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分析了 30个苋菜品种 7叶期叶片的光合速率、蒸腾速率、水分利用率、叶形指数及叶绿素含量之间的关系。结果表明 ,30个苋菜品种的光合速率均极显著高于蕹菜 ,品种资源间也存在极显著差异 ;不同品种或同一品种不同叶片之间 ,光合速率与蒸腾速率、水分利用率间均存在极显著的偏正相关 ,但与叶形指数、叶绿素含量间无显著的偏相关关系
The relationships among leaf photosynthesis rate, transpiration rate, water use efficiency, leaf index and chlorophyll content of 30 amaranth varieties were analyzed. The results showed that the photosynthetic rate of 30 amaranth cultivars were significantly higher than that of the Japanese rapeseed. There were also significant differences among different cultivars. The photosynthetic rate, transpiration rate and water use efficiency of different cultivars or cultivars Significant positive correlation but no significant correlation with leaf index and chlorophyll content