机插水稻产量与产量相关性状及农艺性状的相关性研究

[目的]探究水稻产量与其相关性状间的相关性。[目的]以有代表性的44块田作为样本点,采集影响水稻产量的有关性状,并分为产量相关性状组和农艺性状组,系统运用简单相关、复相关和典型相关分析等方法进行全面分析。[结果]产量与产量相关性状组之间存在极强的相关性,其中与穗数和穗粒数的相关性较强;产量与农艺性状组的相关性并不显著,但农艺性状组可通过产量相关性状组间接作用于产量;在一定范围内,二次枝梗数越多,倒1叶长度越短,产量也越高。[结论]实际生产中,同时增加有效穗数和穗粒数是夺取高产、超高产的根本途径,但在高产水平上实现更高产,关键要在足穗数的基础上增加穗粒数。

Research on Correlation Between Yield and Yield-related Traits and Agronomic Characters in Machine-transplanted Rice

[Objective] To explore the correlation between rice yield and its related characters.[Method] We took the representative 44 plots as the sample points,the paper collected the related traits affecting the yield of rice,and divided it into yield-related traits and agronomic traits,systematically useds simple correlation,complex correlation and canonical correlation analysis.[Result] It had a strong correlation between yield and yield-related traits,among which the correlation between spike number and spike grain number was the strongest,the correlation between yield and agronomic trait group was not significant,but the agronomic trait group could indirectly affect the yield by yield-related trait group.In a certain range,the more secondary branches,the shoter length of flag leaf,and the higher yield.[Conclusion] In actual production,increasing both effective panicle number and grain number per area is the basic way to capture high yield and super yield,but to achieve more high yield in a high level,the key is to increase the number of grains on the basis of enough spikes.