不同类型大豆杂交后代主要农艺性状相关分析

CORRELATIVE ANALYSIS OF THE MAIN AGRONOMIC CHARACTERS OF THE PROGENIES OF CROSSES BETWEEN DIFFERENT TYPES OF SOYBEANS

本文研究了不同类型大豆杂交后代主要农艺性状间及产量性状与主要发育阶段的关系。结果表明，不同类型大豆杂交后代主要农艺性状存在明显差异。含有秣食豆血缘的组合较栽培大豆品种间杂交组合，在植株形态性状上表现为植株高大繁茂、粒茎比小的特点，在产量性状上表现为单株荚数和单株粒数多及百粒重小的特点。由于秣食豆种质的导入，植株高大繁茂与小的粒茎比存在相关遗传。大豆主要产量因子，在主要发育阶段存在相互制约现象。大豆各生育阶段与蛋白质含量的相关，与各生育阶段与油分含量的相关方向始终相反。单株荚数、单株粒数等产量性状与蛋白质含量与各生育阶段的相关方向相同。

s:Different types ofsoybean progenies wereused to study the correlation betweenthe gronomic characters and between yield characters and growing stages.The results suggested thatprogonieS of crosses including semicultivated soybean had higher Plant height,more luxuriantgrowth,more seeds and pods per Plant,lower seed-stem ratio and less 100-seeds weight thanthose of without semicultivated soybean as parents.Because of the introduction of germplasm of semicultivated soybean to the cultivated soybean,the more luxuriant growth had genetic correlation with lower seed-stem ratio.In the main reproductive stage,it seems that there exist restriction among the development on the main yield characters.The relationship of duration of main growing stage with protein content was discordant to that with oil content.The correlation of duration of main growing stage wigh main yield characters and that with protein content had the corresponding direction.