铈元素和Zn^(2+)对小麦老化种子发芽及幼苗生长的影响  

Effects of Ce(NO)_3 and Zn^(2+) on the Germination of Aged Wheat Seed

作　　者：李广领[1] 汤菊香[1] 

机构地区：[1]河南科技学院,新乡453003

出　　处：《种子》2005年第4期21-22,25,共3页Seed

基　　金：河南省自然科学基金资助项目(0311030300)。

摘　　要：适宜浓度的Ce(NO)3和Zn 能明显提高小麦老化种子发芽率、发芽指数、活力指数、幼苗根系活力、淀粉酶活性及幼苗长度,且能适当降低其种子浸泡液的电导率,其中以0. 45% Ce(NO)3 +0. 05% ZnSO4效果最好。Suitable concentration Ce(NO) 3 and Zn 2+ can improve obviously germination percentage , sprout index , vigor index , root system vigor of seedling , amylase activation and height of seedling of aged wheat seed, and can reduce aptly electrical conductivity of seed soaking liquid, The result shows 0.05% ZnSO 4 and 0.45% Ce (NO ) 3 is the best in ten experiment combination doses.

关 键 词：ZN^2+ 幼苗生长 老化 小麦 铈元素 种子发芽率 淀粉酶活性 ZnSO4 适宜浓度 发芽指数 活力指数 根系活力 幼苗长度 电导率 浸泡液 

分 类 号：S512.1[农业科学—作物学] TS255.5[轻工技术与工程—农产品加工及贮藏工程]