高油大豆杂交F2代品质性状与农艺性状的通径分析  

Path-coefficient Analysis of Quality Traits with Agronomic Characters of F_2 Generation in High Oil Soybean

作　　者：宋伟[1] 朱洪德[1] 李洪林 刘敏[1] 

机构地区：[1]黑龙江八一农垦大学,黑龙江大庆163319 [2]建三江农业科学研究所,黑龙江建三江156300

出　　处：《大豆科学》2009年第1期90-96,共7页Soybean Science

基　　金：国家高技术研究发展计划(863计划)资助项目(2003AA207170、2004AA207160);国家科技支撑计划资助项目(2006BAD01A04);引进国际先进农业科学技术计划(948计划)资助项目(2008-Z24);黑龙江省发展高新技术产业专项资金资助项目(FW06B902)

摘　　要：选择5个高油大豆品种(系)作为亲本,配成4个杂交组合。对杂交F2代进行品质性状与主要农艺性状的相关分析和通径分析。结果表明:脂肪含量与蛋白质含量、主茎节数、单株产量、百粒重呈极显著负相关;蛋白质含量与主茎节数、分枝数、单株荚数和单株粒数的相关性达到显著或极显著水平。单株产量与主茎节数、分枝数、单株荚数、单株粒数和百粒重达极显著正相关。单株产量对脂肪含量的直接负效应最大,单株粒数对蛋白质含量的直接负效应最大,单株荚数对蛋脂总量的间接负效应最大,单株粒数对单株产量的直接正效应最大。Five high oil content soybean were selected and four crosses were made. The correlation and path- coefficient of oil content,protein content and the major agronomic characters in F2were analyzed. The results indicated that oil content in F2 was extremely negatively correlated with protein content, node number of main stem, seed weight per plant and 100-seed weight in F2 ; the protein content had significant positive correlation with node number of main stem, pod number per plant and seed number per plant;seed weight per plant had significant positive correlation with nodes number of main stem, pod number per plant, seed number per plant and 100-seed weight. The direct minus effect of seed weight per plant to oil content and seed number per plant to protein content was the most significant,the total content of protein and oil was mainly affected by the indirect minus effect of pod number per plant,the most effective factor for seed weight per plant was seed number per plant.

关 键 词：高油大豆 品质性状 相关 通径系数 

分 类 号：S565.1[农业科学—作物学]