| 碳水化合物含量和过氧化物酶活性变化与苜蓿抗寒性的关系 |
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| 引用本文： | 梁慧敏,夏阳.碳水化合物含量和过氧化物酶活性变化与苜蓿抗寒性的关系[J].甘肃农业大学学报,1995,30(4):307-311. |
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| 作者姓名： | 梁慧敏 夏阳 |
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| 作者单位： | 甘肃农业大学草业工程系，甘肃农业大学园艺系，宁夏农科院 |
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| 摘 要： | 秋冬随温度下降，根中可溶性糖含量增加，早春随温度升高，可溶性糖含量减少，茎则无明显变化。说明以宿根越冬的苜蓿其抗寒力主要表现在根部。与直根型苜蓿相比，根蘖型苜蓿根茎水含量低，可溶性糖含量和过氧化物酶活性高，这些重要的生理特性与根蘖型苜蓿优良的抗寒性有关。
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| 关 键 词： | 苜蓿，碳水化合物含量，过氧化物酶活性，抗寒性 |
Seasonal Changes in Carbonhydrate Content and Peroxidase Activities Relate to Cold Hardiness of Alfalfa |
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| Liang Huimin Xia Yang Liang Yuexiang.Seasonal Changes in Carbonhydrate Content and Peroxidase Activities Relate to Cold Hardiness of Alfalfa[J].Journal of Gansu Agricultural University,1995,30(4):307-311. |
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| Authors: | Liang Huimin Xia Yang Liang Yuexiang |
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| Abstract: | Soluble sugar content in roots increased as temperature fell in autumn and win-ter,decreased in early spring as temperature rose.No changes were found on sugar contentin stems,The results showed that the cold hardiness of alfalfa was mainly expressed in roots. Comparied with the straight-rooted,the root and stem of creeping-rooted alfalfa was lessmoisture content,higher soluble sugar content and peroxidase activities,These importantphysiological characters related to its excellent cold hardiness. |
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| Keywords: | alfalfa carbonhydrate content peroxidase activity cold hardiness |
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