陆地棉种子发芽率影响因素研究  

Study on the influencing factors about seed germination ratio of upland cotton

作　　者：刘占国[1] 王晓凯 秦晓平 张灿 

机构地区：[1]河北农业大学农学院,河北保定071000 [2]石家庄市希普种业有限公司,河北石家庄050000

出　　处：《河北农业大学学报》2010年第5期22-25,共4页Journal of Hebei Agricultural University

摘　　要：应用生产上推广的6个陆地棉品种,以最后一次霜前花(10月10～25日)为样本,研究子指、百壳重、百仁重、种壳率、种仁率、仁/壳和发芽率这7个种子性状。结果表明:这7个性状在品种间存在着极显著差异,其中百仁重、种壳率、种仁率、仁/壳与发芽率之间存在着显著的相关和显著的直线回归关系。根据其回归关系,当种子棉的种仁率高于60.66%和仁/壳高于1.545时,发芽率才有可能达到80%以上。Seven seed traits of six upland cotton varieties were studied.The result indicated that significant difference existed among the varieties for seed index,hundred shell weight,hundred kernel weight,shell percentage,kernel percentage,kernel/shell and germination ratio.The correlation coefficient and the linear regression coefficient were significantly correlated between hundred kernel weight,shell percentage,kernel percentage and kernel/shell with the germination ratio.When the kernel percentage was over 60.66% or the kernel/shell was 1.545 more,the germination ratio could be over 80% based on the regression equation.

关 键 词：陆地棉 种子发芽率 影响因素 

分 类 号：S562[农业科学—作物学]