Moisture deficit stress affects yield and quality in groundnut seeds
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A pot study was carried out using six groundnut cultivars viz. JL 286, TPG 41, HNG 10, GG 20, CSMG 84-1 and GG 11 during Kharif 2011 to find out the influence of moisture deficit stress on yield, seed and oil quality and composition. Prolonged moisture deficit stress reduced pod and fodder yield and oil content, while accumulation of raffinose like oligosaccharides (RFOs) increased in the seeds. Stability of oil (O/L ratio) did not alter significantly due to moisture deficit stress. In general, the Virginia Runner cultivars showed more reduction in yield and other nutritional characters, but accumulated more compatible solutes in terms of RFOs to combat moisture deficit stress, indicating acquisition of tolerant characteristics in this group at the expense of yield and nutritional characters of the seed.
KeywordsGroundnut RFOs Oil content Seed quality Moisture deficit stress
Authors gratefully acknowledge the Director, DGR for providing facilities and technical support from Mr. P.V. Zala and Mr. C.B. Patel for carrying out the experiment.
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