不同类型大豆种质资源共生固氮特性的鉴定与评价  

IDENTIFICATION AND EVALUATION OF GERMPLASMS FROM DIFFERENT SOYBEAN TYPES FOR SYMBIOTIC N 2 FIXATION CHARACTERS

作　　者：徐巧珍[1] 张学江[1] 江木兰[1] 李志玉[1] 

机构地区：[1]中国农业科学院油料作物研究所

出　　处：《大豆科学》1997年第3期210-217,共8页Soybean Science

基　　金：国家自然科学基金

摘　　要：对来自我国南方２００份大豆种质资源的田间结瘤固氮鉴定和温室人工接种鉴定结果表明：１．春、夏、秋不同大豆类型和同一类型不同品种间的结瘤、固氮作用均存在显著（ｐ＜０．０５）差异，证明了高结瘤固氮品种选择的可能性；２．不仅共生固氮性状间存在显著相关，而且分别与农艺学、物候学性状显著相关，为在我国南方不同季节、不同耕作制度条件下研究以高固氮、高产为目的的遗传、生理基础提供了基本数据；３．三种大豆类型的农艺学、物候学和共生固氮性状的变异程度为夏＞秋＞春，这为大豆遗传多样性和分类补充了新的数据；４．评价出一些具有优良性状的春、夏、秋大豆品种可供生产利用和进一步研究。Through identification and evaluation of 200 accessions by field experiment and 100 of 200 accessions by greenhouse experment for agromomic, phenological and symbiotic characters. The results indicated: 1). Significant differences (p<0.05) were present in nodulation and N 2 fixation by both different soybean types and different cultivars. These suggested it is possible that soybeans can be selected for improving nodulation and N 2 fixation. 2). Correlations were significant (p<0.05) not only among symbiotic characters themself, but also between symbiotic characters and agronomic/phenological characters. The correlation may provide scientific data for researches in genetic and physiolgical bases for improving N 2 fixation and high yield under different condition of seasons and cropping systems in Southen China. 3).On the whole, the three soybean types were summer>autumn>spring in parameter variations of agronomic, phenological and symbiotic characters. It may be complement for genetic diversity and classifcation of soybeans. 4). Some better cultivars of spring, summer and autumn soybeans have been evaluated which can be used in production and research.

关 键 词：大豆 农艺性状 物候学性状 共生特性 种质资源 

分 类 号：S565.102[农业科学—作物学]