摘要
采用人工老化方法,在高温高湿(40℃、RH100%)条件下,对小叶锦鸡儿(Caragana microphllaLam.)和柠条锦鸡儿(Caragana korshinskiiKom.)的种子进行劣变处理。同时重点测定和分析生理生化指标。结果表明:高温高湿(40℃,100%RH)人工老化法的最佳处理时间梯度为0、8、16、24、364、8 h。两种供试种子发芽率和发芽指数显著下降(P<0.05);酸性磷酸酯酶活性显著降低(P<0.05),与种子发芽指数呈极显著正相关,是反映其种子质量的敏感指标;可溶性糖泄漏和脂质过氧化,是种子劣变的重要原因。
Studies on the physiological and biochemical changes of Caragana microphlla Lam.and Caragana korshinskii Kom,seeds were carried out using the methods of high temperature and high humidity（40℃,100%RH） accelerating aging.The results showed that the best time grades of high temperature and high humidity artificial aging means is 0 h,8 h,16 h,24 h,36 h and 48 h;the seed germination percentage and germination index descended（P〈0.05）with seed aging.ACP activity,a sensitive index of seed quality,decreased with seed aging（P〈0.05）.Leaching of sugar increased with seed aging,and lipid peroxidation was an important reason for seed deterioration.
出处
《干旱地区农业研究》
CSCD
北大核心
2008年第5期180-184,共5页
Agricultural Research in the Arid Areas
基金
中国农科院基本科研业务创新团队项目(ywf-td-3)
国家“十一五”科技支撑项目(2006BAD01A16)
关键词
人工老化
锦鸡儿
种子
生理生化变化
artificial aging
Caragana Fabr.
seed
physiological and biochemical changes
