| 水分胁迫下不同基因型旱地冬小麦生理变化及其与抗旱性的关系 |
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| 引用本文： | 王淑英,张国宏,李兴茂,姜小凤,倪胜利,李 倩,苏 敏.水分胁迫下不同基因型旱地冬小麦生理变化及其与抗旱性的关系[J].西北农业学报,2010,19(10):40-44. |
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| 作者姓名： | 王淑英 张国宏 李兴茂 姜小凤 倪胜利 李 倩 苏 敏 |
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| 作者单位： | 农业部西北作物抗旱栽培与耕作重点开放实验室,甘肃省旱作区水资源高效利用重点实验室,甘肃省农业科学院,兰州,730070 |
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| 基金项目： | 甘肃省科技重大专项项目(08DINKDA015); 农业部西北作物抗旱栽培与耕作重点开放实验室基金项目(HNSjj-200901) |
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| 摘 要： | 为了解不同程度水分胁迫下,不同基因型旱地冬小麦生理和产量的变化及生理变化与抗旱性的关系,及其耐重度水分胁迫的能力和丰水条件下的丰产潜力,选用4个旱地冬小麦品种,在正常供水、中度胁迫和重度胁迫条件下进行盆栽试验。结果表明,水分胁迫下参试品种功能叶脯氨酸(Pro)、可溶性糖(SS)和丙二醛(MDA)含量增加,Pro、MDA含量随着胁迫的加剧继续增加,而SS含量在中度胁迫下高于重度胁迫;水分胁迫下叶片SS含量增加幅度越大的品种抗旱性越强,Pro和MDA含量增加幅度越小的品种抗旱性越强;陇鉴101和长6878耐重度干旱的能力较好,不论在中度干旱还是严重干旱下都比较稳产,陇鉴386在中度干旱下表现稳产,但严重干旱下产量降幅大,陇鉴101与陇鉴386具有在水分条件较好时获得高产的丰产潜力,长6878在丰水条件下的丰产潜力较差。
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| 关 键 词： | 水分胁迫 基因型 旱地冬小麦 抗旱性 生理变化 |
Relationship between Physiological Changes and Drought resistance of Different Winter Wheat Genotypes under Water Stress |
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| WANG Shuying,ZHANG Guohong,LI Xingmao,JIANG Xiaofeng,NI Shengli,LI Qian and SU Min.Relationship between Physiological Changes and Drought resistance of Different Winter Wheat Genotypes under Water Stress[J].Acta Agriculturae Boreali-occidentalis Sinica,2010,19(10):40-44. |
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| Authors: | WANG Shuying ZHANG Guohong LI Xingmao JIANG Xiaofeng NI Shengli LI Qian and SU Min |
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| Institution: | WANG Shuying,ZHANG Guohong,LI Xingmao,JIANG Xiaofeng,NI Shengli,LI Qian and SU Min (Key Laboratory of Northwest Drought-resistant Crop Farming and Cultivation,Ministry of Agriculture People's Republic of China,Key Laboratory of High Water-use-efficiency in Arid Area of Gansu Province,Gansu Academy of Agricultural Sciences,Lanzhou 730070,China) |
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| Abstract: | In order to understand the physiological and yield changes,relationship between physiological changes and drought-resistance of different winter wheat genotypes under water stress,to study drought-tolerance and yield potential of tested genotypes,4 winter wheat cultivars were used for pot experiment under normal water supply,medium water-stress and severe stress.The results showed that the proline(Pro),soluble sugar(SS) and malondialdehyde(MDA) of leaves increased under water stress.Pro and MDA increased co... |
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| Keywords: | Genotype Winter wheat Drought-resistance Physiological change |
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