., s ma i "luence cor:i.· 1 t · on , s c as ,

s .:.~ . "isease , varlet , c ·m t.:.c co - · t · on , etc .,

co· tra ictory evidence becomes less sur r in...,.

ve and .... e · uht . !O -·k . .. it' ts OU! d hi h .u ..., J

OS.itiv c rrclatio .. s be .een . .c aver 0 t ' e t

es sub~ect...:.ve n es.c of the c'1ar cters s re"' t·v

to a and aT" rave . cl total an nu ber r ls

pro n" avera~e nu er o· s ..... · 1~e ets per culm. hi~ .

uce

os· "'· ·ve corre la:'v · on a so etTieen to"·al .:.el

mun' er 0 c· _ms ; also . tot l - ield n n 1 . _he aver e k .i.nel e . • "'11 not cor:·e tcd. cl 1 •t

o ·e~ c1aracter considere exce t it! the ~ver ~

n eve o_m nt as r r es e· , the ·ald a re c r -

duc "'vion o the um· er o'""' • ernel e l n , ..... er cu_ r

s . , ..... JS..e .... ther t '1an in ve:r g

s"' .i.kelcts . T e a so "oun he io e rica- co

:·um· r re "ers .. o bi · o..., ra ... ·

- 3 -

cor:;.·c at.ion ooe· .1.ici 1ts , n:xHi.as , tand. rci dev · a:'·ions , "'nd coe ,._

~icie ts o var.:.abil "ty -- to e more or 1 ss r s on i t

en-·.:.ronmental con it · n such as ~~ , n · f ren ~ ar .

' ~ · . .... the !e ras ·a tat · f rm i·_y o

isolate1 :r the iti " borhoo· f th usa.nl , ... e str ins o

2ed wheat . n his inve~ti tion wit h se he :ound o ..... d d.i.f e ... -

onces between s ~ains in the aha e and s ze o " b r. , .:.n _esis -

an e to lo gin , in a .:. ., i +--- to iold , an .:..1 ual · ty f · e:rne_ .

He c ncludes , "It · s no oss · · e o te b ., ,_.pea.ranee o:

t e Rrains or a~pearance ~ the h~ h.ic re lik_ y t be .... o

yle "ers and ef ich poor . "act some o .... t e oo

a sm ·1 berry ~1 · 1e ether u u ielde ~have~ l r ....

e same riay be said. .... ti1e oo~· · e_., · -;; t:;.·cins.'

n com~aring · ometr·c l co s ts , L .:. ...,h11y

disco ..... e_e· th t ro.ct·cal y tne sa e means d co lc.i. uts

corre: tion were obt ine \hother t.e lants or the culms re

consl ere uS the unit . his discove1· as e

.. i com· • • ,,_ " 'l.a i· t · c l metn· l.1 .t1 S S 11U y 0 v

T' e co ~~-~ ie ts of variab.i. · t- ad stan · . d

"ndicated consLstent y a ~r moun e t

culms ere use as the unit . ~i~fer nces ·n corre- t~ n c e ~-

icients may resu t from tie use o" ~if erent v rietie • c

arisen o ats ro n in i an dr·11s sho ie no rad.i.c l

~ :L~erence of correlat · on~ for th · o met o~s of la.nt· :Io -

e er , some r Vier 1 rge dif ~e ... ences d.id occu~ ·n so e •

!!:' e effec ·~ o di..C ercnt de re s o.Z c owd · -~ duced

- 4. -

stri in0 <lifferences in t e corr lation bet 001 ce t in c aractors

o plants int e sa e pure line o o t • Lo est corr 1 t · ons re

found ~hen lo st crow e d a. e e t e most cro

Oievcr, exceptions occur~e • ron t e abo·e ac s v e invest·ga-

tor concludes t at diffe:·ences i correlation e to d · erent

cond.i tions o:: ro :t· may amo nt -'vo ore ha an di ferences ue

o varieties .

Hutcheson (4) e ... -oyin_ t e bio etric 1 et o in d

of oats faun t at hea-ier seed rod ced t ller, stro er d

b:·o er eaf e la ts , d t ... .... is .. e of 1 ts ro uce t e

lar est yields of and stra • ro correlatio c ste et e

..... e average eight of see lantc an t e vcr t 0

·ve te r:'I s in~ic t t t it in 0 . store in t e e ~asper is of more im ort i rit ce .

vitz (_7 i an e eri e t . t d 1 ct

m, d smal~ seed o ea.c t e care ls

s .... 1·in ···· eat d · nte:.· eat , f und ct rel

size of see an yield ; also that 1 r est s e ro ce

ea.vie st kerne s .

I ro~ed ric oat so .. n.r ... d b ... u i

ccordi il . e. s lton (1 } i i

t e Ull fo:. 8.i • rie ~ r te 0 s e i 0

cti ·el in a ·01· of t e 1 r e over e s s e ~. t· e

scree ed a 1 T"'O see ·ttle diffe:e • · s e ..

rnent as car1ied t ruout ... erlo ~ o ne ears t e results

are t e u-era_e .or t at time . e sa i e t· oors ( 1 s

rated ··it a ac ne elvet haf~ n ... er hea · 1to t·ree

- 5 -

e: t ' ..,..,c d ,

...

. , " '"' - s no a preci c

- .... , 7

l'r m . e t de er e a

i co e e

.... ac .:.c _:y no d·r ti tJ

a e ::ul J. u .....

o.: _i , t~ t · eav · st · ee

c e e • .... .i.m.:._ r c er

ts c rr.:. ... d on ~or er.:.o o t " r- c ·c 11 J.

I •

re l s .. ere · necl •

· t t • c :: rs ...,t .... t i-- ( "' ..;

rate "' .i.t.1. t"e "' :i. to t oe ~r

an c o d et

h av es • uL the eac·

acre the :i.i _. · t ad • _ e o .... r t

come "'ro e t res· er.

. --. ...... l ron ..... J .i..n a i.. .. tic _ t 0

er ... iel"' con · i o· ' ai d

t· n b t. 100 er ..... e e 0 n ub ~ ctive ~n e c· o

11 n c' ar c er i·e n ber o erne _ r e

"' head L

"' cul .i.ncludin _en t• o

0 er ords lan s"1orter c s , ·.orte_ · eads

ler n . r 0 "' .... rai . . o"' ced th

r a ter v rt.i.._.e i l so fo um: r to b

0 mo var.:.able o t· e c ar cter ~ ua.:.cd .

