| 18个三叶草品种耐热性综合评价 |
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| 引用本文： | 张鹤山,刘洋,王凤,田宏,蔡化.18个三叶草品种耐热性综合评价[J].草业科学,2009,26(7):44-49. |
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| 作者姓名： | 张鹤山 刘洋 王凤 田宏 蔡化 |
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| 作者单位： | 湖北省农业科学院畜牧兽医研究所,湖北省动物胚胎工程及分子育种重点实验室,湖北,武汉,430209;湖北省农业科学院畜牧兽医研究所,湖北省动物胚胎工程及分子育种重点实验室,湖北,武汉,430209;湖北省农业科学院畜牧兽医研究所,湖北省动物胚胎工程及分子育种重点实验室,湖北,武汉,430209;湖北省农业科学院畜牧兽医研究所,湖北省动物胚胎工程及分子育种重点实验室,湖北,武汉,430209;湖北省农业科学院畜牧兽医研究所,湖北省动物胚胎工程及分子育种重点实验室,湖北,武汉,430209 |
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| 基金项目： | 国家科技支撑计划子课题(2008BADB3B10-3);;湖北省财政专项“优质肉羊新品系选育及健康养殖技术研究”(200730);;农业部“农业资源保护”(2130135);;湖北省重点实验室开放课题项目(2007ZD02) |
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| 摘 要： | 对18个三叶草品种耐热性进行了比较，并结合芽期和成苗试验，综合评价了各品种的耐热性强弱。结果表明：发芽率、发芽指数随温度的升高而降低，在40 ℃时种子不发芽；叶片灼伤率、植株存活率和叶片相对含水量在各品种之间差异较大。对耐热性综合评价表明，18个品种中特特里红三叶属强耐热品种；新西兰白三叶耐热性较强；海法白三叶、胡依阿白三叶、G18白三叶、戈伦红三叶、雷托白三叶、巴东红三叶、帕韦拉红三叶、鄂牧1号白三叶、罗汤地红三叶、新西兰杂三叶、2-2-1杂三叶为中等耐热品种；克劳白三叶、皮陶白三叶、奥罗拉杂三叶和蒂特拉杂三叶品种耐热性较弱，耐热性最弱的是路易斯安娜白三叶。建议在长江流域及长江以南地区选择耐热性较强的几个品种进行推广示范。
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| 关 键 词： | 三叶草 耐热性 综合评价 |
The comprehensive evaluation of heat tolerance of 18 trifolium varieties |
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| ZHANG He-shan,LIU Yang,WANG Feng,TIAN Hong,CAI Hua.The comprehensive evaluation of heat tolerance of 18 trifolium varieties[J].Pratacultural Science,2009,26(7):44-49. |
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| Authors: | ZHANG He-shan LIU Yang WANG Feng TIAN Hong CAI Hua |
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| Institution: | Institute of Animal Husbandry and Veterinary;Hubei Academy of Agricultural Science;Key Laboratory for Animal Embryo Engineering and Molecular Breeding of Hubei Province;Wuhan 430209;China |
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| Abstract: | The heat tolerance of 18 trefoil varieties were compared and evaluated comprehensively combined with germination and seedling field experiment. The results showed that the germination rate and the germination index declined with the temperature increasing. The seeds from all trefoil varieties could not germinate at the 40℃. The leaf firing rate, the survival rate of seedling and the leaf relative water content were different greatly in all varieties. The results of comprehensive appraisal indicated that the variety'Tetri' was the highest tolerant to heat, the variety 'New Zealand' was higher tolerant, and the varieties 'Haifa','Huia','G18','Gollum','Retor','Badong','Pawera','Emu No 1' and so on were mid-tolerant to heat, 'Crau','Pitau','Aurora','Tetra' were the varieties with lower tolerance to heat, while the tolerance to heat of variety 'Louisiana' was the lowest. It was suggested that the varieties with higher heat tolerance should be planted in Yangtze River and its south region of China. |
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| Keywords: | trifolium heat tolerance comprehensive appraisal |
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