去荚对不同生长习性大豆固氮活性的影响  

Effect of Pod Removal on Dinitrogen Fixation of Soybean Plants Differing in Growth Habit

作　　者：李雪梅[1] 张利红[1] 王森林[1] 任娟[1] 苗以农[2] 

机构地区：[1]辽宁大学环境与生命科学学院,沈阳110036 [2]东北师范大学生命科学院

出　　处：《中国农学通报》2001年第6期30-32,共3页Chinese Agricultural Science Bulletin

摘　　要：选用有限型、亚有限型和无限型三种生长习性大豆进行去荚处理，测定固氮酶活性、酰脲和硝态氮含量。结果表明：去荚，有限型和亚有限型大豆固氮酶活性降低，而无限型的则无变化；去荚，使有限型和亚有限型大豆根瘤和幼茎中酰脲含量增加，无限型的变化不大；去荚，硝态氮在有限型大豆幼茎中积累，而亚有限型和无限型的则较对照有所降低。Three cultivated soybeans differing in their growth habit,i. e. determinate、subdeterminate and indeterminate types were removal the pods, dinitrogen-fixing activity、ureide and NO-3-N concentration were examined. Thee results were presented as follows: pod removal decreased the dinitrogen-fixing activity of determinate and subdeterminate types, in contrast pod removal had little effect on the dinitrogen-fixing activity of indeterminate type; pod removal increased ureide concentration in nodules and young stems of determinate and subdeterminate types, had no change in indeterminate type;pod removal increased NO-3-N concentration in young stem of determinate tpye, but decreased it in subdeterminate and indeterminate types.

关 键 词：大豆 固氮酶活性 酰脲 硝态氮 生长习性 去荚处理 

分 类 号：S565.1[农业科学—作物学]