- Q -

J ·,.inson / ~ el.., "1t s"" r · ..... · hea

Pringles _amp"on , ....... rq .:. .... , ube a ,

~!UL S te. 15. , rt Tr~men.:.a , seoure a hi h sit e c rr -

- 1.1 o oc rnei.. average 1 i, ... : .. t o,. kor els , .. . . t am

""o .... .i..t..'..ve corre:ati b t·ee v !' eiu" t 0 or

0,. . l" ls , vera .... kex d :e cul t 'ot 1

o: ''"er els al • tive

c rre_ati n between to l 1e . t 0 , rnels . number 0 r i-A

m~ tar s 4 · ~elets .

o "Ii he

·1:eyers ':. uo ducted an investiga.t · _th av r.:. t soil

o et ... rmi e the · u ..... :u.ence ;/ f rt" l" "1.1 co r 1 "i

anci v r .i.. ab · l · J • CO C- s.:. .e c t1 t i c tili"

ecreaseu vari oilit an lso amount o; c rr _

~Ls ' iom tr'c 1 t · .:.e

wheat re le" c r el ti 1

ns . number of cul nd lso culm le th

.; ..... ~ tle varia ion occurred n the le:'·te over t · •

A e sh. tl correl t:on un e c lm

" cul ... er 1 an· · ot· c _

- e h nd number o: r in •

- 7 -

The aim oft is in~stigatlon as pri rily to study

t e influence of t e amo· t o endosper in e e t crnel on

uhe resultant plant r ather than "' o study · is rel io s it

manlfeste in -• c partic lar ·sriet considered. ro i vi

point it bcco es o vlous that t · e ·a.rio·s cl se o se o.ccor -

ing to t e individual eig· t of t e e ·nels pl n ed 0 1 co t in

e.p_ roxi,. a"' ely equal n inbers . In correl tio .e or

exam_ le. ... _ ll 70Uld hardl be i .• e enc.,. 0

4 coming from the 12 mill "gra seeds it cl 0

lO n from t e 43 millig1· se ds . :.i: er ore e rs

er selecte "',,;o rep1e ent each cla. a "'o

c -· · te:· is a re 0 is 1 ilit 0 be er c·sed

co cl sions ·.011-· on 0 Si 0 0 or 0

co sideri fl ctu tio 8 i1 t e sL .. of er

-· .. 0 ri tions in size 0 t e l ttcr ""'r 11 co r

0 t e e os ... er . hence , the :?."Ob li 0 ror ro '

i not rea -.

Tho lO ing se SOI of 1.16 0 1

stu .... 0 t· e .1.ollo e t Cl 0 r

b re '!"D.inf 11 ~ ri r·1

u re or

t 0 nor a . · 1 e an - 1 elo

1 · 0 e de·· at · on . ri- e

e rees cool the. the aver e ile ul as a. 0 t

grees armer , a ra er broad d- ference t s ex i et ee

e •

- 8 -

D

table ~reci i ·ation in the vicinity o

St. Paul , during t ie e:ro .,..t· 11 s as on o 1 ,,. .....v ,

191- rrormal* ev· ti on :.1..ches L1ches Inches

A ril .> . 03 2 . 5 + . 53 1 . 2 .. ,, ~ r . 89 3.3 +2 . 5 78 . 48 June 3 . 79 _. 4 - • l ..... 3 . 86 July . 75 3 . ~ - 2 . 85 7 . 1-ueust 3 . 365 3 .45 - .085 2.46

A tab:e s· o ng t e mean te 1 er t -e of c ro

season of 1 1 - com. :·e .it t e normal , 873 to 1 03 .

ril 43 . 8 48. -4.2 ·-ay 5o. - o. -3.4 June 62 . 7

~ ~ -;.).

July 7 • 2 74 • +4 . 2 ust 60 . 32 2 . -1. 8

.e no:inal re pre e ts avor .... ue of Dl ye r • 1873 0 03.

T e soil on hich the eet ts ere ro is

as cm. s ead s·1t lo rn by t e nit 'Jt tc oil 1·ve . t e of soil is desc::.·ibed as foll ~, "T e s ce oil o

e pstead silt loa. consists o ..... .1110 18 c . 8 0 1 c

to r· - r n silt :o '"ncierlai1 b a s soil con i 0

bro m to el o~.is -br m si-L cla to si~ .. cla lo

ex·en s to a depth of abo t 3 fee .•••• -~·o et of ro d

0

.! t r .:.s res. ... on o:y .fr , but nev rt olc , e r -

.:.r. .... q a_it.:.es ap ear to ·e excellent. · e su· "r tum c nsist o

o" rat' er clean ravel a.n · sun . . . • ~· e pr ... 0

lim tone ori..., · n is small.n r' iculc.;.r 1 u ... e

I: ir t To;.. r ... -u. c .:.011.

r u.:. 1Leat s ted a:' J • Ce tr lt

_arm, vtta m ' c ci.a ' 1J r. ' >J ..... und rs. I-' . 0 t• e . ... .

tJ!'es he :pr uce b cros ·no •. ed .:.fe a_e rd . d

'Ja.lcutt ~n 03 sev ral 0 t:ile resu_t ' r - lt

selec e on hi· gluten· si an ono o" tho~e

n med ~ ... ms ... r t m se11ara te 1 .L 4.. - . n ·L. · s ex ... eri en a t en r re ..... r

vari... ·t,y • :hlch has lice ...., o :n "o rio- u r

· i ver .... .:. ~lt F rm.

