文献类型：期刊文献

中文题名：小叶锦鸡儿种子超干保存研究

英文题名：Ultra-dry Storage of Caragana microphylla Seed

作者：李庆梅[1] 侯龙鱼[2] 段新芳[3] 刘广全[4] 马风云[2]

第一作者：李庆梅

机构：[1]中国林业科学研究院林业研究所;[2]中国科学院植物研究所;[3]中国林业科学研究院新技术研究所;[4]西北农林科技大学

年份：2009

卷号：24

期号：4

起止页码：93-96

中文期刊名：西北林学院学报

外文期刊名：Journal of Northwest Forestry University

收录：CSTPCD;;北大核心:【北大核心2008】；CSCD:【CSCD_E2011_2012】；

基金：国家"十一五"科技支撑计划专题项目(2006BAD03A0308);国家林业局948项目(2003-4-13)

语种：中文

中文关键词：小叶锦鸡儿;超干保存;相对电导率;脱氢酶活性;α-淀粉酶活性

外文关键词：Caragana microphylla; ultra-drying storage; relative conductivity; dehydrogenase activity; α- amylase activity

分类号：S722.17

摘要：采用硅胶室温干燥法,将陕西吴起县种源小叶锦鸡儿种子含水量由6.7%降至5.5%,4.6%,4.1%和3.7%,对不同含水量小叶锦鸡儿种子发芽势、发芽率、发芽指数、活力指数、相对电导率、脱氢酶活性和α-淀粉酶活性进行测定,并对小叶锦鸡儿种子老化(50℃,30 d)后发芽率和活力及生理生化指标进行测定。结果表明:小叶锦鸡儿种子含水量不低于4.6%时,种子发芽率、脱氢酶活性、α-淀粉酶活性保持在相对较高的水平;超干燥种子抗老化能力强与自然干燥含水量种子无明显差异。试验证明:当含水量不低于4.6%时,利用超干技术保存小叶锦鸡儿种子是可行的。
Caragana microphylla seeds, harvested in Wuqi County, Shaanxi Provance, were dried by silica gel from the moisture content of 6.7 % to 5.5 %, 4.6 %, 4.1% and 3.7 %. The germination potential,germination rate, germination index, vigor index, relative conductivity, activities of dehydrogenase and α-amylase of the seed were measured. After drying the seeds were aged （50 ℃, 30 d）, some physiological indices were measured. The results showed that seed germination rate and viror index maintained at high level when the moisture content was not less than 4.6%. Under aging condition, the germination rate and physiological characteristic of the seeds with ultra-drying treatment decreased less than those of the seed without ultra-drying treatment indicating that ultra-dry storage of C. microphylla seed is feasible.