| 水分胁迫下亚麻种子萌发的生理响应 |
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| 引用本文： | 邢鹏,杨玉玲,刘广辉,关虎,李守明,魏凌基.水分胁迫下亚麻种子萌发的生理响应[J].石河子大学学报,2011,29(1). |
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| 作者姓名： | 邢鹏 杨玉玲 刘广辉 关虎 李守明 魏凌基 |
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| 作者单位： | 石河子大学农学院; |
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| 摘 要： | 为了解水分胁迫对亚麻种子萌发的影响以及为亚麻抗旱栽培技术和育种方法提供理论依据,以亚麻076、075、陇亚8号的种子为试验材料,分别用不同质量分数(0%、10%、15%、20%、25%、30%)的聚乙二醇(PEG-6000)处理,研究水分胁迫对亚麻种子的萌发的影响。结果显示:随着PEG质量分数的增加,亚麻种子的发芽势、发芽率下降,其中陇亚8号下降幅度最大。亚麻种子在PEG质量分数增加时,电导率呈现了低高低的趋势,其中076的电导率的变化较明显。适宜质量分数的PEG胁迫可以提高种子的活力指数,而较高质量分数的PEG则降低种子的活力指数。试验可知,这3个品种的种子在抗旱性上有明显的差异,076抗旱性强,075较抗旱,陇亚8号不抗旱。
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| 关 键 词： | 水分胁迫 亚麻种子 萌发 |
Effect of Water Stress on Seed Germination of Flax |
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| XING Peng,YANG Yuling,LIU Guanghui,GUAN Hu,LI Shouming,WEI Lingji.Effect of Water Stress on Seed Germination of Flax[J].Journal of Shihezi University(Natural Science),2011,29(1). |
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| Authors: | XING Peng YANG Yuling LIU Guanghui GUAN Hu LI Shouming WEI Lingji |
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| Institution: | XING Peng,YANG Yuling,LIU Guanghui,GUAN Hu,LI Shouming,WEI Lingji(College of Agriculture,Shihezi University,Shihezi 832003,China) |
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| Abstract: | To understand the effect of drought stress on seed germination of flax and supply some a theory basis for flax drought stress breeding,6 concentrations of PEG-6000(0%,10%,15%,20%,25%,30%) were used to stress three flax lines or varieties during seed germination periods and seed germination rate,germination energy and conductance were investigated.The results showed that seed germination rates and germination energies of flax were gradually decreased with the increase of PEG concentration,and the cultivar Lo... |
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| Keywords: | water stress flax seed germination |
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