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| 69份玉米自交系的苗期耐旱性分析 | |
| 引用本文： | 朴明鑫,张春宵,杨书华,赵泽双,杨德光,关法春,刘文国,李晓辉. 69份玉米自交系的苗期耐旱性分析[J]. 吉林农业科学, 2011, 36(3) |
| 作者姓名： | 朴明鑫 张春宵 杨书华 赵泽双 杨德光 关法春 刘文国 李晓辉 |
| 作者单位： | 1. 东北农业大学农学院，哈尔滨150030;吉林省农业科学院生物技术研究中心，长春130033 2. 吉林省农业科学院生物技术研究中心,长春,130033 3. 东北农业大学农学院,哈尔滨,150030 4. 西藏农牧学院植科院,西藏林芝,860000 5. 吉林省农业科学院玉米研究所,吉林公主岭,136100 |
| 基金项目： | 2009年农业部转基因重大专项(2009ZX08003-018B)和2009年农业部转基因重大专项(2009ZX08003-009B) |
| 摘 要： | 以69份玉米自交系为试材,于温室模拟干旱胁迫环境,对各自交系的超氧化物歧化酶(SOD)活性、丙二醛(MDA)含量、脯氨酸(Pro)含量、相对电导率(REC)和相对含水量(RWC)等5项生理生化指标和茎粗、根冠比2项形态指标进行测定。通过对5项生理生化指标的耐旱系数的聚类分级,综合评价自交系的耐旱性。同时分析实验室条件下综合评价结果与形态指标鉴定结果的吻合度。结果表明:(1)受到胁迫时,材料的耐旱分级各不相同,材料间的响应机制各不相同;(2)筛选出耐旱性极强自交系4份、耐旱性强系14份、耐旱性中度系35份、耐旱性弱系12份、耐旱性极弱系4份;(3)根冠比、茎粗与综合评价结果吻合度低,不适宜作为实验室条件下玉米耐旱性的鉴定指标。 |
| 关 键 词： | 玉米 自交系 干旱胁迫 耐旱性 耐旱系数 |
Analysis of Drought Tolerance of Sixty-nine Maize Inbred Lines at Seeding Stage |
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| PIAO Ming-xin,Zhang Chun-xiao,Yang Shu-hua,ZHAO Ze-shuang,YANG De-guang,GUAN Fa-chun,LIU Wen-guo,LI Xiao-hui. Analysis of Drought Tolerance of Sixty-nine Maize Inbred Lines at Seeding Stage[J]. Journal of Jilin Agricultural Sciences, 2011, 36(3) | |
| Authors: | PIAO Ming-xin Zhang Chun-xiao Yang Shu-hua ZHAO Ze-shuang YANG De-guang GUAN Fa-chun LIU Wen-guo LI Xiao-hui |
| Affiliation: | PIAO Ming-xin1,2,Zhang Chun-xiao2,Yang Shu-hua1,ZHAO Ze-shuang1,YANG De-guang1,GUAN Fa-chun4,LIU Wen-guo3,LI Xiao-hui2(1.College of Agronomy,Northeast Agricultural University,Harbin 150030,2.Biotechnology Research Center,Academy of Agricultural Sciences of Jilin Province,Changchun 130033,3.Maize Research Institute,Gongzhuling 136100,4.Plant Science and Technology Department,Tibet Agricultural and Animal Husbandry College,Linzhi 860000,China) |
| Abstract: | Sixty-nine maize inbred lines were cultivated under simulated drought-stressed condition in greenhouse.Five physiological and biochemical indexes of these inbred lines were tested,which included SOD activity,MDA content,proline content,relative conductivity and relative water content.Two morphologic indexes were tested,which included stem diameter and root-shoot ratio.Based on the Fuzzy Clustering of five physiological and biochemical indexes,drought tolerance of the inbred lines was evaluated.And the corre... |
| Keywords: | Maize Inbred line Drought-stress Drought tolerance Drought tolerance index |
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