大豆种间杂交新种质遗传潜力评价

通过对野生大豆（Ｇ．ｓｏｊａ）、栽培大豆（Ｇ．ｍａｘ）种间杂交后代新种质，与不同类型栽培大豆、野生大豆Ｇｒｉｆｆｉｎｇ双列杂交Ｆ２代主要农艺性状遗传参数的估算，不同类型亲本间一般配合力差异极显著，株高、单株荚数、单株粒重一般配合力效应值正向优势居前两位的是野生大豆ＺＹＤ３２８、种间杂交后代品系８－４４－３，论述了野生大豆及其种间杂交后代品系，对改良大豆品种基因的拓宽及有益基因的累加，具有很大的遗传

EVALUATION OF INHERITANCE POTENTIAL TO NEW GERMPLASMS OFINTERSPECIFIC CROSSES IN SOYBEAN

Diallel crossing was made by using new germplasms of interspecific crosses in wold (G. soja)and cultivated soybean (G. max) with different type cultivated soybean and wold soybean. Thepeaxneter of inheritance of main agronomic characters of F2 generation was evaluated. The re-sults showed that there were significant difference in general combining ability (GCA) of differ-ent parents. Wold soybean ZYD328 (P6) and line 8-44-3 (P5) of interspecific crosses were thefirst and second respectively in GCA of plant height, pods number of single plant and seed weightof single plant, wold soybean and lines of interspecific crosses was very important to reclamationand accumulation of gene of improving varieties. The results also showed that the potential wasthe same in interspecific cross and between cultivated soybean crosses. It was possible for somecharacters of high yield, good quality and resistance changing varieties dominancy by crossingand backcross.