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该试验结果表明,供水量与大豆产量明显相关,在开花至鼓粒期,土壤水量低于生育最适水分70％以下时,产量锐减。对不同供水量,大豆形态和生理上的反应是敏感的。在80％高水量下,产量和根冠比呈负相关,同平均荚数呈正相关。而在60％低水量下,产量主要和株高、脯氮酸含量呈正相关,与叶片茸毛数、水势、电导率等呈负相关。这些均可作为抗旱性强弱的重要指标,其中株高、电导率尤为重要。
The results showed that the amount of water supply was significantly related to soybean yield, and the yield dropped sharply when flowering to the drumming stage and the soil water content was below 70% of the optimal fertility level. For different water supply, soybean morphology and physiological response is sensitive. Under the condition of 80% water, the yield was negatively correlated with the root / shoot ratio and positively correlated with the average pods. At 60% of low water volume, the yield was mainly related to plant height and proline nitrogen content, but negatively correlated with leaf number, water potential and conductivity. These can be used as an important indicator of drought resistance, of which plant height, conductivity is particularly important.