摘要
试验采用不同浓度水杨酸(SA)喷施红地球红葡萄植株叶片,分别置于35,40,45,50℃的环境下进行高温锻炼,测定其电导率、叶绿素、丙二醛、脯氨酸浓度的变化,结果表明:在高温胁迫下,外源水杨酸能降低电导率,减少叶绿素的分解,抑制丙二醛(MDA)的积累,增加脯氨酸(PRO)的浓度,提高了葡萄的抗热性,其中以100μmol.L-1水杨酸处理表现最为明显.
After spraying salicylic acid to red globe grapes leaves, the leaves of the grapes were placed in 35 ℃, 40 ℃, 45 ℃ ,50 ℃ condition for adapting, then the changes of conductivity, chlorophyll content, MDA and proline content were measured. The results showed that under high temperature strees after heat acclimation, exogenous Salicylic Acid could decrease the conductivity, reduce the decomposition of chloroplast, inhibit the accumulation of MDA and increase proline content, meantime improve the heat resistance of grapes, and the treatment effect was the most obviously in 45 ℃ and under 100 μmol · L^-1 salicylic acid treaded.
出处
《农业科学研究》
2008年第4期13-15,共3页
Journal of Agricultural Sciences
关键词
葡萄
水杨酸
高温胁迫
grapes
salicylic acid
mitigative high-temperature
