| 玉米黄改系材料萌芽期耐旱性鉴定与评价 |
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| 引用本文： | 王阳,杨永志,张玲,侯佳明,陈冰嬬,高鸣,胡喜连,李继洪,李淑杰,高士杰.玉米黄改系材料萌芽期耐旱性鉴定与评价[J].玉米科学,2016,24(3):1-6. |
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| 作者姓名： | 王阳 杨永志 张玲 侯佳明 陈冰嬬 高鸣 胡喜连 李继洪 李淑杰 高士杰 |
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| 作者单位： | 吉林省农业科学院作物资源研究所, 吉林 公主岭 136100,吉林省农业科学院作物资源研究所, 吉林 公主岭 136100,吉林省农业科学院生物技术研究所, 长春 130033,吉林省农业科学院作物资源研究所, 吉林 公主岭 136100,吉林省农业科学院作物资源研究所, 吉林 公主岭 136100,吉林省农业科学院作物资源研究所, 吉林 公主岭 136100,吉林省农业科学院作物资源研究所, 吉林 公主岭 136100,吉林省农业科学院作物资源研究所, 吉林 公主岭 136100,吉林省农业科学院作物资源研究所, 吉林 公主岭 136100,吉林省农业科学院作物资源研究所, 吉林 公主岭 136100 |
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| 基金项目： | 吉林省科技厅自然科学基金项目(20130101079JC)、吉林省农业科技创新工程自由创新性研究、吉林省农委现代农作物种业发展专项资金项目 |
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| 摘 要： | 在正常水分和PEG6000胁迫处理条件下,对玉米自交系黄早四和16份黄改系材料进行萌芽期耐旱性鉴定并筛选耐旱材料。结果表明,PEG溶液在浓度为-0.2 Mpa(11.96%)即可进行干旱胁迫处理。萌发耐旱指数(GDRI)和贮藏物质干旱伤害率能够区分材料的耐旱性,GDRI与贮藏物质干旱伤害率呈显著负相关。GDRI与胚根长伤害率、胚芽干重伤害率和胚根干重伤害率呈显著负相关。中胚轴长度、子粒鲜重和子粒干重不受干旱胁迫的影响,不能作为耐旱性鉴定的性状,可用于育种材料的筛选性状。根据PEG胁迫筛选,获得6份黄改系的萌芽期耐旱性材料。
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| 关 键 词： | 玉米 黄改系 萌芽期 耐旱性 |
| 收稿时间： | 2015/11/8 0:00:00 |
Identification and Evalution on Drought Tolerance of Maize Huanggaixi Lines in the Germination Stage |
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| WANG Yang,YANG Yong-zhi,ZHANG Ling,HOU Jia-ming,CHEN Bing-xu,GAO Ming,HU Xi-lian,LI Ji-hong,LI Shu-jie and GAO Shi-jie.Identification and Evalution on Drought Tolerance of Maize Huanggaixi Lines in the Germination Stage[J].Journal of Maize Sciences,2016,24(3):1-6. |
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| Authors: | WANG Yang YANG Yong-zhi ZHANG Ling HOU Jia-ming CHEN Bing-xu GAO Ming HU Xi-lian LI Ji-hong LI Shu-jie and GAO Shi-jie |
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| Institution: | Crop Germplasm Research Institute, Jilin Academy of Agricultural Sciences, Gongzhuling 136100,Crop Germplasm Research Institute, Jilin Academy of Agricultural Sciences, Gongzhuling 136100,Agro-Biotechnology Research Institute, Jilin Academy of Agricultural Sciences, Changchun 130033, China,Crop Germplasm Research Institute, Jilin Academy of Agricultural Sciences, Gongzhuling 136100,Crop Germplasm Research Institute, Jilin Academy of Agricultural Sciences, Gongzhuling 136100,Crop Germplasm Research Institute, Jilin Academy of Agricultural Sciences, Gongzhuling 136100,Crop Germplasm Research Institute, Jilin Academy of Agricultural Sciences, Gongzhuling 136100,Crop Germplasm Research Institute, Jilin Academy of Agricultural Sciences, Gongzhuling 136100,Crop Germplasm Research Institute, Jilin Academy of Agricultural Sciences, Gongzhuling 136100 and Crop Germplasm Research Institute, Jilin Academy of Agricultural Sciences, Gongzhuling 136100 |
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| Abstract: | Under normal water condition and polyethylene glycol(PEG) simulating water stress condition, electing and identification drought tolerance of inbred Huangzaosi and 16 Huanggaixi(HGX) lines in the germination stage. The results showed that drought stress was simulated when the concentration of PEG solution was -0.2 Mpa(11.96%). The drought tolerance of lines was distinguished by GDRI and dry matter accumulation injuring rate. There were significantly negative correlation between GDRI and dry matter accumulation injuring rate. There were significantly negative correlation between GDRI and injuring rate of radicle length and dry weight of spout and radical. Mesocotyl length, kernel fresh weight and kernel dry weight couldn''t be identification traits of drought tolerance because they couldn''t affect by drought tolerance, but they were breeding selection traits. Based on PEG stress, six HGX lines were identification in the germination stage. |
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| Keywords: | Maize Huanggaixi lines Germination stage Drought tolerance |
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