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ARS Home » Southeast Area » Stuttgart, Arkansas » Dale Bumpers National Rice Research Center » Research » Publications at this Location » Publication #424186
Research Project: Broadening and Strengthening the Genetic Base of Rice for Adaptation to a Changing Climate, Crop Production Systems, and Markets

Location: Dale Bumpers National Rice Research Center

Title: Evaluation of long grain advanced breeding lines for genetic tolerance to reduced irrigation

Author
item DEGUZMAN, CHRISTIAN - University Of Arkansas
item Rohila, Jai
item Sookaserm, Tiffany
item SHA, XUEYAN - University Of Arkansas
item MCCARTY, DANNY - University Of Arkansas
item NORTHCUTT, HUNTER - University Of Arkansas
item FURGE, A - University Of Arkansas
item ELLENBURG, HELEN - University Of Arkansas

Submitted to: B. R. Wells Rice Research Studies
Publication Type: Experiment Station
Publication Acceptance Date: 7/6/2025
Publication Date: 8/25/2025
Citation: Deguzman, C.T., Rohila, J.S., Sookaserm, T.B., Sha, X., McCarty, D., Northcutt, H., Furge, A., Ellenburg, H. 2025. Evaluation of long grain advanced breeding lines for genetic tolerance to reduced irrigation. B. R. Wells Arkansas Rice Research Studies 2024. Arkansas Experiment Station Research Series Number 714 pp.31-39. University of Arkansas.

Interpretive Summary:

Technical Abstract: Long grain rice is important in Arkansas agricultural economy because the state ranks first in long-grain rice production in the United States. For some time, Arkansas rice producers wanted to introduce water sustainability without compromising yield and quality. The rice breeders in the State of Arkansas always bred their rice for season-long conventional flood irrigation. There was no preliminary data existed to develop a breeding program for water sustainability in Arkansas. To fill stakeholder’s need, this project was initiated and for the first time we evaluated advanced breeding lines from long grain rice breeding program. In 2024, one hundred entries were evaluated under three irrigation schemes (conventional flood, AWD30, and AWD60). The first-year data revealed that there is variation for grain yield and some useful traits that contributes to grain yield and quality traits such as flag leaf length and head rice yield. The evaluation will be repeated for one more year. The preliminary results show a potential for some promising breeding lines which can be used either directly as male parental line or indirectly as donor of desirable trait to bring water sustainability with profitability to the Arkansas rice production.