Post on 24-Feb-2016
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Arkansas Rice Variety Program
C.E. Wilson, Jr. Director, RREC /Professor / Extension Rice Agronomist
Arkansas Rice Production
• ~1.5 million acres• Average yield = ~6750 lbs (150 bu/acre)• Produce approx. 48% of all US rice• US produces 1.5% of world supply, but rank 4th in total exports
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General Production Practices
Overview of Arkansas Rice Variety Testing
• Uniform Regional Rice Nursery• Arkansas Rice Performance Trials• On-farm variety testing (Disease Monitoring
Program)• Rice DD50 Program• Variety X Nitrogen Trials
Uniform Regional Rice Nursery
• Multi-state regional project – AR, LA, TX, MS, MO• 200 Entries• Disease ratings• Plant Height, Heading, Grain Yield• Milling Yields• Cooking Quality Analysis
– Chalk, Amylose, Gel Temp• DNA marker profiles
Arkansas Rice Performance Trials
• 100 Entries, 4 maturity groups• 6-8 locations• Disease ratings• Plant Height, Heading, Grain Yield• Milling Yields• Cooking Quality Analysis
– Chalk, Amylose, Gel Temp
Disease Monitoring Program
• 25 Entries• 10-12 locations• Disease ratings• Grain Yield, Milling Yield
Rice DD50 Program• RREC primary location
– 4 seeding dates annually– 18-20 cultivars– Measure for PD, 50% Hdg– Yield & milling yield
• Measurements for 50% heading, yield, and milling yield
Rice V X N Studies• 3-4 locations annually
– RREC, Pine Tree, NEREC, SEREC• 3 years• All new cultivars• 6 N rates
Thank you!