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近年来,我国在小麦、玉米、水稻、高粱、大麦、谷子等禾本科主要农作物的形态解剖学方面和它们在生产应用上做了大量研究。利用器官的相关性,探讨作物外部形态与内部结构以及它们与生理功能之间的关系,可以运用直观指标随时掌握作物的生长状况。根据器官同伸规律,用外部形态特征作为判断幼穗分化进程的标准,可以及时有效地采取栽培管理措施。这对指导作物生产具有重要作用。一、确定幼穗分化进程的叶龄指标叶龄与幼穗的分化进程存在着对应关系。根据两者之间的同伸规律,可用叶龄直接断定幼穗分化所处的发育时期,并及时有效地采用适宜栽培措施。这被称为叶
In recent years, our country has done a lot of research on the morphological anatomy of the main crops of gramineous crops such as wheat, corn, rice, sorghum, barley and millet and their application in production. By using the correlation of organs, the relationship between the external morphology and internal structure of crops and their physiological functions can be explored, and visual indicators can be used to keep abreast of crop growth. According to the rules of organ extension, using external morphological characteristics as criteria for judging the process of spike differentiation, cultivation management measures can be timely and effectively taken. This has an important role in guiding crop production. First, to determine the differentiation of young leaves of the leaf age index of leaf age and differentiation of young spikes there is a corresponding relationship. According to the law of same extension between the two, the leaf age can be used to directly determine the developmental stages of panicle differentiation and to adopt appropriate cultivation measures in a timely and effective manner. This is called a leaf