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ARS Home » Southeast Area » Tifton, Georgia » Crop Genetics and Breeding Research » Research » Publications at this Location » Publication #366797
Research Project: Development of High-Yielding, High-Oleic Peanut Cultivars or Germplasm with Tolerance to Biotic and Abiotic Stresses

Location: Crop Genetics and Breeding Research

Title: Effect of terminal drought on arginine content in peanut genotypes with difference in levels of drought resistance

Author
item ANINBON, C - Khon Kaen University
item JOGLOY, S - Khon Kaen University
item VORASOOT, N - Khon Kaen University
item NUCHADOMRONG, S - Khon Kaen University
item Holbrook, Carl - Corley
item KVIEN, C - University Of Georgia
item PATANOTHAI, A - Khon Kaen University

Submitted to: International Journal of Plant Production
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: 3/4/2019
Publication Date: 3/8/2019
Citation: Aninbon, C., Jogloy, S., Vorasoot, N., Nuchadomrong, S., Holbrook Jr, C.C., Kvien, C., Patanothai, A. 2019. Effect of terminal drought on arginine content in peanut genotypes with difference in levels of drought resistance. International Journal of Plant Production. 13:155-162.

Interpretive Summary: Drought is a problem for peanut production as drought at any growth stage generally reduces pod yield and alters protein and amino acid compositions in kernels. The aim of this work was to examine effects of late season drought on arginine content in kernels of peanut genotypes with different levels of drought tolerance. The results showed that drought increased arginine content in sensitive and resistant genotypes. The variation in arginine content in peanut depended on peanut genotype rather than the level of drought resistance. No correlation between arginine content and drought-resistance physiological traits and pod yield were not found. These findings indicated that arginine content and resistance to terminal drought in a peanut may be improved simultaneously through selection in a breeding program.

Technical Abstract: Drought is a problem for peanut production as drought at any growth stage generally reduces pod yield and alters protein and amino acid compositions in kernels. The aim of this work was to examine effects of terminal drought on arginine content in kernels of peanut genotypes with different levels of drought tolerance. Five peanut genotypes were planted under two water treatments, field capacity (FC) and 1/3 available water (1/3 AW). Arginine content, physiological traits and pod yield were recorded at harvest. The results showed that drought increased arginine content in sensitive and resistant genotypes, and the increase in arginine content was highest in sensitive genotype (Tainan 9). The variation in arginine content in peanut depended on peanut genotype rather than the level of drought resistance. No correlation between arginine content and drought-resistance physiological traits and pod yield were not found. These findings indicated that arginine content and resistance to terminal drought in a peanut may be improved simultaneously through selection in a breeding program.