Du i d 650 r1el . r

· d'v.i. u 1 e h to th ec l .i; l c

see s 11ic1 range ·"rom 12 to 4., a l

.ere pl ced ·n separate envelo_e re

n ........ ,. ei0 • ts reco-·e . bo"h on t• en e_ ... e v v

ok. .I:! a su •• -e t r e .... e .:.ment on the s .. e

~cc r m .,3 m '

clu -care .. lly e t r : ic

. v cunt 0 e

removed ro e d. · .. "erent berrio m an 0

I edi tely a ter kerz el as u i:w.ltO '

. t s r e

the CUll surf ace coated .:.th raft.:. ·.ax 0 r vent , .,. ... iJ

s· ., - , y ... .:.01 turba t

ces. es seed ere

l cc.._ in enve:.o ... e n · ..... e . .'ei"'' t.., rec or - D. 0 e .

rin .... ee .. r lan e .in II eir c .-.... ec lti ve order a.c ore.:. e ... 0 num· inc e a. a_ t in r

. ch

·rnre se ... ra ·ec y - .:.nc es. s .. e e r _nu t c rr ct

num er res · nserte at the o re~ t.:. ve e .'..d e c'

seed. I. o_d_r o ecu:::-e un co.d.'..t'o s . · - a r

r youn .... vlant die , th s~ a e thu le -t t

b · eat 1 .t t

t' e ... normal ~ceds _lanted , 479 ev _o ... e · in ·o lants

u.:. ta' le for stu ·.. • The ent ·re r>lot urrounde t 10 bor er

ro ·1s o·'" plants of the same var .:.et •

.bout e ec· 'be ~ore h rve s·t · n , .... he c .. 0 - e C iL i

ual er col ec ive_y tau ed .i h their corr ct n mber , e

num· e on the st ·~e. e ...,ai s .:. · 1e l 1

in '1arves i .... . ·.e la ts :er ... u-le ', · n .:.v·du 11

n .. s.r:i ... e n· t'e 0 ~· t I t

ere al o red to h .:.n tl ' or tor unt · l r , - er

.h . ch t ' c everal ' etermin tion re ma

Dat as co-lee e on len~t· o s"'11 cu· , ot

0 c - o a: .ei-'·t 1 t , ot o- e r

cul , nu.· er o~ 'ere: , r

::.i· e ei,_: i 0 s , · o · ~o. ...... e r e er

0 r m ; t: e rme to t o deci 1 ... lac e .

Be_ re t ' e mea ur onts ere ta n , 11 o .hich re e

0 - s v re ' b r e ce t'meters the c ms ere '

'ove t · e oots . .... re s care u_ y do e b e

c lcu tions ece s r t· e ta e ... e d ne n a

- 1 ... -

•

- .... , t .. .. _ .... e ·1..de it · e cor 1 t ·

un·er c nsiderat· n , · t s "' t• e ... · t:

10 .. as "incl.in "ght be ue to "nheren· u

r~t· er t n t• c endosJ.. e m. · table s .. hr

see te sub~ect:ve an aver ~e ie ' ~ht o ~ 'er ls

rel t.ive. co:·relation .. a.. oun· . t' er

- ~~c ... "'an e· did no determi e · e size o;

.... o e ... u· lis· e.. · at ... of e. ri ent

toe' c r ·ea o ·n 1 ..... - a.n

" in t' e s e lac correlation bet e

a ave:. rei~ht o "' ·ernels ... ro' ce •

t' o.t e "Sarquis orked e line,

.: ic· ... roduce on., y lum... ernel el ct

or i~ t o seed lantcd correl i

be "ore no c a. "'oun t • c 0

n' eel an.. t· e aver . . ~ .1. ._,

.. .... c d .

co c u ive ev "de ce o; J.. ure i· e , 0

0 r 1 cone r e • c • : t:o r

... " . e r ..... 1 .. · ue to cnvi t - c s--

e er . ... ile i" true

- era absolu e

-Y, · e/v r· tio oc t

0 0 o r •

I . c' , 0 l t " ur:

. , . - " a .. L.I • 0 n "'.,

u...l...L t' c c t t mi

1

i ... :

· ced

L ..

i ...

1·

t') ~ IO CD t'- a:> 0) 0 r-1 "2 ~ ~ LO ~ r:-- a:> O'I 0 r-1

"'"' ..-i ,..... r-i r-1 ..-i "2 "2 "2 "2 "2 "2 "2 "2 "2 "2 t')

11- 13 1 1 2 3 1 5 7 4 2 3 29 13- 15 3 1 3 9 4 8 2 2 32 15- 17 1 1 :.; l 3 5 3 5 10 32 17- 19 l 3 4 2 6 7 6 2 1 32 19- 21 1 3 4 5 5 4 2 1 25 21 - 23 l 1 2 4 4 6 9 2 2 1 32 23- 25 2 1 6 7 5 7 1 3 32 25- 2? 1 2 3 3 8 ? 5 1 2 32 27 - 29 1 2 5 4 ? 7 3 2 1 32 29 - 31 • l 9 7 6 3 26 :;1 - 33 1 2 2 2 4 3 5 19 33- 35 1 1 2 1 6 7 7 1 1 1 28 35- 37 1 2 3 7 9 9 1 32 37 - 39 1 1 6 6 6 7 2 2 l 32 39 - 41 1 4 6 4 5 5 5 2 32 41-43 2 1 2 2 6 9 5 4 l 32

l 1 2 3 2 8 17 30 48 85 103 91 60 15 12 1 479

Tab le I. Weight of seed plnnted, subjective Aver e ei ht of kernels in milligr m~ . relative Coeff icie n t of correla.tio : . 013 j_.03/

11-13 13-15 15-1? l? - 19 19-21 21-23 23 - 25 25- 2? 2? - 29 29 - 31 31- 33 33- ?!5 35- 37 37- 39 39 - 41 41- 43

1 1 1 2 1 1 1

1 1 1 1 1 2 1

2 1

2 1 1 1

2 2 2 3

1 2 1 3 3 1 1 2

1 2

2 1 2 1 1 2 2 1 1 1 1

2 3 1

2 2

1 1 2 1 3 l 2 3 2 3 1

2

1

1 1

l l

1

1

1

1

6 7 5 9 ? 4 4 ? 6 6 4 ? 6

10 10

8

l 1 2 6 15 25 25 20 ? 4 106

T ble II . eight of seed in milligrams , subjective Avera e ei t of plump kernels ir millip,rams , relative . Coeffi~i t of correl tion . 018• ±· 063

Table III.

A table ehowing the correl~tion coefficients, standard deviations, means and coefficients of variability of the characte~ studied.

Relatives

Wt. of individual kernels, mg. (4?9) Total length of spikes, cm. Average length of spikes, mm. Length of tallest culm at maturity, cm. Average length of culme, cm. Total length of culme, cm. Total weight of plant, cg. Weight of kernels or yield, cg. Av. weight of kernels per plant , mg. Weight of stra , cg. Number of kernels per plant N\imber of culme

*Light ee d, mg. (214) 1 ~eight of kern le or yield, cg.

