野生大豆（Glycine soja）酰脲含量与根瘤固氮活力的关系

野生大豆（Ｇｌｙｃｉｎｅｓｏｊａ）酰脲含量与根瘤固氮活力的关系朱长甫，苗以农，刘学军，许守民（东北师范大学生命科学学院，长春１３００２４）郑惠玉，徐豹（吉林省农业科学院大豆研究所，公主岭１３６１００）关键词：野生大豆，固氮活力，酰脲，蛋白质根据固氮豆...

The Relationship Between the Ureide Contents and Nodule Nitrogen Fixation Activities in Wild Soybean (Glycine soja) Lines

Ureide contents and nitrogen fixation activities in eight field-grown wild soybean lines were tested. Results showed that nodule nitrogen fixation activities were higher in pod-setting stage (Fig. 1 and Table 1 ) whereas nodule and middle-upper stem ureide contents were higher in late POd-filling stage (Figs. 2,3 and Table 1). Ureide contents in nodules and middle-upper stems of eight wild soybean lines with different seed protein contents were significantly positively correlated with nodule nitrogen fixation activities (Tables 1, 2). Significantly positive correlations between nodule nitrogen fixation activities, middle-upper stem ureide contents and seed protein contents were observed (Tables 1, 2). Middleupper stem ureide contents may be used as an index of nitrogen fixation capacity in wild soybean lines.