A THEORY TO EXPLAIN THE RELATIONSHIP BETWEEN CORN POPULATION AND GRAIN-YIELD
A THEORY TO EXPLAIN THE RELATIONSHIP BETWEEN CORN POPULATION AND GRAIN-YIELD
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DOI：
10.2135/cropsci1984.0011183x002400060032x
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发表时间：
1984-01-01
期刊：
影响因子：
2.3
通讯作者：
DUNCAN, WG
中科院分区：
文献类型：
--
作者：
DUNCAN, WG
本文的目的是为了更好地理解种植模式中玉米植物之间竞争的本质。竞争被假设为包括两个组成部分，拥挤和拥挤对产量的影响。种植模式内的拥挤是归因于每株植物的独立拥挤的总和，作为其与目标植物的距离的函数。拥挤对产量的影响是基因型和环境的函数。该理论解释了先前观察到的玉米籽粒产量和植物种群之间的精确数学关系，以及为什么单位面积玉米籽粒产量随着植物种群的增加而达到最大值。相对籽粒产量是独立的基因型和环境给出了广泛的行宽和植物种群。
The objective of the paper is to added to development of a better understanding of the nature of competition among corn plants in planting patterns. Competition is hypothesized to consist of 2 components, crowding and the effect of crowding on grain yield. Crowding within a planting pattern is the sum of the independent crowding attributed to each plant as a function of its distance from the target plant. The effect of crowding on yield is a function of genotypes and environment. The theory explains the precise mathematical relationships previously observed between corn grain yield and plant population and why corn grain yield per unit area goes through a maximum as plant population increases. Relative grain yields that are independent of genotype and environment are given for a wide range of row widths and plant populations.