祁连山部分地区豆科植物根瘤菌资源调查  

Investigation of rhizobium resources of leguminous plants in partial regions of Qilian Mountains

作　　者：徐琳[1,2] 刘贤德 张勇[2] 张芬琴[2] 韦革宏[1] 

机构地区：[1]西北农林科技大学生命科学学院,陕西杨凌712100 [2]河西学院生物系,甘肃张掖734000 [3]甘肃水源涵养林研究院,甘肃张掖734000

出　　处：《干旱地区农业研究》2012年第4期236-241,共6页Agricultural Research in the Arid Areas

基　　金：国家自然科学基金(30670372);国家自然基金重点支持项目(91025002-D010106)

摘　　要：对祁连山部分地区豆科植物根瘤菌资源进行了调查,从9属32种野生豆科植物根部采集到根瘤样品427份。调查结果显示:调查区豆科植物资源种类丰富,所采集根瘤形状多为棒状、掌状及不规则状,颜色以粉色和黄色为主,着生部位主要为侧根;影响该区豆科植物结瘤的因素除与寄主植物生育阶段及遗传特性有关外,还与地形、土壤、气候、生物及人为因子等多种生态因素密切相关,其中地形及土壤是影响结瘤的关键因子。An investigation was made on the nodule and nitrogen fixation resources of wild leguminous plants in partial regions of Qilian Mountains,in order to provide valuable germplasm resources of rhizobial for agricultural production and ecological environment construction.Totally 427 nodule samples belonged to 9 genera and 32 species were collected.The results showed：（1） The most nodules were yellow or brown,sphericalor claviform and coralliform ,distributed on lateral root or fibre.（2） The ecological factors especially the landform,the humidity and fertility of soil were important factors that affected the nodulation.

关 键 词：豆科植物 根瘤菌资源 祁连山 生态因素 

分 类 号：Q948.9[生物学—植物学]