应用SAS/Graph模块分析棉铃空间分布情况

为解决棉铃空间分布传统分析展示不直观问题,运用SAS/Graph模块,可视化地展示棉铃空间分布情况。结果表明:中部果枝第一节位是成铃的关键区域,其次为中部果枝的第二节位;棉铃空间分布试验的3种密度均表现为中部果枝成铃率较高,下部果枝和上部果枝随密度增加成铃率降低,且随着密度增大成铃集中区域的主茎节位数下移。因此,为提高棉花产量,在保证中部果枝第一节位成铃的前提下,可从提高初始1~2台果枝的成铃率入手,当棉田实际保留株数较少时,可采取适当措施来保证果枝第二节位的成铃,不鼓励单果枝成铃三个及以上。

Using SAS/Graph Module to Analyze the Spatial Distribution of Cotton Bolls

In order to solve the problem that the traditional analysis and display of cotton boll spatial distribution is not intuitive,the SAS/Graph module is used to visually display the spatial distribution of cotton bolls.The results showed that the first node of the middle fruit branch was key area for boll formation,followed by the second node of the middle fruit branch.The three densities of cotton bolls the spatial distribution test showed that rate boll formation in the middle fruit branch was higher,the rate of lower fruit branches and upper fruit branches decreased with the increase of density,and the number of nodes of the main stem in the boll concentrated area decreased with the increase of density.Therefore,in order to increase cotton yield,under the premise of ensuring the boll formation at the first node of the central fruit branch,we can start by increasing the boll formation rate of the initial 1 to 2 fruit branches.When the actual number of remaining plants in the cotton field is small,appropriate measures can be taken to ensure the formation of bolls at the second node of the fruit branch,and three or more single-fruit branches are not encouraged to form bolls.