| 人工老化对两种披碱草属种子 生理生化特性的影响 |
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| 引用本文： | 吴浩, 周青平, 颜红波, 梁国玲, 刘文辉, 魏小星, 刘勇. 人工老化对两种披碱草属种子 生理生化特性的影响[J]. 草业科学, 2014, 8(12): 2251-2256. DOI: 10.11829/j.issn.1001-0629.2013-0685 |
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| 作者姓名： | 吴浩 周青平 颜红波 梁国玲 刘文辉 魏小星 刘勇 |
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| 作者单位： | 1.青海畜牧兽医科学院, 青海 西宁 810016;2.西南民族大学青藏高原研究院, 四川 成都 610041 |
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| 摘 要： | 以黑紫披碱草(Elymus atratus)和老芒麦(E. sibiricus)作为供试材料, 采用高温(45 ℃)高湿(相对湿度100%)的人工老化方法对供试种子处理0、1、2、3、4、5、6和7 d。结果表明, 随着老化时间的延长, 黑紫披碱草和老芒麦种子的发芽率、发芽势、发芽指数、活力指数呈下降趋势, 老芒麦种子的下降幅度高于黑紫披碱草。丙二醛的含量随种子老化进程缓慢上升, 可溶性糖含量增加, 过氧化物酶、超氧化物歧化酶活性和可溶性蛋白含量降低, 黑紫披碱草的抗老化能力强于老芒麦。
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| 关 键 词： | 黑紫披碱草 老芒麦 老化 生理生化 |
| 收稿时间： | 2014-01-10 |
Effects of accelerated aging on physiological and biochemical characteristics of two Elymus species seeds |
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| Hao WU, Qing-ping ZHOU, Hong-bo YAN, Guo-ling LIANG, Wen-hui LIU, Xiao-xing WEI, Yong LIU. Effects of accelerated aging on physiological and biochemical characteristics of two Elymus species seeds[J]. Pratacultural Science, 2014, 8(12): 2251-2256. DOI: 10.11829/j.issn.1001-0629.2013-0685 |
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| Authors: | Hao WU Qing-ping ZHOU Hong-bo YAN Guo-ling LIANG Wen-hui LIU Xiao-xing WEI Yong LIU |
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| Affiliation: | 1.Qinghai Academy of Animal and Veterinary Science, Xining 810016, China;2.Institute of Tibetan Plateau, Southwest University for Nationalities, Chengdu 610041, China |
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| Abstract: | Seeds of Elymus atratus and E. sibiricus were treated with accelerated aging at high temperature (45 ℃)and high humidity(RH100%) for 0, 1, 2, 3, 4, 5, 6 and 7 d. The results showed that germination rate, germination energy, germination index and vigor index of both E. sibiricus and E. sibiricus decreased with treatment period extended whereas E. sibiricus decreased more than E. atratus. The content of malondialdehyde slowly increased and the content of soluble sugar increased. However, the peroxidase activity, superoxide dismutase activity and the content of soluble protein decreased with treatment period extended. Resistance to accelerated aging of E. atratusis better than that of E. sibiricus |
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| Keywords: | Elymus atratus E. sibiricus aging physiological and biochemical |
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