'*Heavy seed, mg. (233)l /eight of kernels or yield, cg.

ei rt of individu 1 kernels hich produced only lump kernele, mg.

(106)1 AverPe weight of

Cut ee d, mg. ei ht of kern~l

Sucjectiv •

Yi~:r1 rn is. m •

or yi ld , c •

1 umb r of 1 n

Coefficient of

Correlation

.412 t. .026

.158 l:. .030

.292 ±. .028

.176 t. .o~o

.410 + .026

.399 ;: .026

.433 + .025

.013 !:. o:n

.360 + .02?

.459 ±. .024

.391 ±. .026

.368 .±. .040

.l ? ±. .043

-.o ±. .06

-.108 t. . 052

11tud1 d.

standard Deviation

9.36.t .204 6.64.t. .145 ?.40.t .161 5.19+ .113 6.54'+ .142

71.ll+l.549 153.88+3.353

57.oe:t1.244 2.16+ .04?

97.81:±:2.1~1 22.00+ .480

.?a+ .017 4.01+ .131

4?.75±:1.557 4.6?.:t, .146

55.29.±.1.728

9.69.±. .449 l. 6?.:t, • 077 2.~0.t .086

43.15t,l.607

ean Coefficient

of Variability

26.96+ .288 21.09;" .205 79.33:; .228 91.57'+ .160 85.lOt .202

227.51+'2.192 4?9.18:;4.742 172.99+1.759

24.71; .066 309.67±:3.014

69.15+ .678 2.66+" .024

18.02i .185 154.44+2.202

35.31± .206 194.05.±.2.444

27.96±. .634 25.5?.l, .109 17.16+ .121

142.0?i2.273

34. 70• .842 31.49.:t, .751 9.33+ .203 5.67; .124 ?.set: .167

31.26±. .745 32.11.±. .769 32.99i .?93 8.73+ .190

32.37,t .?75 31.82-. .760 29.51±: .69? 22.28+ .?62 30.92+1.100 13.23.t. .421 28.49.t. .960

34.63,!_l.?86 6.54+ .303

13.42:t: .509 30.3?.±.1.231

ar· atior::s -

'Lsin coe ~.:.c.: l t o " v ia." · _.:. t 0

c'arccters st died, i _hts o :ndiv·dua~ see , C" .. . r .,

._, - • 7 ....,l,. J. • '? "'=- .i il i u' t 0 t 11 ... t

-e ~

.~7+.124 ~11 r a s

0 e "'oun • • .. l e1 ..,., tn O+ . J. -· more t·an t• l'-C imcs as v ie

. ,,.. e v r -0 .33+.203 • ·1 · ch · s to · e e I i i

... t

n o • e ·.at he on t•

C }c"'S t• a.11 n vera le ~t o ... cul

eater r i n t· e e

c .... t:n .. he 1- t• cul

cu_ ,.., • 7 r.; v-. • .!. • , 0 ... ,

.r' -.., 7 · - ·- .:!:. · ,,

o "'· · ernels · rve ·.,e 32 . 9.:!:.· 793 , •

nu ·er o" 'ernels r ... la ·11

2 •• - ... +.~<' J lJ.-- .,. I f

t· e ... um ... · ern

.. e: .... : t o .... · ernels f om th 0

- tter , s' ~·veled ern 1

"rom tne e n thru i · e.· um • erne s , ...... ave a

<.;, "oun '11he ::armer , thu increa.si t coe ..,.,

v ri . , ... .... , e indivi · a_ e · Et. t : · ...... · t s e J._J. ... • '-'

r.i.ed most ti.: • ce ..... s much e.s t1 e ind.ivi a: "'9

r

•

o • e

~-------~~~---------------

c

., ,...

.L • ...,:;i-. 2"' I c

r r

d " ... "ere nee

r. c co

0 ... 9. ,..] .... ~ 7 . r_;_ ro 1

er cl .i. t"1 c e "'fie · en -1 .a ..... r

1 ""o 1,..5 . 1 r ... 1 n . t . e ct t• t J.

_lo 0 t• e at collec.a.e

t · on ai:e ot stri.c com .. a.rs l . in e s •t

ean t

y 0 r

0 el . r

r

. .:.c ... ro e

0 :.I. r

+ • ~ ,_

• -0 ,. c l

e e ._ ec" t 0

nd n c

• .i t• . 0

e .1.

. el · 0 ... "'l n .. 1 .... . ... .!.l ·

,.. t• i ·_ t

s 0 -·- +2 • ... O!: a. l -· ... ct ·v .,

.1..., •

+ .

• •

•

characters , total e · i o· culms ( .41 .2:. • 026) , an~ oig t o

tallest culm ( . 292..:. . 028). ere a~ain , as uas reviously poin·ed

out m1der variation , "·he te.llest culm sec s o rose1 t a ore

stable and trustrort' y character for study an does t e ·er e

length 0.1.. all t e culms . ... ractica 1 · no co-·relation 1as obtaine

bet· en e·~bt of see en average eigh· of erne s _ro uce

( . 013.:_ .031) , a condition ' · c i to e expected ir:. pure line .

_rom the above facts the conclusion follo s , th :Cor so c years

an 01 soils of ord.i.1ary fertility fow.1f in this locality, ·eight

of individual cernels of uis nheat _lanted , as desc··ibe a ove ,

has a deci ed influence on ··esul"11ant yield .

ables I to IV resent he data ~rom hich these co -

clusions are erived.

