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在棉花生产实践中,如何诊断棉花花芽的分化及其产量形成,进而合理控制棉花群体和个体的变化,促使向高产方向发展,这是一个极为重要的问题.本文试从棉株的展叶数来了解幼叶、果枝和花蕾原基的分化动态,揭示棉株的个体发育、形态建成和产量结构形成的过程,从而为棉花合理栽培提供理论依据.一、主茎展叶数与分化叶数的关系棉花种子中除有折叠的两片子叶外,顶芽原基已分化出1—2个叶原基.当棉苗两片子叶展平时已分化4个左右幼叶(包括叶原基,下同).以后,每增加一个展开叶,总分
In cotton production practice, how to diagnose the differentiation of cotton flower buds and their yield formation, and then control the cotton population and individual changes reasonably, and promote the development toward high yield, is an extremely important issue.This paper is based on the number of leaves To understand the differentiation of young leaves, fruiting branches and flower bud primordia, to reveal the process of individual development, morphogenesis and yield structure formation of cotton plants, so as to provide a theoretical basis for rational cotton cultivation. The relationship between cotton seed in addition to folding two cotyledons, the top bud primordium has been divided into 1-2 leaf primordia .When the two cotton seedling leaf flattening has been divided into four young leaves (including leaf primordia, the same below). Later, for each additional expansion leaves, the total score