硝酸镧对玉米种子萌发及其过氧化物酶活性的影响

Effects of La(NO_3)_3 on the Seed Vigor and the Peroxidase Activity of Corn

用不同浓度的 L a(NO3) 3 溶液处理的玉米种子 ,与对照相比 ,在一定浓度范围内能促进种子萌发及其幼苗生长 ,其根长、芽长、根鲜重最大增长率分别为 4 1.0 5% ,15.3% ,14.7% ,同时 ,采用愈创木酚法测定过氧化物酶活性 ,其酶活增长最大可达 4 9.5% .

Treated seed of corn with the range of some concentrations of La(NO 3) 3, seed germination and shoot growth can be stimulated comparing with the comparison. The largest increase rate of length of root、length of bud and weight of the root, are 41.05 %、15.3 %、14.7 %, respectively. The redox reaction of quaiacal with peroxide of hydrogen, is used for determination of poroxidase activity the largest increase rate is 49.5 %.