- 21 -

r-i ~ r-- 0 t':> q) ()) C\l 10 co r-i ~ IO co r-4 r-1 r-i C'J C'J C\l C\2 t':> t<> ti) ~ ~ I • • • I • • I I • • • • • C\2 IO co r-1 t"- 0 t<> IO ()) C\l tO co r-i r-1 .... r-1 C\2 C\2 C\2 C\2 t<> t4') tQ ~

11-13 2 5 5 10 2 2 3 l 29 13-15 2 2 2 1? 1 4 3 1 I 32 15-1? 2 3 10 4 3 9 1 ' 32 ' l?-19 2 2 9 2 10 6 l 32 19-21 l 5 2 10 ? 25 21-2. 2 1 2 ? 2 4 10 3 1 32 23-25 1 1 8 1 5 11 5 32 25-2? l 2 2 6 1 5 12 3 32 2?-29 2 2 4 2 5 12 2 :; 32 29-31 1 6 4 2 10 2 l 26 31-33 1 1 2 1 :; ? 1 2 1 19

r 33-35 1 4 2 2 5 4 4 3 2 1 28 35-3? l 3 2 5 13 l 3 4 32 3?-39 1 1 1 3 3 16 3 1 3 32 39-41 1 4 6 11 4 4 2 32 41-43 3 5 11 5 4 3 l 32

1 20 18 18 94 29 ?4 146 35 19 18 4 2 1 4?9

able I • ~eight of eeed in milli rams, subjective Total length of spikes in centimeters, relative . Coefficient of correl tion : .412 i-026

0 LO 0 IO LO 0 IO 0 IO 0 IC) 0 IO 0 IO 0 0 r-1 r-l "d' LO IO 'D '° l"- l"- co co O> O> r-1 r-l r-1 r-i

' ' ' ' ' I ' • f • f ' • • I 0 IO 0 IO 0 LO 0 LO 0 IO 0 LO 0 LO 0 "d' ~ LO LO '° '° r:- l"- cc co O> O> 0 0 r-1

r-'I r-i r-1

11-13 4 3 2 10 6 4 29 13-15 2 15 3 8 4 32 15-1? 1 l 1 3 5 10 5 5 1 32 l?-19 3 7 11 ? 3 1 32 19-21 3 6 ? ? 1 l 25 21-23 1 l 2 6 6 12 1 2 1 32 23-25 ? 7 8 7 2 1 32 25-2? 1 2 4 5 10 8 1 1 32 2?-29 1 3 3 4 13 6 2 32 29-31 1 2 6 10 6 1 26 31-33 1 4 5 5 4 19 . 33-35 7 5 9 5 2 28 35-3? 1 2 12 12 5 32 3?-3 Ll 2 1 7 14 5 2 32 39-41 1 8 5 13 3 2 32 41-43 1 l 6 6 11 4 3 32 -

... 1 2 4 ? 2? 85 109 150 70 20 3 l 479

T ble v. Weight of seed in milligr me, subjective A erage length of spikes in millimetere, relative. Coefficient of correlation : .158 ±•030

0 IO 0 IC) I{) 0 IO 0 ll) 0 I{) 0 an 0 0 r-1 r-1 IO "' ~ c-- r-. is co O> O> r-4 rl ..... r-4

I I • • I I I I I ' ' I I 0 IO 0 IO 0 IO 0 I{) 0 IO 0 I{) 0 I{) IO ~ "' r- t'- co co O> O> 0 0 ..... ..... r-1 .....

11-13 1 3 6 10 8 1 29 13-15 1 l 5 14 9 2 32 15-17 1 2 11 14 2 2 32 17-19 1 12 14 5 32 19-21 2 12 8 2 1 25 21-23 1 1 3 7 14 6 32 23-25 1 7 16 7 1 32 25-27 2 1 2 14 10 3 32 27-29 I 2 1 7 13 9 32 29-31 4 14 6 2 26 31-33 1 3 7 8 19 33-35 4 13 7 3 1 28 35-37 4 13 14 1 32 37-39 1 l 3 11 13 2 1 32 39- l l 1 10 12 8 32 41-43 1 l 2 5 14 9 ~

l 1 6 10 26 115 194 109 15 2 479

T ble VI. I/eight of seed in milligrams, subjective Average height of tallest culm in centimeters, relative Coefficient of correlation • .292 ±.·028

11-13 13-15 15-1? 17-19 l -21 21-2 23-25 25-27 27-2 2 -31 31-33 33-3 35-37 3?-39- l

l-1\

N IO

• a:>

1

l

bl

\()

I N IO

1 1

2

0 ...,. co IO ID ID

I I I \() 0 ...,. IO IO \()

1 1

1

1

1

II. ei

0 co N IO 0 co N IO 0 0 0 ~ ~ co a:> co Ct ()) r1 ...... .-l

I • I I I I I I I I co N \() 0 -qo co N \() 0 ..q< IO C'- C'- co a:> a:> 0\ ()) 0 0

rl r-i

1 2 7 8 4 4 2 l 2 7 7 8 5

3 7 6 8 3 3 1 2 3 6 14 5 2 1 5 ? ? 3 2 2 2 6 13 6 1 1 l 2 7 9 6 ? 2 2 6 8 7 5 1 1

l 1 4 5 8 10 3 1 6 7 6 5 1

3 ? 5 1 2 2 7 7 3 7 1

l 3 4 ? 13 4 1 2 5 11 10 2 1 l 6 ? 10 ? 1

1 l 7 9 7 3

4 20 ? 97 1 ? 100 48 6

of seed in milligr me, subjective 1 n th of culm in centim ters, relative

i nt of Corr 1 tion : .176 ±·030

29 32 32 32 25 32 32 32 32 26 19 28 32 32 32 32

479

0 0 0 0 0 0 0 0 0 0 0 0 IO 0 IO 0 l() 0 IO 0 lO 0 r-f r-f C\l C\l lQ lQ ~ ~ lO IO \0 ' ' ' • • • ' ' ' ' ' 0 0 0 <> 0 0 0 0 0 0 0 lO 0 IO <> lO 0 lO 0 lO CD IO ,..... r-i C\l C\l lQ lQ ~ ~ IO l!)

