甜菜不同生长期叶柄锤度的变化与主要性状问的相关分析

通过对甜菜不同生长期叶柄锤度与产质量性状间的相关分析看出,在营养生长期甜菜叶柄锤度与根产量、产糖量二性状的相关不密切,而同褐斑病病情呈负相关,同块根含糖率呈正相关,且到生育后期达显著或极显著水平.通过对甜菜营养生长期叶柄锤度的测试,进行育种材料的高糖性状的预选,具有一定的实际意义。

Variations of Petiole Brix and Correlation Analysis on Main Characters during Various Growth stage in Sugarbeet

It shown that the correlation between petiole brix and root yield, sugar yield were not closed during vegetative growth stage by the correlation analysis of the petiole brix, yield and quality of sugarbeet in various growth stages, and it had negative correlation with the state of leaf spot disease, and had positive correlation with sugar content in beet root, it could be significant or extremely significant until the late growth stage. It had the real sense for preselection of high sugar content in breeding materials by the tests of petiole brix during the vegetative growth stage.