高温胁迫对月季品种部分生理指标的影响研究

Research in Effect of High Temperature on Physiological Indexes of Varieties in China Rose

在正常温度和高温条件下研究月季耐热品种和不耐热品种的生理生化指标的变化趋势,结果表明,耐热月季品种在高温下自由水/束缚水比值、电导率上升明显小于不耐热品种,而脯氨酸含量、可溶性蛋白含量、抗氧化酶活性均比不耐热品种高。上述生理指标均可作为月季品种耐热性筛选指标体系,也可为其它园林植物的耐热筛选提供参考。

The research on the change trend of the physiological indexes in heat-resistance varieties and nonheat-resistance varieties of China rose in the normal and high temperature condition has indicated the rate of free water and tied water, relative electrolyte leakage and the content of MDA in the former increased evidently less than the latter, but the content of Proline, soluble proteins and the activities of SOD, POD and CAT increased evidently higher than the later. All of those physiological indexes would compose the system of heat-resistance selection for the China roses and be considered as a theory reference for the other ornamental plants.