Effect of accelerated aging on vegetable soybean seed vigour and physiological and biochemical changes

1992

REP.SB-1198

The study showed that when vegetable soybean (Glycine max L. Merr.) seeds were treated with accelerated aging process, germinative power, percentage germination and vigor index were rapidly reduced. As the aging time was increased, electrical conductivity, OD280 value and amino acid leakage increased significantly in soaking solution. Amino acids increased not only in quantity but also in their kinds. Peroxidase activity from germinated seed axes was reduced remarkably. When the seed lost viability, peroxidase activity could not be detected. There was no significant change in fatty acid contents of acclerated-aging seeds. There was a rapid reduction in DNA, RNA and protein synthesis procursors absorption in the seed axes. DNA and RNA synthesis rates were also greatly reduced. ABA contents of cotyledon and axis were increased dramatically. [AS]

v.8(3):87-90, ACTA AGRICULTURAE SHANGHAI

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