| 水分胁迫对新单29玉米种子萌发和生长的影响 |
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| 引用本文： | 单长卷,杨文平,王姗,钟威,汪亮,孟阳陶. 水分胁迫对新单29玉米种子萌发和生长的影响[J]. 河南农业科学, 2012, 41(11): 22-24 |
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| 作者姓名： | 单长卷 杨文平 王姗 钟威 汪亮 孟阳陶 |
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| 作者单位： | 1. 河南科技学院,河南新乡,453003
2. 商洛学院生物医药工程系,陕西商洛,726000 |
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| 基金项目： | 河南科技学院科技创新基金 |
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| 摘 要： | 为了研究玉米品种新单29种子萌发期的抗旱性,采用发芽试验,研究了水分胁迫对新单29种子萌发和生长的影响。结果表明,除5%PEG胁迫外,其余水分胁迫处理下,新单29侧根条数均显著低于正常水分处理,根冠比则显著高于正常水分处理。各水分胁迫条件下,新单29的发芽率、发芽势、发芽指数、活力指数、根长、株高、根系和地上部质量均显著低于正常水平,相对伤害率则显著高于正常水平。说明水分胁迫对新单29种子的萌发和生长具有显著影响。
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| 关 键 词： | 水分胁迫 玉米 新单29 萌发 生长 |
Effects of Water Stress on Seed Germination and Growth of Maize Variety Xindan 29 |
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| SHAN Chang-juan , YANG Wen-ping , WANG Shan , ZHONG Wei , WANG Liang , MENG Yang-tao. Effects of Water Stress on Seed Germination and Growth of Maize Variety Xindan 29[J]. Journal of Henan Agricultural Sciences, 2012, 41(11): 22-24 |
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| Authors: | SHAN Chang-juan YANG Wen-ping WANG Shan ZHONG Wei WANG Liang MENG Yang-tao |
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| Affiliation: | 1(1.Henan Institute of Science and Technology,Xinxiang 453003,China; 2.Department of Biomedical Engineering,Shangluo College,Shangluo 726000,China) |
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| Abstract: | This paper deals with the effects of water stress on the seed germination and growth of maize variety Xindan 29 in a germinating experiment.The results showed that the number of lateral root was significantly lower in water stresses than in normal water condition except for the treatment of 5% PEG,but the ratio of root to shoot was significantly higher than the latter.The germinating rate,germinating energy,germinating index,vigour index,root length,plant height,fresh weight of root and aboveground were significantly lower in different water stresses than in normal water condition,while the relative injury rate was significantly higher.It was concluded that water stress had significant effect on the germination and growth of Xindan 29. |
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| Keywords: | water stress maize Xindan 29 germination growth |
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