多叶型苜蓿分枝多叶性状的聚类与相关通径分析  

Clustering and Path Analysis on the Traits of Clover with Multi-branch and Multi-leaf

作　　者：敖学成 傅平 柳茜 罗燕 陈艳 

机构地区：[1]凉山州畜牧科学研究所,四川西昌615042

出　　处：《牧草与饲料》2011年第4期16-19,27,共5页Journal of Forage & Feed

摘　　要：试验随机测定多叶型苜蓿216个分枝，经分枝多复叶相关性状的聚类和相关通径分析，从6个明显不同类别的多复叶性状着生分布特点，分枝下步起节的三复叶起节数越多，分枝整体的多复叶类型是相对较少，起节复叶类型越高，整个分枝多复叶量会越多，得出分枝上多复叶叶片类型量越高，多复叶类型和量的表达相对越高；相关通径分析的回归方程和多数通径系数均达极显著水平，多元决定系数达到∑d=0．9887，性状间相关性程度呈现明显，综合判断出影响分枝上多复叶节数量的重要性状是分枝节数，4复叶节、5复叶节和6复叶以上的节数。Randomized trial measured leaf clover multi 216 branches, and related to clustering and path analysis of clover with muhi-braneh and multi-leaf. According to six different types of traits with significant health distribution, branch the next step up from the section of the three sessions, the more compound leaves, branches multi the whole compound leaf type is relatively small; the type of compound leaf sections from the higher, the branches will be more multi the amount of compound leaves. The results showed that multi-branched compound leaf blades on the type of the higher volume, muhi-eompound leaf type and amount of expression relative to the higher. Path analysis of the relevant regression equation and most path coefficients reached significant levels, multiple coefficient of determination to achieve ∑ d = 0.9887. Traits showed the significant correlation be tween the degrees. Determine the impact of integrated multi-branched compound leaf sections on a number of important traits are a few minor points, 4 compound leaf section, sections 5 and 6 compound leaf over sessions.

关 键 词：多叶型苜蓿 分枝多叶性状 聚类分析 通径分析 

分 类 号：S541[农业科学—作物学]