锰和锌对盐渍土中水稻幼苗生长的影响  

Effect of Zn^(2+) and Mn^(2+) on the Salt Tolerance of Rice Seedling Growth

作　　者：王振河[1] 汤菊香[1] 代海芳[1] 韩静[1] 徐新娟[1] 陈永涛[1] 

机构地区：[1]河南科技学院生命科技学院,河南新乡453003

出　　处：《湖北农业科学》2007年第4期547-549,共3页Hubei Agricultural Sciences

基　　金：河南省自然科学基金项目(0311030300)

摘　　要：以湖南粳稻(HN-1)为试验材料,用不同浓度Mn2+和Zn2+混合液浸种,分析Mn2+和Zn2+与水稻幼苗生长耐盐性的关系,以探讨Mn2+和Zn2+对盐渍土水稻幼苗生长的影响。通过对幼苗长度、根系活力、叶片叶绿素含量、过氧化物酶(POD)活力及脯氨酸含量等指标进行测定,结果表明,Mn2+和Zn2+混合液对水稻幼苗生长的耐盐性有较显著的影响,其中以1 800mg·L-1 Mn2++1 000 mg·L-1 Zn2+混合效果最佳。In this experiment,the seed of Hunan Rice（HN-1）was treated by different combination of Mn^2＋ and Zn^2＋,and used for studying the effect of Mn^2＋ and Zn^2＋ on the salt tolerance of paddy rice seedling growth. The results showed that the mixture of Mn^2＋ and Zn^2＋ improved some characteristics such as the seedling length,activity of root system, chlorophyll content, POD activity and the content of proline. Among all the treatments, the combination of 1 800 mg·L^-1 Mn^2＋ and 1 000 mg·L^-1 Zn^2＋ had the best effect.

关 键 词：锌(Zn^2+) 锰(Mn^2+) 水稻 幼苗 耐盐性 

分 类 号：S156.45[农业科学—土壤学]