| 应用隶属函数法筛选贵州玉米苗期抗寒种质 |
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| 引用本文： | 雷雨婷,吕立堂,赵德刚. 应用隶属函数法筛选贵州玉米苗期抗寒种质[J]. 山地农业生物学报, 2017, 0(2): 35-39. DOI: 10.15958/j.cnki.sdnyswxb.2017.02.007 |
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| 作者姓名： | 雷雨婷 吕立堂 赵德刚 |
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| 作者单位： | 贵州大学生命科学学院/农业生物工程研究院,贵州贵阳550025;贵州大学山地植物资源保护与种质创新省部共建教育部重点实验室,贵州 贵阳550025 |
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| 基金项目： | 国家转基因生物新品种培育科技重大专项子课题任务(2014ZX0801008B-002)，国家转基因生物新品种培育科技重大专项子课题任务(2014ZX08010-003)，贵州省科技厅转基因专项(黔科2004NZ004) |
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| 摘 要： | 本文以25种贵州本地玉米种质为材料,在低温胁迫条件下,测定了植株鲜重、植株干重、根冠比、可溶性糖含量和叶绿素等生理指标,运用灰色关联度分析法对玉米苗期抗寒性鉴定指标进行筛选。发现根干重、植株干重、根鲜重和可溶性糖含量等指标与玉米抗寒性关系较为密切,根上部鲜重和叶绿素含量与抗寒的关联度最小。同时利用隶属函数法对玉米抗寒性进行综合评价,结果表明:金玉818、QB1013和黄C等种质抗寒性较强。
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| 关 键 词： | 玉米 低温胁迫 抗寒性 隶属函数法 |
Selection of Cold-Hardiness Germplasm in Maize Seedlings by Subordinate Function (SF) |
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| LEI Yu-ting,LV Li-tang,ZHAO De-gang. Selection of Cold-Hardiness Germplasm in Maize Seedlings by Subordinate Function (SF)[J]. Journal of Mountain Agriculture & Biology, 2017, 0(2): 35-39. DOI: 10.15958/j.cnki.sdnyswxb.2017.02.007 |
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| Authors: | LEI Yu-ting LV Li-tang ZHAO De-gang |
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| Abstract: | In order to study the cold resistance of different maize,25 maize varieties were used as materials.Fresh weight,dry weight,root-shoot ratio,content of soluble sugar and content of chlorophyll were measured after cold treatment,and cold resistance were studied by the method of grey correlation degree analysis.The results showed that the most relative characters to cold resistance were root dry biomass,total plant dry weight,root fresh weight and soluble sugar content,and the least relative characters were fresh weight and chlorophyll.Cold resistance of the maize varieties were evaluated by subordinate function method.The results showed that Jin-yu 818,QB1013,and Huang C performed much resistance to the coldness. |
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| Keywords: | maize low-temperature stress cold resistance subordinate function method |
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