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采用人工浸水方法,从生理、形态等方面对大豆苗期耐涝性进行了初步研究。受涝后的植株叶色黄化,根系、根瘤发育显著受阻,T/R比值增大,根系活力降低。恢复旱田生态环境后,生理机能迅速转向正常,产量性状与对照差异不显著。试验证明大豆苗期耐涝性较强,表现出较强的自动调节能力及可逆性。
The artificial water immersion method was used to study the waterlogging tolerance of soybean at seedling stage from aspects of physiology and morphology. After the flooding, the leaf color of the plant was yellowed, the development of root and nodule was significantly blocked, the T / R ratio increased and the root activity decreased. After recovering the ecological environment of dry land, the physiological function quickly turned to normal, and the yield traits were not significantly different from the control. Test proved that seedling waterlogging stronger, showing a strong ability to automatically regulate and reversibility.