据长南信雄报告,提高碳三植物的生产力,重要的是提高光合能力及光合产物的运转速度。笔者认为,与气孔阻碍CO_2扩散有关的叶构造特性为气孔密度,保卫细胞长及细胞间隙等。这些构造特性与光合速车间的相关系数一般较低,大麦仅在气孔密度不同的同质基因品系或品种间,其气孔密度与光合速率为有意义的正 According to the report of Cheung Nam Shin Hye, it is important to increase the photosynthetic capacity and photosynthetic product operating speed to increase the productivity of C 3 plants. In my opinion, the leaf traits associated with stomatal obstruction of CO_2 diffusion are stomatal density, guard cell length and cell gap. The correlation coefficients of these tectonic traits and photosynthetic rate plants were generally low. Only significant differences were found in stomatal density and photosynthetic rate among the homozygous lines or cultivars with different stomatal density