11-13 7 3 13 4 2 29 13-15 4 3 18 5 2 32 15-17 2 1 15 7 7 32 17-19 2 13 8 8 l 32 19-21 8 9 8 25 21-23 3 1 10 5 11 2 32 23-25 2 9 6 15 32 25-27 2 1 9 4 16 32 27-29 4 6 6 13 2 1 32 29-31 l 9 4 10 2 26 31-33 4 1 l 10 3 19 :3 - :35 7 2 9 6 2 1 1 28 35-37 6 4 15 3 4 32 37-39 2 3 4 18 3 2 32 39-41 1 4 8 14 3 2 32 41-43 3 8 12 7 2 _]_g

37 9 131 85 170 32 11 3 1 479

Table VIII. eight of seed in milligrams, subjective Total length of culme in centimers, relative. Coefficient of correlation ~ .410 .t,.025

l 1

11-13 13-15 15-17 17-19 19-21 21-23 23-25 25-27 2?-29 29-31 31-33 33-35 35-37 3?-39 39-41 41-43

0 0 0 tO ri

I I 0 0

tO

1

l

1

1

0 0 0 0 LC) 0 tl) 0 r-i N N ~

I I I I 0 0 0 0 0 tl) 0 I() r-i r-1 N N

2 4 4 2 1 6

1 1 1 3 1 3 1

1 2 l 1 1

1 1 2 1 1

l 1 2

1 1

1 1 2

0 I()

~ I

0 0 ~

4 7 3 2 1 3 5 1 4 l

3 1 1 1

0 0 0 0 0 tO 0 IO 'od' ~ IO IO

I I I I 0 0 0 0 tO 0 tO 0 t') 'od' ~ I()

6 4 2 1 4 ? 3 3 ? 5 5 6 6 5 5 4 9 3 4 4 4 5 3 2 ? 3 4 3 3 6 4 2 3 2 3 4 3 7 6

1 4 5 1 2 4 1 1 5 2 6 2 1 3 ? l 4 4 2 1 2 2 4

0 0 0 0 0 tO 0 tO

"' "' t'- r:--I I I I

0 0 0 0 tO 0 I() 0 tO "' "' t'-

2 1 1 1 1 1 2 1 2 1 5 1 2 2 3 3 1 4 5 2 7 2 4 2

4 1 1 2 1 4 4 2 4 ? 3 3 ? 3 2 2 ? 3 3 3 6 3 5 3

0 0 0 C) IO 0 cp Q) O>

' I 0 0 0 tO 0 tO t'- Q) <X)

1

1

1 3 2

1 1 1 1

0 0 0 IO 0 OI r-i I ' 0 0

0 tO 0) 0)

1

1

0 tO 0 ri

I 0 0 0 r-i

1

29 32 32 32 25 32 32 32 32 26 19 28 32 32 32 ~

l 3 5 11 13 23 3? 44 68 57 63 56 36 29 18 8 1 3 1 1 1 479

Table I • i ht of e ed in milligrams , subjective Total eight of .Pl nt in centigrams, reJ~tive. Coefficient of correlation • .399 ±.026

0 lO 0 IO 0 lO lO 0 IO IO 0 IO 0 IO 0 C\2 IO f:"o- 0 C\2 l:'- 0 C\2 l:'- 0 C\2 IO l:'- .-I .-I .-I .-I C\2 C\2 C\2 ~ ~ ~ ~

• • • • • • • • • • • • • • 0 IC) 0 IO 0 lO 0 IO 0 0 IC) 0 0 IO C\2 IO l:'- 0 C\2 t.O l:'- 0 lO l:'- 0 IO l:'-

11-13 2 2 8 6 7 1 1 2 29 13-15 2 5 9 6 5 3 1 1 32 15-17 l l 2 4 6 10 5 2 1 32 17-19 4 2 8 8 5 3 1 1 32 19-21 1 6 10 4 4 25 21-23 1 2 2 5 5 4 6 4 1 2 32 23-25 l 4 6 5 6 3 5 1 1 32 25-27 1 2 3 2 9 3 8 4 32 2?-29 2 l 3 5 3 2 10 4 2 32

l 2 31 l 7 4 10 1 3 26 ) 31-33 l l 2 3 6 2 2 2 19

33-30 2 l 4 6 5 3 4 2 l 28 35-37 l 1 3 3 7 ? 6 2 2 32 37-39 l 2 l 3 8 7 5 2 3 32 39-41 1 1 1 1 6 4 9 3 4 1 1 32 41-43 1 2 3 3 4 8 3 5 1 2 ~

l 8 12 2>1 42 6? 81 80 76 42 24 8 5 1 l 479

T ble X. eight of eeed in milligrams, subjective Yield of plant in centigrams, relRtive. Coefficient of carrel tion • .433 i.025

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 tt;) l'- .-4 IC) ()) tQ l'- rl IO ()) tQ l'- .-4 IO ())

10 ()) r-i rl ('J C\l C\l tt;) t') .qt ~ ~ IO IO <D ({) ({)

• • • • • • • • • • • • • • • • • 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 .-4 IC) ()) t') t'- .-4 IC) en tQ ~ rl IO en t') ~ .-4 IO

rl ..-1 C\l C\l C\l t') t') ~ .qt "'24 IO IO ({) '° 11-13 2 4 6 4 8 2 l 2 29 13-15 2 1 9 5 6 6 1 1 1 32 15-17 2 1 5 4 6 ? 4 2 1 32 l?-19 2 2 7 7 5 7 1 1 32 1 -21 1 :3 10 5 4 2 25 21-2:3 l 1 2 3 5 4 5 6 2 1 2 32 23-25 1 4 3 6 5 4 :3 4 1 1 32 25-27 1 1 3 2 5 5 4 9 2 32 27-29 2 1 :; 2 5 2 :; ? 4 3 32 29-31 1 5 ~ 7 6 2 2 26 :31-:33 1 2 1 1 5 4 2 2 1 19 33-35 1 3 1 5 4 5 2 5 1 l 28

35-3? 1 3 2 7 9 3 4 1 2 32

37-39 1 1 l 1 3 3 11 4 3 2 2 32 3 -41 1 2 1 4 5 4 6 4 3 1 1 32 41-43 1 2 1 2 3 6 6 6 2 2 l 32

1 6 12 16 41 49 ?:3 ?7 78 55 :37 21 8 :3 1 1 479

Table XI. eight of s ed in milligrams. eubjective Weight of str8W in centigrams. rel e.tive . Coeffici nt of correlRtion : • 360' ,:t..021

r .)

