The relationship amongthe indices was analyzed.[Result]The nitrogenase activities inthe sugarcane varieties introduced fromBrazil were higher as compared to the native ones in general.

• [结果]不同甘蔗品种的固氮活性不同,其总体表现为巴西引进的甘蔗品种的固氮酶活性都高于当地主栽品种;