Effect of ultra-dry treatment on seed storage of Hedysarum laeve

Abstract

Abstract: The effect of ultra-dry treatment on seed storage of Hedysarum laeve was researched. The seed moisture contents were reduced from 7.900% to 1.829%, 2.921%, 3.460%, or to 4.645% by silica gel, and were then stored at -4℃, at 4℃, at room temperature, or at 45℃. They were tested for physiological and chemical indexes after 12 months. Appropriate ultra-dry treatment enhanced storage effectiveness, increased membrane permeable and activity of SOD, POD, and CAT, but reduced the MDA content of H. laeve seeds. The optimal moisture content for ultra-dry storage was 3.460%. Ultra-drying at room temperature resulted in the same storage effects as treatment at low temperature. Appropriate ultra-dry treatment was therefore an effective conservation measure for H. laeve germplasm resources.

CLC Number:

Q946
S567.01

CHEN Zhi-hong, GU Ji-cheng, LI Xiao-fang, YUN Xu-jiang, GAO Hong-wen. Effect of ultra-dry treatment on seed storage of Hedysarum laeve[J]. Acta Prataculturae Sinica, 2011, 20(1): 148-154.

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