11-13 13-15 15-17 l?-19 19-21 21-23 23-25 25-27 27-29 29-31 21-33 33-35 35-37 37-39 39-41 41-43

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 r-1 C\2 tQ .qo 10 C\l tQ ~ IO co 1:-- Cl) ()) r-1 r-1 r-1 r-1 r-1 r-1 ' • ' I I I ' ' ' ' ' ' ' ' 0 0 0 0 0 0 0 0 0 0 0 0 0 0 r-1 C\l tQ ~ tn co l:'-- Cl) ()} 0 r-1 C\l rt) -.:!' r-1 r-1 r-1 r-1 r-1

4 7 5 8 2 1 2 3 4 8 9 3 3 2 2 1 6 8 5 7 3

3 3 9 4 11 1 l 2 5 9 7 2

l l 2 4 4 3 9 5 2 l 1 5 5 4 7 7 3 l l 5 4 4 8 8 1

1 2 3 3 5 4 8 3 2 1 1 7 4 8 5 1

1 1 2 1 2 6 3 1 1 1 2 2 4 3 6 4 3 2 l l 2 2 3 ? 10 3 3 l l

.1 1 1 2 14 7 3 2 1 1 2 1 2 8 7 9 2

1 2 3 ? 7 6 3 2 l

5 19 21 48 70 57 110 83 36 15 9 2 1

T ble XII. eieht of seed in milligrams, subjective W ight of kernels in milligrams, relative. Coefficient of correl~tion .459 ~.024 '

29 32 32 32 25 32 32 32 32 26 19 28 32 32 32 ~

4?9

11-13 13-15 15-17 17-19 19-21 21-23 23-25 25-27 27-29 29-31 31-33 33-35 35-37 37-39 39-41 41-43

7 16 6 4 20 8 2 15 15 2 13 16

8 17 3 11 16 2 9 21 3 9 20 4 6 19 1 10 13 4 1 11

6 11 6 19

2 4 21 1 4 21 3 20

38 138 254

1

2

3 2 3 9 7 5 4 9

45

2

2

29 32 32 32 25 32 32 32 32 26 19 28 32 32 32 ~

4 479

Table XIII. Weight of e d in milligrams, eubjectiv Number of culm , rel tive. Coefficient of corr 1 tion =· 91 ±•026

CE

T ... t -C~r t

r la d ... e •.

~or eac . t co t ct-.,

d. 0 e ut t• e re. enc cl r

se s • ov b lo c. .....

c rr 1 ti :c r l

.. ~e ,.. .

• • "' t . c

( .1 7 r

r t e

r . ., ~ i r ... •

r , -_ J. t

0 e

r res i c t I

s c c n r. r r

., . d.

ur

r 1 t.:. r

0 ,...,. c

. , 0 ... .. r _

e 0 d ro

r

cl

cl s . elder

cl .... i __ o

0 10 0 LO 0 IQ 0 IO 0 IQ 0 IO 0 C\l IO C"- 0 C\l IQ c-- 0 C\l IO C"- .... .... .... rl "2 C\l C\2 C\2 tQ t I t t I • • t I I t • 0 IO 0 IO 0 IO 0 !() 0 IO 0 LO

C\l LO t"- 0 C\l LO t"- 0 C\l IO t"-rl r-1 r-f rl C\l C\l C\2 "2

11-13 2 2 8 6 7 1 1 2 29 13-15 2 5 9 6 5 3 1 1 32 15-17 l 1 2 4 6 10 5 2 1 32 17-19 4 2 8 8 5 3 l l 32 19-21 l 6 10 4 4 25 21-23 1 2 2 5 5 4 6 4 l 2 22 23-25 1 4 6 5 6 3 5 l 1 _g

4 8 22 30 44 43 30 19 9 3 2 214

Table XIV. Wei ght of seed in milligr~me. subjective

27-29 29-31 31-33 33-35 35-37 37-39 39-41 41-43

Yield in centi grams , relative. Coeffici n t of correlation • .368 t•OfO Light Seed.

0 IC) 0 LO 0 IO 0 C\I 10 C\2 LO ~ r-i r-f r-1 I I t t t t OIOOIOOIO

C\l IO t"- 0 C\l .... ....

2 l 3 5 l 7

1 l 2 2 l

l l 3 l 2 1

1 l 1 1 1 2 3

IOOIOO IOO IOO r- 0 C\2 IO t"- 0 C\2 10 .... C\2 "2 C\2 C\l t') t') ~ It t I I It t Oi.00IO010010 IO t"- 0 C\l LO l:'- 0 C\2 r-1 .... C\2 C\l "2 C\2 ct:> ct:>

3 2 10 4 2 4 10 1 3 3 6 2 2 2 4 6 5 3 4 2 3 7 ? 6 2 2 3 8 7 5 2 3 6 4 9 3 4 1 1 3 4 8 3 5 1 2

1

22 26 19 28 32 32 32 ~

1 3 4 7 9 21 29 47 49 29 21 6 5 l l 233

Table XV. eight of e ed in milligram , eubjecti e Yield in centigr~me, rel tiv • Coeffici nt of carrel tion : .187 t.043 Heavy Seed.

t 1 t r

i y r .

c is i er 0 r

l •

t

• l 1 •

•

-· 1 •

•

•

•

1 •

•

... .

... .

.... .

CUT S~""' •

I orgru1izin an carrying out th"s cut seed investi

tion as 1as been described, it ~as ho ed that more light mi t

"oe t .1·0·:.n on the influence of endospe1·m on the follo · ng genera­

tion. The result '!as more or less of a dis )poi tment . ...erhaps,

by remo-ring portiOLS of the e· dos rm , subsequent ysiolo ice.l

disturba1ces \ere in uced ins_ ·te of~ e f ct e ery .recautio

ms ta -en to re vent the same . rac"' ic 11 s

.:'ound bet ec l .ei ht of utilo.ted seed and re 1 .... nt yield.

It a~ be of interest to .oint out th t of t'o 198 ec s

planted , 164 gre 1 or little o~-e1· 82, • The vi tali t of the seed

seems not to 'a ·e ee:1 ma.te~·ially in~ :;.· .. by t o. ratio •

In as m· ch s t•e nos e~m serve ri rily s 00

sup_ly consistin of stare· p_otei an

plant ... un11 ... J. becor.;e s ca.able 0 indep n e t n tr· ·o i 0

seem ... ... b • rerno-vint ortions 0 IJ " .. "' is 00 su_pl the oun pl

7Clld be hindered J. it e r:. ro th an 1 s t . s p

overcome 1 "'uer, the yield oul 1 . el be reduce I

an ___ rr 0 not veri s c n e .ect t · o co sis i -

crease i l .yield .... 1 ncre ed size of c t seed l nt s 0 -"' T com "Till"'" e riel s 0 t d or 1 ee -

.... ble .. :vIII) it il e no"' ice ... t ro t e or r

u ... 0 t e 17 mi li re.om cl SS 0 tyiel e t l s ro t

_his a ai a in t e lig t an e .. seed . eem 0 t t

o es . cut seed e h · n~ l m·11igr s c t i s ore av ilable

- 37 -

t

l •

t

plan· oocl :for t '1e yo •ng p ant than a nor al c o t e a. e

1ei ht , becalSC the lat er as a 1 r er rel tivc proporti on o

testa .

