2个菜豆品种苗期生长对外源铬的响应  

Response of Two Varieties of Kidney Bean to Exogenous Cr in the Seedling Stage

作　　者：杨和连[1] 张百俊[1] 李贞霞[1] 陈碧华[1] 

机构地区：[1]河南科技学院,河南新乡453003

出　　处：《贵州农业科学》2009年第6期224-225,共2页Guizhou Agricultural Sciences

基　　金：河南省农业结构调整与产业化发展专项资金项目"双万亩蔬菜产业化生产示范基地建设"[豫财办农(2005)219号]

摘　　要：采用土培法,研究了不同浓度的外源铬对2个菜豆品种幼苗生长的影响。试验表明:处理组Ⅲ(15 mg/kg),Ⅳ(25 mg/kg)的外源铬对2个菜豆品种幼苗的株高、叶面积、主根长有显著或极显著的抑制作用。各项指标综合分析表明,特选97-5菜豆比四通2号菜豆对铬敏感。Two kidney bean varieties was treated with different concentration of exogenous Cr solution（0, 2, 8, 15, 25 mg/kg）in soil to test the effect of exogenous Cr to the growth of seedling. The results showed that higher level of exogenous Cr solution（15, 25 mg/kg）could significantly and highly significantly restrain the seedling height, leaf area and main root length. The integrated index evaluation result showed that the Texuan 97-5 is more sensitive to Cr than Sitong zhao.

关 键 词：菜豆 外源铬 苗期 生长 

分 类 号：S643.1[农业科学—蔬菜学]