种植密度和施氮量对鲜食糯玉米叶片光合生理特性的影响

不同密度和施氮量下,鲜食糯玉米植株单株可见绿叶数和展开绿叶数、单株叶面积、叶面积指数、光合势、功能叶的叶绿素a、叶绿素b和叶绿素a b、功能叶净光合速率等变化均呈单峰曲线。这些生理指标均随施氮量的增加而增加;除叶面积指数及光合势随密度增加而增加外,其余指标均随密度的增加而下降。

The Study of the Different Density and Nitrogenous Fertilizer EmploymentQuantity Characteristic Affects to the Fresh-eating Waxy Corn Leaf Blade Photosynthesis Physiology

The indices changes the fresh-eating waxy corn adult plant single obvious green leaf number and launches the green leaf number, single blade area, the leaf area index, the photosynthesis potential, function leaf's chlorophyll a, chlorophyll b and the chlorophyll a b, the function leaf only photosynthesizes the speed and so on under different density and nitrogenous fertilizer employment quantity, assume the single peak change curve. The indexes increase along with nitrogenous fertilizer employment quantity the increase. But eliminates the leaf area index, the photosynthesis potential increases along with the density increases, other targets drop along with the density increase.