The Physiological Mechanisam Study of Ultradrying and Aging Sunflower Seeds During Germinating

doi:10.7668/hbnxb.2008.04.038

Abstract

Abstract: he physiolygical mechamisam study of ultradrying and aging sunflower seeds during germinating showed that fresh weight,germination percent,germination index and vigor indexof ultradried sunflower seeds were significant dif- ferent from ultradried after being aged;the ultradrying storage helped to keep the vigor of sunflower seeds and especially all indexes of ultradried sunflower seeds(MC = 2. 08 %)were improved most. With the germinatingof seeds,the content of heat-stable proteins decreased;MDA content of ultra-dried sunflower seeds were lower than that of unultradried ones;anti- oxidation enzyme systemof the seeds(MC = 2. 08 %)retained best,which alleviated or prevented the process of the super- oxidation of the inner membrane lipids started by active oxygen,avoided the harm to membrane system,ensured that seeds germinated smoothly.

Key words: Sunflower, Seed, Moisture content(MC), Ultradrying, Accelerated aging, Bourgeon, Heat 2 stable proteins, MDA, Anti 2 oxidation enzymes

CLC Number:

S565.5041

KONG De-zheng, TIAN Yun-fang, CAO Yan-ling, LIU Yi-ping. The Physiological Mechanisam Study of Ultradrying and Aging Sunflower Seeds During Germinating[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2008, 23(4): 168-171. doi: 10.7668/hbnxb.2008.04.038.

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