张明生,戚金亮,杜建厂,杨春贤,杨永华,谈锋. 甘薯质膜相对透性和水分状况与品种抗旱性的关系[J]. 华南农业大学学报, 2006, 27(1): 69-71,75. DOI: 10.7671/j.issn.1001-411X.2006.01.018
    引用本文: 张明生,戚金亮,杜建厂,杨春贤,杨永华,谈锋. 甘薯质膜相对透性和水分状况与品种抗旱性的关系[J]. 华南农业大学学报, 2006, 27(1): 69-71,75. DOI: 10.7671/j.issn.1001-411X.2006.01.018
    ZHANG Ming-sheng,QI Jin-liang,DU Jian-chang,YANG Chun-xian,YANG Yong-hua,TAN Feng. Relationship Between Relative Penetration of Plasmalemma and Water Condition Under Water Stress and Drought Resistance in Sweet Potato[J]. Journal of South China Agricultural University, 2006, 27(1): 69-71,75. DOI: 10.7671/j.issn.1001-411X.2006.01.018
    Citation: ZHANG Ming-sheng,QI Jin-liang,DU Jian-chang,YANG Chun-xian,YANG Yong-hua,TAN Feng. Relationship Between Relative Penetration of Plasmalemma and Water Condition Under Water Stress and Drought Resistance in Sweet Potato[J]. Journal of South China Agricultural University, 2006, 27(1): 69-71,75. DOI: 10.7671/j.issn.1001-411X.2006.01.018

    甘薯质膜相对透性和水分状况与品种抗旱性的关系

    Relationship Between Relative Penetration of Plasmalemma and Water Condition Under Water Stress and Drought Resistance in Sweet Potato

    • 摘要: 对水分胁迫下甘薯植株质膜相对透性(RPP)和水分状况与品种抗旱性关系的研究结果表明,水分胁迫下不同甘薯品种叶片的RPP和水分饱和亏(WSD)均明显增大,叶片相对含水量(wRW)、自由水与束缚水含量比值(w1/wb)及藤叶与块根含水量比对照均不同程度下降.wRW与品种抗旱性呈极显著正相关(r=0.9080,P〈0.01),RPP、WSD、w1/wb及块根含水量的相对值与品种抗旱性均呈极显著负相关(r=-0.6797~-0.8937,P〈0.01),藤叶含水量的相对值与品种抗旱性问的相关性不显著(r=-0.3675,P=0.1778).因此,除藤叶含水量外,其余指标均可用于甘薯品种抗旱性的评定.

       

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