不同根瘤菌接种对草原3号杂花苜蓿幼苗生长的影响  

Effect of Different Rhizobia Inoculated on Seedling Growth of Medicago varia Martin.cv.Caoyuan No3.

作　　者：钱亚斯 石凤翎 闫伟 乔雨 张雨桐 Qian Yasi;Shi Fengling;Yan Wei;Qiao Yu;Zhang Yutong(College of Grassland Resources and Environment,Key Laboratory of Grassland Resources of the Ministry of Education,Key Laboratory of Forage Cultivation,Processing and High Efficient Utilization of the Ministry of Agriculture and Rural Affairs,Inner Mongolia Autonomous Region Key Laboratory of Grassland Management and Utilization,Inner Mongolia Agricultural University,Hohhot 010019,China)

机构地区：[1]内蒙古农业大学草原与资源环境学院,草地资源教育部重点实验室,农业农村部饲草栽培、加工与高效利用重点实验室,内蒙古自治区草地管理与利用重点实验室,内蒙古呼和浩特010019

出　　处：《草原与草业》2020年第1期29-35,共7页Grassland and Prataculture

基　　金：内蒙古自治区草原英才“内蒙古高原乡土草种质资源遗传改良与利用”创新团队。

摘　　要：采集不同地区苜蓿互接种族内的根瘤菌株,以不同菌株浸泡接种草原3号杂花苜蓿(Medicago varia Martin.cv.Caoyuan No3.)发芽露白后的种子,播种在无菌椰皮基质中,从第20d到49d,每7d对其叶片数、叶片宽、幼苗高度、根部结瘤量等指标测定一次,探讨各菌种对幼苗生长的影响。结果表明:在15个菌株中,接种来源于“巨能7紫花苜蓿”(SJN)、“白花草木樨”(HK)和商品根瘤菌(DZ)的菌株对草原3号杂花苜蓿幼苗生长有显著的促进作用。Rhizobia strains from cross-inoculation groups of alfalfa were collected from different areas;the germinating seeds of the Medicago varia Martin.cv.Caoyuan No3 were inoculated with different strains,and were seeded in coconut sterile substrate.The number and size of leaves,the height of seedlings,the number of root nodules were measured every 7 days from the 20th day to 49th day after seeding.The effects of different strains on the growth of seedling were discussed.The result showed that among 15 strains of the alfalfa intercropping race,the strain from SJN7.HK and DK significantly improved the growth of Medicago varia Martin.cv.Caoyuan No3 seedling.

关 键 词：苜蓿互接种族 根瘤菌 草原3号杂花苜蓿 幼苗生长 

分 类 号：S54[农业科学—作物学]