小麦株高与性状组合关系的多元分析

本文以株高差距甚大的两个亲本间杂交分离世代为材料,针对小麦矮化后可能影响主要经济指标的茎节、叶片部分的40余个性状进行了逐步回归分析。初步认为株内整齐度、叶间距比、下部节间重量比、叶角度和叶片宽/长比等可以作为改良矮秆、半矮秆小麦产量的选种指标。

A MULTIVARIATE ANALYSIS OF THE INTERRELATIONSHIP BETWEEN STATURE AND OTHER CHARACTERISTICS IN WHEAT

Using segregating progenies of a cross between a tall-statured and a short-statured wheat as materials,the interrelationship between sta- ture and more than 40 other characteristics,related with internode and leaf characters that might influence the most important economical parameters when the stature is shortened,was studied by step regres- sion analysis.The result indicated that unifomity among tillers,ratio between neighboring inter-leaf-distances,ratio between the weights of neighboring lower internode...