制约苹果红色形成的要素１光首先光能促进叶片的光合作用，制造出的糖类等有机物更多地流向果实，为进一步合成花青素提供了充足的物质条件；其次光中所含的紫外线能诱发乙烯的产生，而乙烯能增加膜透性，提高了糖的积累，为戊糖代谢的顺利进行提供了充足的糖源，同时乙烯... Constraints apple red formation of a light First, light can promote leaf photosynthesis, resulting in more sugar and other organic matter flow to the fruit, for the further synthesis of anthocyanins provide sufficient material conditions; followed by the light contained in the ultraviolet Can induce the production of ethylene, and ethylene can increase membrane permeability, increased sugar accumulation, for the smooth progress of pentose metabolism provides a sufficient source of sugar, while ethylene ...