不同控水方式下不同水稻品种的生理响应与产量构成因子研究

Study on Physiological Response and Yield Component of Different Rice Cultivars Under Different Irrigation Methods

通过田间试验,研究了控制灌溉与常规灌溉对3个水稻品种生理作用、产量构成因子与产量的影响.结果表明,控制灌溉比常规灌溉节约灌水量60%-75%.2种控水方式3个水稻品种叶片叶水势,丙二醛和可溶性蛋白含量,以及过氧化氢酶、过氧化物酶和超氧化物岐化酶活性之间差异不明显;穗长、有效穗数、千粒质量、谷草比、结实率和实际产量之间差异也不明显.与常规灌溉相比,控制灌溉虽然增加水稻产量的效果不明显,但是节约灌水量明显,因此,控制灌溉是水稻种植中一种有效的节水灌溉方式.

The physiological response,yield components and yield of three rice cultivars under controlled irrigation（CI） and flooding irrigation（FI） were investigated by using field experiment.The results showed that controlled irrigation reduced total water consumption of three rice cultivars by 60%-75%,compared to flooding irrigation.No significant difference in leaf water potential,the contents of malonaldehyde and soluble protein,and the activities of superoxide dismutase,peroxidase and catalase after the booting were found between two irrigation methods.There are also no significant difference in panicle length,effective panicle number per plant,thousand kernel mass grain-straw ratio,seed setting rate and yield between two irrigation methods.Compared to the flooding irrigation,the controlled irrigation can save irrigation water greatly although it did not increase rice yield significantly.Thus,controlled irrigation is an efficient water-saving irrigation method in rice planting.