论文部分内容阅读
以3个玉米品种为试验材料,对5个密度进行了不同叶位光合反应的研究。结果表明,玉米植株上部叶位光合速率高于下部叶位光合速率,穗位叶上部光合速率差值高于下部光合速率差值。种植密度对各叶位光合速率有一定影响,各叶位光合速率以6万株/hm2为密度轴线。
Three maize cultivars were used as experimental materials to study the photosynthesis of five different leaf positions. The results showed that the photosynthetic rate of upper leaves was higher than that of lower leaves, the difference of photosynthetic rate of upper leaves was higher than that of lower ones. The planting density had a certain influence on the photosynthetic rate of each leaf position, and the photosynthetic rate of each leaf position was 60,000 plants / hm2 as the density axis.