豫油4号产量构成因素及丰产稳产性分析  

Analysis of Yield Components, Yielding Ability and Stability of rape Yuyou No. 4

作　　者：文雁成[1] 郭素青[2] 田保明[1] 张书芬[1] 刘建民[1] 王建平[1] 

机构地区：[1]河南省农业科学院经济作物所,郑州450002 [2]河南省农业科学院实验中心,郑州450002

出　　处：《种子》1997年第1期10-13,共4页Seed

摘　　要：应用通径分析和典型相关分析对双低油菜来交种豫油4号的产量构成因素进行了分析。结果表明：株高、分技部位、一次有效分枝数、单株角果数、单株产量、用粒数、千粒重是其产量的主要构成因素。其中分校部位对产量的效应为负值．南长和千粒重对产量的作用小，其余5个性状对产量的通径系数均较大．且为正值。与双低常规品种豫油2号和高芥政、高硫武杂交税秦油2号相比，豫油4号产量结构更趋合理。豫油4号的农艺性状与经济性状间呈显著相关关系，其丰产性、稳产性好，适应性广。Yield components of Yuyou No. 4 with low erucic acid content and low g1lucosinolates content were analyzed bypath analysis and analysis of canonical correlatoon. The results showed that plant height、 branch position、 number ofprimary effective branches,number of pods per plant、 plant yield、 grain number per pod、 grain weogh per 1000 grainsand pod length were the main yield components. The path coefficient of branch position position to yield was negative,the path coefficient of pod length and grain weigh of 1000 grains were very small. The Path coefficient of the otherfive characters were all big and Positive. Compared with double low variety Yuyou No. 2 and hybrid Qingyou.No. 2With high orucic acid content and high glucosinolates content. Yuyou No. 4 had more reasonable yield conponents.There was significant correlation between agronomic characters and economic characters of Yuyou No. 4. It had highyielding ability and good Stability.

关 键 词：油菜 杂交种 产量构成因素 丰产性 稳产性 

分 类 号：S565.4[农业科学—作物学]