中国同一纬度不同进化类型大豆固氮特性的研究

本试验研究了中国同一纬度不同进化类型大豆主要生育时期的根瘤固氮酶活性、根瘤酰脲含量和幼茎段酰脲含量。结果表明，根瘤固氮酶活力表现为栽培大豆金元＞半栽培大豆吉５０４５１＞半野生大豆吉５０８５３＞野生大豆生１。根瘤和幼茎段酰脲含量也表现出与根瘤固氮活力类似的趋势。

Study on the Nitrogen Fixation Characteristics of the Same Latitude and Differently Evolutionary Types of Soybean

A series of nitrogen fixation characteristics, such as nodule nitrogen fixation activity, nodule ureide content and young stem ureide content were studied in the same latitude and differently evolutionary types of soybean. The results indicated that the nodule nitrogen fixation activity, nodule and young stem ureide contents were the highest in cultivated soybean and the lowest in wild soybean. The nodule nitrogen fixation activity, nodule and young stem ureide contents of semi-cultivated soybean were higher than those of semiwild soybean.