摘要
本文对20个二棱大麦品种(系)的10个性状进行了相关、通径分析并利用通径系数测验法建立多元回归方程。提出了高产二棱大麦的形态模式:以增加株穗数的“多穗型”为主攻目标,兼顾穗粒数和粒重,配合适当的株高(中、矮秆)、大旗叶、大旗叶鞘、短穗颈和长芒等性状。
In the paper correlation and path-way study was made of the relationsamong ten characters from twenty two-rowed barley cultivars and strainsand a multiple regression equation was established based upon the pathwayparameters.The morphological mode of a high-yielding two-rowed barleywas considered as more spike number per unit area achieved by increasedspikes per plant with proper spike kernel number and kernel weight,suit-able stature(dwarf or semi-dwarf),a large flag leaf and sheath,long awnsand short spike neck.
出处
《莱阳农学院学报》
1989年第3期23-28,共6页
Journal of Laiyang Agricultural College
关键词
二棱大麦
大麦
农艺性状
单株
产量
two-rowed barley
agronomical characters
grain yield per plant
