摘要
为了探讨棉花叶片空间分布习性和产量的关系,通过调查不同密度棉花叶片的空间位置,以类内平均聚类法分析不同叶片空间的分布情况,得出单株叶片在不同尺度聚集成的类别数与对应尺度的双对数图在一定范围内存在直线关系(叶片聚集成的不同类别数与相应尺度成幂律关系)。可以用该直线斜率的绝对值和满足直线关系的范围描述叶片的空间分布特性。这些特性与产量的关系是:直线斜率绝对值增加,小区产量提高;满足直线关系的范围扩大以及直线区范围的初始值较大,则单株结铃数增多。
It is proposed in this paper for the relationship between the yield and the spatial distribution characteristics of leaves of cotton. The spatial distribution of different leaves of the cotton were analyzed by the average cluster analytical method. The results showed that there was the linearity relationship in certain scope of the bilogarithmic graph between the number of categories of assemblages of leaves and its scales per plant. It is possible to describe the spatial distribution of leaves with the absolute value of the straight line gradient and the range of the linearity relationship. The index of the linearity relationship described the yield characteristic, so it showed that the more the absolute value of the line slope was, the more the yields of plot was; The more the range of the linearity relationship was and the primary value of the range was, the more the number of bolls per plant were.
出处
《新疆农业科学》
CAS
CSCD
北大核心
2009年第5期988-992,共5页
Xinjiang Agricultural Sciences
基金
国家科技支撑计划项目(2006BAD01A05-28)
关键词
棉花
叶片聚集特性
产量
cotton
the characteristic of assemblages of leaves
yield
