晋大52×晋大57杂交后代群体贮藏蛋白与产量及品质性状关系的分析

Research on the Correlation of Storage Protein,Yield and Quality Characters of the Soybeans(Jinda 52 × Jinda 57)Hybrid Progeny Population

选用晋大52×晋大57杂交亲本和后代群体为试验材料,对杂交亲本及后代群体的贮藏蛋白各亚基间、亚基与品质性状、亚基与产量的关系进行了相关分析和通径分析。结果表明:7S球蛋白相对含量与11S球蛋白相对含量呈极显著负相关(-0.98),7S总含量与各组分都与脂肪含量呈不同程度正相关,7S组分间α'与β亚基呈极显著正相关(0.70),α亚基与产量呈显著正相关(0.53);通径分析显示,α'亚基含量对产量直接通径系数为负值(-0.626 4);α亚基和β亚基含量对产量直接通径系数均为正值(0.144 2和0.275 7),并都通过脂肪含量的提高对产量提高有明显贡献(0.240 8和0.359 8)。

The correlations between different storage protein subunits,subunits and quality characters,subunits and yield of parents and progeny population Jinda 52 × Jinda 57 were analyzed by correlation analysis and path analysis. The conclusions were as follows： the significant negative correlation between 7S globulin and 11 S globulin was observed at 0. 01 level（-0.98）. The positive correlation between 7S globulin or it＇s subunits and fat was observed at different level. The α＇ and βsubunits of 7S globulin were significant positive correlated at 0. 01 level（0. 70）. The α subunit and yield were significant positive correlated at 0. 05 level（0. 53）. The path analysis results showed the direct path coefficient from α＇ subunits to yield was negative（- 0. 626 4）,but from α and β subunits were positive（0. 144 2 and 0. 275 7）,and both them through the fat path made positive contribution to yield（0. 240 8 and 0. 359 8）.