| 矮沙冬青种子的超干保存 |
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| 引用本文： | 刘艳萍,鲁乃增,段黄金,张丽. 矮沙冬青种子的超干保存[J]. 四川农业大学学报, 2010, 28(2): 131-135 |
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| 作者姓名： | 刘艳萍 鲁乃增 段黄金 张丽 |
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| 作者单位： | 1. 塔里木大学,植物科学学院,阿拉尔,843300
2. 沈阳农业大学,沈阳,110161 |
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| 基金项目： | 塔里木大学校长硕士基金 |
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| 摘 要： | 采用硅胶干燥法对矮沙冬青种子进行超干保存的研究,结果表明将种子含水量降至5%以下,能显著提高抗老化能力。在同等老化处理条件下,对照种子发芽率和活力指数已大幅下降,而超干种子的发芽率和活力指数所受影响较小。对超干种子的电导率、脱氢酶活性的研究结果表明,含水量为3.35%的超干种子细胞膜通透性较低,脱氢酶活性较高。回湿处理是保证超干种子活力的关键因素,采用室内回湿24 h+饱和水蒸气回湿24 h可以显著提高矮沙冬青超干种子的活力。说明利用超干技术保存矮沙冬青种子是可行的。
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| 关 键 词： | 矮沙冬青 超干保存 最适含水量 种子贮存 |
Ultra-dry Preservation of Ammopiptanthus nanus (M. Pop.) Cheng f. Seeds |
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| LIU Yan-ping,LU Nai-zeng,DUAN Huang-jin,ZHANG Li. Ultra-dry Preservation of Ammopiptanthus nanus (M. Pop.) Cheng f. Seeds[J]. Journal of Sichuan Agricultural University, 2010, 28(2): 131-135 |
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| Authors: | LIU Yan-ping LU Nai-zeng DUAN Huang-jin ZHANG Li |
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| Affiliation: | LIU Yan-ping1,LU Nai-zeng1,DUAN Huang-jin1,ZHANG Li2(1.College of Plant Science,Tarim University,Alarcon 843300,China,2.Shenyang Agricultural University,Shenyang 110161,China) |
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| Abstract: | Dry silica gel was used in this experiment to preserve ultra-dry seeds of Ammopiptanthus nanus(M.Pop.) Cheng f.The results indicated that when seed moisture content was reduced to 5% or less,its anti-aging ability could be improved significantly.Under the same aging conditions,the germination rate and vigor index of the controlled seeds had fallen significantly,while those of the ultra-dry seeds were affected little.The study of the conductivity and dehydrogenase activity of the ultra-dry seeds revealed tha... |
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| Keywords: | Ammopiptanthus nanus ultra-dry preservation optimum water content seed storage |
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