April 24, 2020
New Arkansas long-grain rice variety offers high yields, resistance to most blast races
By Fred Miller
U of A System Division of Agriculture
@AgNews479
Fast facts
- Jewel is a new mid-season, long-grain rice variety
- Developed at the Division of Agriculture’s Rice Research and Extension Center
- Jewel is resistant to most known races of rice blast disease
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STUTTGART, Ark. — Jewel, a new mid-season, long-grain rice variety from the University of Arkansas System Division of Agriculture, offers high yields and resistance to most known blast races.
In 14 Arkansas Rice Performance Trials conducted over three years, Jewel averaged 187 bushels per acre, said Karen Moldenhauer, professor and rice breeder for the Arkansas Agricultural Experiment Station, the research arm of the Division of Agriculture. In Uniform Regional Rice Nursery trials in Arkansas during that same period, Jewel yielded an average of 229 bushels per acre.
Those yields compare favorably to LaKast and Roy J rice varieties, and in some cases even with the high-yielding Diamond rice variety, she said.
Maturing about three to four days earlier than Roy J, Jewel reaches 50 percent heading in 87 days, Moldenhauer said. Jewel stands about 37 inches tall and has straw strength similar to Diamond and approaching Roy J, indicating lodging resistance.
Moldenhauer said Jewel has excellent milling yields of 59 percent whole kernels and 71 percent total milled rice, based on three years of Arkansas Rice Performance Trial data.
Jewel contains the Pi-ta and Pi-ks genes for resistance to most of the common races of blast, Moldenhauer said. It is moderately susceptible to sheath blight as well as bacterial panicle blight, much like Roy J.
Moldenhauer said Jewel has good food quality and cooks up in a manner desired by consumers.
Foundation seed for Jewel will be maintained by the Division of Agriculture’s Foundation Seed Program at the Rice Research and Extension Center near Stuttgart. Certified seed will be available to growers in 2021.
Jewel was developed using Rice Grower Checkoff funds administered by the Arkansas Rice Research and Promotion Board.
To learn more about Division of Agriculture research, visit the Arkansas Agricultural Experiment Station website. Follow us on Twitter at @ArkAgResearch and Instagram at ArkAgResearch.
About the Division of Agriculture
The University of Arkansas System Division of Agriculture’s mission is to strengthen agriculture, communities, and families by connecting trusted research to the adoption of best practices. Through the Agricultural Experiment Station and the Cooperative Extension Service, the Division of Agriculture conducts research and extension work within the nation’s historic land grant education system.
The Division of Agriculture is one of 20 entities within the University of Arkansas System. It has offices in all 75 counties in Arkansas and faculty on five system campuses.
Pursuant to 7 CFR § 15.3, the University of Arkansas System Division of Agriculture offers all its Extension and Research programs and services (including employment) without regard to race, color, sex, national origin, religion, age, disability, marital or veteran status, genetic information, sexual preference, pregnancy or any other legally protected status, and is an equal opportunity institution.
Media Contact: Fred Miller
U of A System Division of Agriculture
Arkansas Agricultural Experiment Station
(479) 575-5647
fmiller@uark.edu
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