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在大田条件下 ,研究了春大豆三个品种的光合速率。结果表明 ,不同大豆品种的叶片光合速率随生育时期、叶位及光照强度的不同而变化 ,并呈现一定的规律。大豆主要生育时期的平均光合速率与产量呈显著正相关 ,相关系数为 0 .96 16。因此平均光合速率的大小可作为评定大豆产量高低的一个重要指标
Under field conditions, the photosynthetic rate of three varieties of spring soybean was studied. The results showed that the leaf photosynthetic rate of different soybean varieties varied with the growth period, leaf position and light intensity, and showed certain rules. There was a significant positive correlation between the average photosynthetic rate and yield of soybean during its main growth period, with a correlation coefficient of 0.96 16. Therefore, the average photosynthetic rate can be used as a measure of the level of soybean production is an important indicator