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| 低温对小麦种子萌发和幼苗生长的影响 | |
| 引用本文： | 张泽全,舒长生,董雪芳,赖运平,李俊,魏会廷,彭正松,杨武云.低温对小麦种子萌发和幼苗生长的影响[J].西南农业学报,2010,23(1). |
| 作者姓名： | 张泽全 舒长生 董雪芳 赖运平 李俊 魏会廷 彭正松 杨武云 |
| 作者单位： | 1. 西华师范大学生命科学学院,四川,南充,637002;四川省农业科学院作物研究所,四川,成都,610066 2. 四川省宜宾市第四中学校,四川,宜宾,644007 3. 四川省农业科学院作物研究所,四川,成都,610066 4. 西华师范大学生命科学学院,四川,南充,637002 |
| 基金项目： | 国家自然科学基金，国家863计划，国家小麦产业技术体系，四川省国际合作项目，四川省应用基础研究，四川省育种工程，四川省育种攻关 |
| 摘 要： | 以3个小麦品种为实验材料,在室温(18℃)和低温(4℃)胁迫下测定发芽特性和幼苗(萌发15 d)形态指标,以各性状低温与室温下测定值的比值(相对值)作为小麦耐低温评价指标,评价小麦萌发和幼苗的耐低温特性。结果表明:低温降低小麦发芽速度和阻碍幼苗生长,苗比根对低温敏感,低温的干鲜比大于室温的干鲜重比值;种子萌发和幼苗期的各性状相对值可以作为鉴定小麦耐低温的评价指标。 |
| 关 键 词： | 小麦 低温 发芽指数 幼苗生长 |
Effect of Low Temperature on Seed Germination and Seedling Growth in Wheat |
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| ZHANG Ze-quan,SHU Chang-sheng,DONG Xue-fang,LAI Yun-ping,LI Jun,WEI Hui-ting,PENG Zheng-song,YANG Wu-yun.Effect of Low Temperature on Seed Germination and Seedling Growth in Wheat[J].Southwest China Journal of Agricultural Sciences,2010,23(1). | |
| Authors: | ZHANG Ze-quan SHU Chang-sheng DONG Xue-fang LAI Yun-ping LI Jun WEI Hui-ting PENG Zheng-song YANG Wu-yun |
| Institution: | ZHANG Ze-quan1,2,SHU Chang-sheng3,DONG Xue-fang1,LAI Yun-ping1,LI Jun2,WEI Hui-ting2,PENG Zheng-song1,YANG Wu-yun2 (1.Life Science College,China West Normal University,Sichuan Nanchong 637002,China,2.Crop Research Institute,Sichuan Academy of Agricultural Sciences,Sichuan Chengdu 610066,3.Yibin No.4 Middle School,Sichuan Yibin 644007,China) |
| Abstract: | Taking 3 wheat varieties as materals,the characteristics of germination and morphological index of seedling were determined.The ratio of the measured value of traits at room temperature(18 ℃)and low temperature(4 ℃)was taken as the evaluation index of low temperature tolerance to evaluate the low temperature tolerance of wheat seedling .The results showed that the low temperature decreased the germination speed and hindered the seedling growth .The seedling had stronger sensitive to the low temperature than that of the root.The ratio of dry weight and fresh weight at low temperatre was more than that at room temperature.The relative value of traits in period of the seed germination and seedling could be taken as the evaluation index of the low temperature tolerance. |
| Keywords: | Wheat Low temperature Germinating index Seedling growth |
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