钴60辐射高羊茅变异株系抗旱生理指标比较

摘要

在盆栽水分胁迫条件下,对高羊茅的6个辐射变异株系G-4,G-6,G-8,G-9,G-12,G-G13的抗旱性生理指标进行比较研究,并以干旱胁迫下的成活率、可溶性糖、可溶性蛋白、叶绿素、叶片相对含水量、丙二醛、脯氨酸作为抗旱性测定的指标.结果表明,G-8,G-9,G-G13这3个变异株系的抗旱性显著强于对照品种爱瑞3号高羊茅与其他3个变异株系.%A pot trial was conducted under the condition of water stresses with six radiated festuca variant strains and (G—4, G-6, G-8, G-9, G-12, G-13) as materials to compare drought resistance physiological indexes, and 7 physiological and biochemical indexes including the survival rates of drought stress, soluble sugar, soluble protein, chlorophyll, the relative water content of leaves, MDA, praline were determined. The results show, G-8, G— 9, G-G13 three variant strains had significant drought resistances compared to the control and the other three variant strains.