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《Seed》 2011-02
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Effect of Different Storage Condition on Seed Physiology and Chemistry Character and Germination of Jatropha curcas

WEI Xiao-li1,ZHOU Xiao-dong2(1.Forestry College,Guizhou University,Guiyang 550025,China;2.College of Forest Resources and Environment,Nanjing Forestry University,Nanjing 210037,China)  
The seed storage experiment of Jatropha curcas was carried out by designing six kinds of different combinations of temperature and seed moisture(temperature: room temperature,4℃,-5℃.seed moisture:8.7%,4.7%).The physiology and chemistry indexes,germination rate of seed were tested before storage,storaged one month,storaged three months.The results indicated that the seed germination capacity decreased siginficantly with storage time extending.On the one hand,the storage substance of seed hydrolyzed,the protein content decreased and the soluble sugar content increased.On the other hand,the protection enzyme system of seed was destoryed with membrance lipid peroxidation,the SOD activity decreaseded,the MDA content and the generated rate of Superoxide anion free radical increased.Finally,the seed vigor and germination rate of seed declined.Among the six kinds of combinations,the best combination for seed longevity was No.4(temperature 4℃ and seed moisture 4.7%),the second was No.3(temperature 4℃ and seed moisture 8.7%),and the worst combination was No.1(the room temperature and seed moisture 8.7%).The outcome of this study preliminarily indicated that the best storage condition of Jatropha curcas seed was seed moisture 4.7% and temperature 4℃.
【Fund】: 贵州省重大专项课题(黔科合重大专项字(2007)6004-5);; 教育部博士点基金课题(编号:20070657001);; 科技厅攻关课题(黔科合重带帽字(2006)5004)
【CateGory Index】: S565.9
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