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ARS Home » Southeast Area » Stuttgart, Arkansas » Dale Bumpers National Rice Research Center » Research » Publications at this Location » Publication #297934
Title: Generalizations on the use of leaf element concentrations to accelerate improvement of rice grain nutritional quality

Author
item TARPLEY, LEE - Texas Agrilife Research
item CHITTOORI, RATNAPRABHA - Texas A&M University
item Pinson, Shannon
item SALT, DAVID - University Of Aberdeen
item GUERINOT, MARY - Dartmouth College
item COTHREN, TOM - Texas A&M University

Submitted to: ASA-CSSA-SSSA Annual Meeting Abstracts
Publication Type: Abstract Only
Publication Acceptance Date: 10/2/2013
Publication Date: 11/2/2013
Citation: Tarpley, L., Chittoori, R., Pinson, S.R., Salt, D.E., Guerinot, M.L., Cothren, T. 2013. Generalizations on the use of leaf element concentrations to accelerate improvement of rice grain nutritional quality. ASA-CSSA-SSSA Annual Meeting Abstracts. Paper number 78835, Tampa, FL, Nov. 2-6, 2013.

Interpretive Summary:

Technical Abstract: Traditional breeding approaches to develop rice genotypes with improved grain element composition require analyzing grain element concentrations of large numbers of genotypes. This study evaluated if the vegetative phenotype could be used to predict grain concentrations. Results indicate that vegetative-stage leaf concentrations do have potential to be used for indicating genotype grain concentration differences of some elements. As a group, genotypes selected for high grain-cadmium, -cobalt, -molybdenum, and -strontium harvested from flooded field plots, and selected for high grain-cadmium, -molybdenum, -rubidium, and -sulfur from unflooded field plots showed higher leaf-element concentrations as well. These results indicate that leaves harvested at the vegetative stage can be used to evaluate segregating progeny in a breeding program or in diverse germplasm collections to efficiently screen for elevated grain concentrations of some elements.