| 超干及老化处理对紫花苜蓿种子活力和生理变化的影响 |
| |
| 引用本文： | 霍平慧,李剑峰,师尚礼,张淑卿,赵文翰. 超干及老化处理对紫花苜蓿种子活力和生理变化的影响[J]. 中国草地学报, 2011, 33(3) |
| |
| 作者姓名： | 霍平慧 李剑峰 师尚礼 张淑卿 赵文翰 |
| |
| 作者单位： | 甘肃农业大学草业学院/草业生态系统教育部重点实验室/中-美草地畜牧业可持续发展研究中心,甘肃,兰州,730070 |
| |
| 基金项目： | 国家自然科学基金，国家科技支撑项目，农业部行业专项，现代农业产业技术体系建设专项资金 |
| |
| 摘 要： | 以陇东紫花苜蓿为研究对象,采用室温硅胶干燥法对种子进行不同时间的超干处理,测定室温贮藏与高温老化处理后不同含水量种子的活力及生理变化.结果表明:5.72%含水量的超干处理综合表现最优,该处理下室温贮藏种子的发芽率、发芽势和活力指数分别较对应CK(室温贮藏的未超干种子)高28.91%、30.02%和66.06%,可溶性糖含量、APX活性高22.85%、76.21%,而MDA含量仅为CK的50.15%,TTC相对减少量为CK的95%;老化种子的发芽率、发芽势和活力指数较对应CK(老化处理未超干种子)高26.31%、23.19%和67.09%,可溶性糖含量、APX活性分别高39%、115.27%,MDA含量仅为CK的52.32%,TTC相对减少量为CK的93.05%.说明5.72%种子含水量的超干处理可使苜蓿种子活力保持在较高状态,对苜蓿种子的长期保存和利用有积极作用.
|
| 关 键 词： | 紫花苜蓿 超干处理 老化 种子活力 生理活性 |
Effect of Ultra-drying and Accelerated Ageing on Vigor and Physiological Activity of Alfalfa Seeds |
| |
| HUO Ping-hui,LI Jian-feng,SHI Shang-li,ZHANG Shu-qing,ZHAO Wen-han. Effect of Ultra-drying and Accelerated Ageing on Vigor and Physiological Activity of Alfalfa Seeds[J]. Chinese Journal of Grassland, 2011, 33(3) |
| |
| Authors: | HUO Ping-hui LI Jian-feng SHI Shang-li ZHANG Shu-qing ZHAO Wen-han |
| |
| Affiliation: | HUO Ping-hui,LI Jian-feng,SHI Shang-li,ZHANG Shu-qing,ZHAO Wen-han(College of Grassland Science,Gansu Agricultural University / Key Laboratory of Grassland Ecosystem of Ministry of Education / Sino-U.S.Centers for Grazingland Ecosystem Sustainability,Lanzhou 730070,China) |
| |
| Abstract: | Medicago sativa L.cv.Longdong was used as test material,and silica gel was used to study the effect of ultra-drying on vigor and physiological activity of normally stored and aged alfalfa seeds.The results indicated that seeds with moisture content at 5.72% performed best among all the tested indices,the germination rate,germination potential and vigor index were increased by 28.91%,30.02% and 66.06% than the control(un-ultradried seeds that stored at room temperature),while the above indices of aged seeds ... |
| |
| Keywords: | Medicago sativa Ultra-drying treatment Ageing Seed vigor Physiological activity |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
