期刊
INTERNATIONAL JOURNAL OF PLANT PRODUCTION
卷 13, 期 2, 页码 155-162出版社
SPRINGER
DOI: 10.1007/s42106-019-00043-x
关键词
Groundnuts; Amino acids; Water deficit; Drought tolerance; Pod filling stage
类别
资金
- Royal Golden Jubilee Ph.D. program
- Khon Kaen University
- Peanut and Jerusalem Artichoke Improvement for Functional Food Research Group
- Thailand Research Fund (TRF) [RTA 6180002]
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 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.
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