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玉米的绿色叶片是进行光合作用的主要器官,是干物质积累的主要来源,也是人们了解玉米生长发育进程的主要外部形态标志。温度是影响玉米叶片生长的主要气象因子,玉米叶令的增加,拔节、抽雄、吐丝和灌浆过程以及整个发育期的完成都和积温有密切的关系。而玉米叶片的生长又是玉米幼穗发育进程的一种很好外部形态标志。例如中熟玉米6—7片展开叶时,正是茎基部开始伸长,进入营养生长与生殖生长同时并进的阶段,10片展开叶时,雌
The green leaf of corn is the main organ for photosynthesis and is the main source of dry matter accumulation. It is also the main external morphological mark for people to understand the process of corn growth and development. Temperature is the main weather factor that affects the growth of maize leaves. The increase of maize leaves, jointing, tasseling, silking and grouting, and the whole developmental period are closely related to accumulated temperature. However, the growth of maize leaves is a good indicator of the external morphology of maize panicle development. For example, medium-sized corn 6-7 leaf expansion leaves, it is the stem base began to stretch into the vegetative and reproductive growth at the same time the stage, the development of 10 leaves, the female