::1a.ble XL~ presents e · eig .ts of t e eed before va1·i ou

amounts of endosperm 1as remo vod . In general t e eavier seeds

yiel ed slightly more tie.n e li~hter ones .

e t'1ree fo llo ing tables also oi t out t e os ibili t

of size of erm havin S0..)3 in luence on the res ltant y · c1d .

AS a 7hole , ~-· e d a a.ssem"led rom .... is a e oft

in-estigation is inco ~ete an no s icie t to r_an

e initc conclusions. ~ch o_e data is needed . To the riter ,

i seerr.s , cut seed ex rimen~~ of the ut ·e may be im rove b

selectin seeds o the same i e tic 1 1ei~ ts o ly , an .... en re ­

moving v rious ortions of the en os.erm. Then too , incro si

t e ~a.n e in t e amounts of en · osp rm cut o f t e a i -

pro-Ye en .... ..

- 37a -

~ 1 •

c

e t r ..L ~ee

v . • . .., . -. 0 nt r:;

• r ... 1 . - 7 • 1 l . • •

1 • •

··o. l 2_

·1 r 1.-~Gl . - l"' 1 . ,..7 -· 1 .

d 1 .,

c • ... • • t) l ~ 21

1 . l . ... • •

d "' . .... .

•

• t -· •

.... . .....

..... ' le

r

v ...... u

.i....~

• ... .3 ..., 1 • ..,

,.. ,,. • -· -

3

,... ~ ~ l. "'3 • ...

• 18 -· .o 1 . 3

. 03 -· 7

• ... 1 1 •

• 1 •

,.., 1 . 2 •

• _3 : 4 -· .o 5 -·

... 1 • •

12 13 14 15 16 17 18 19 20 21 22

IO 0 (\l IO

• • 0 IO (\l

1

1

2

IO c­

t 0 IO

1

l 1

2

1 3

0 IO 0 (\l ..... ..... • • LO 0

r-- 0 .......

1 1 1 1 3 2 4 5 2 5

5 2 7 1 ? l 2

0 IO .......

' IO N r-4

2 2 3 1 7 6 ? 2

1

IO C­M

• 0 IO .......

1 3 6 4 3 ? 2 2 1 2

0 IO 0 (\l N C'2 ' . IO 0 c- 0 r-1 (\l

1 1 1 2 1 4 2 ? l 2 1 4 2 2 3 2 l

1

9 15 35 31 31 2? 11

OIOOIOO 10 IO r-- 0 (\l 10 r--(\l (\l l:Q l:Q l:Q l:Q . . ' . . ' IOOIOOIO 0 (\l IO c- 0 (\l U) (\l (\l N l:Q l'l tn

1

2

Tabl XX. ei ht of cut eeed, in milligrAme, subjective Yield of pl nt in centimeters, re,ative. Coefficient of correl tion : •108 f..052

4 5

12 21 25 22 24 21 21

5 4

164

C Q_ L rs Io.; .

1 . A pu1·e line o ·.rarq· is ieat ilO.S st. died to etermine

t e possible influence that si~e of endosper~ may have on t e

succeedin- eneration.

2 . f t e characters studie ei ht of ello t c m uas

least variable and 1eight of indi~i ual seed planted most a.·able .

Bet ;ee11 these extremes all radatior.:s of aria· ili t 'le ·e ound .

Standar deviation 01· coef icient, 01· varia ili ty considered alone ,

as an index , may be mislea<.ling . _his is uell · 11ustr ted by com-

pariu these constants for numbe1· of , ernels i·oduce · t number

of cul s er plant.

3. ~he mean of tie talle t cul as co siderebly great r

t an J1.1'-e mean of t• e averaue length o c· s , t iis ct

1".ri t t' e egree o · iat·on oun n eac in ic tes th t 0

tillers ~ c ... uato more t•a.n t• e ri ary c 1 sin He c

e latte is a 0. stabl cri ... erio 0 co ris .. 4. m e eig t of in · ·idual ernels lante 6 0 -

·ave a ... os'tiv in l·e1ce o ·01 '

t e tot 1 ler. t 0 s i es ,

t.he total lengt 0 cul s , ... e tot 1 e t 0 l ' t e n r

0 cul a , t'1e n· be::.. of er els , .l. e e ht 0£ str an to a

Sl'g ly less ho ei .l. of le c 0 in ie co c r c on I.I

on the a ·e:-cage le t•1 o s. ikes ru d the ver e 1 n t· o c , s

as small . p· e cor.i ·· tivoly i h osi ti e correlatio s a ve

been to soil an cl· tic con · ions .

5 . - e rela .. i· e i· . orta ce o ena.'os ~"'""'rm as f r as pi_an v l"""' ' '

p:o uc ion is conce~ · , is ~ea er in li t seeds Lh i eavy

- 41 -

ones .

6 • • o relati on vas fom1d ctITee ei t o seed pl ed

an average :reig1 t o :Kernels produced. or ave?' e e -'11 of

plnmp kernels produce • ~r is lac o · relation is in · c ti ve o

a pure l i ne .

- 4

lJ.I.

I .ii::.. .,.,.,_ ' a d -..J... 1 . '-' • _._.,L.l.J._J

' •

r.:ar ... uis .. cat . :.nno " t ~ul etin 137 . (1913)

( I ..U....-..l:J.U.

c . ract r f h at • or ,;J ree "' orn ,

( .... , G n and • v . t ..... v. s at • ti - _ul ... ...,,- .... ....... ( 896

I 'D -I ......

0

or

.. J T T ..i..u;.o.J,. • ......

c rre 0 t ( v s ti I • . Cor e_l v c m .:.r - • 4 . (1914

( 6 ...... .

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: ... - -. · br 125. f f"g i f _t r -

i

at . r . _r ~-74 .

c ..... • ..:J .

(..I. I .... . ... . c rr 1 t•

Breeder r

l_ , ...

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eat e " erime (191 )

"I,. ... O I t ...,r.

(17 , "

....

r r

l

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1 c . 1914)

r.

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