| 王赞,那潼,李源,刘大林,高洪文.锦鸡儿种子劣变过程中生理生化特性的研究[J].干旱地区农业研究,2008,(5):180~184 |
| 锦鸡儿种子劣变过程中生理生化特性的研究 |
| Physiological and biochemical study on Caragana species seeds during seed deterioration |
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| DOI：10.7606/j.issn.1000-7601.2008.05.38 |
| 中文关键词: 人工老化 锦鸡儿 种子 生理生化变化 |
| 英文关键词:artificial aging Caragana Fabr. seed physiological and biochemical changes |
| 基金项目: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) |
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| 中文摘要: |
| 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 microphlla Lam.）和柠条锦鸡儿（Caragana korshinskii Kom.）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、36、48 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。 |
| 英文摘要: |
| 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. |
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