菌根真菌和根瘤菌接种对紫花苜蓿和无芒雀麦混播牧草生物量的影响  

Effect of Arbuscular Mycorrhizal Fungi and Rhizobium Inoculation on the Biomass of Alfalfa and Smooth Brome in Mixed Culture

作　　者：谢开云[1] 孙伶俐 张力文 郑万菊 万江春[1] 赵云 XIE Kai-yun;SUN ling-li;ZHANG Li-wen;ZHENG Wan-ju;WAN Jiang-chun;ZHAO Yun(Xinjiang Key Laboratory of Grassland Resources and Ecology and Ministry of Education Key Laboratory for Western Arid Region Grassland Resources and Ecology,College of Grassland and Environment Sciences,Xinjiang Agricultural University,ürümqi,Xinjiang 830052,China;Grassland Station of Fukang City,Fukang,xinjiang 831500,China;China Animal Husbandry Group,Beijing 100070,China)

机构地区：[1]西部干旱荒漠区草地资源与生态教育部重点实验室,新疆农业大学草业与环境科学学院,新疆乌鲁木齐830052 [2]阜康市草原站,新疆阜康831500 [3]中国牧工商集团有限公司,北京100070

出　　处：《草地学报》2021年第1期182-188,共7页Acta Agrestia Sinica

基　　金：新疆维吾尔自治区高校科研计划项目(XJEDU2018Y022);国家自然基金(31660604);新疆农业大学博士后流动站项目资助。

摘　　要：丛枝菌根真菌(Arbuscular mycorrhizal fungi,AMF)和根瘤菌是自然界存在的两类重要的共生微生物,分别能与宿主植物形成丛枝菌根和根瘤的共生体系,对宿主植物的生长具有重要影响。本研究通过建立丛枝菌根真菌-禾本科牧草和丛枝菌根真菌-豆科牧草-根瘤菌的共生体,研究AMF和根瘤菌接种对混播中紫花苜蓿(Medicago sativa)和无芒雀麦(Bromus inermis Leyss)生长的影响。结果表明:与CK相比,单独接种根瘤菌处理下单播和混播的紫花苜蓿地上单株生物量分别提高了65.42%和53.41%,地下单株生物量提高了96.66%和114.42%。单独接种AMF处理下单播和混播的紫花苜蓿地上单株生物量分别提高了35.33%和23.20%,地下单株生物量提高了40.00%和46.45%。而AMF和根瘤菌双接种处理下单播和混播的紫花苜蓿地上单株生物量分别提高了105.66%和185.64%,地下单株生物量分别提高了167%和121%。综上所述,AMF和根瘤菌双接种对紫花苜蓿生物量的促进作用具有协同效应。Arbuscular mycorrhizal fungi(AMF)and rhizobia are two important symbiotic microorganisms in nature.They could form symbiotic systems of arbuscular mycorrhiza and root nodules with host plants respectively,which have an important impact on the growth of host plants.In this study,the symbiosis of arbuscular mycorrhizal fungi-gramineous forage and arbuscular mycorrhizal fungi-legume-rhizobium were established to study the effects of AMF and rhizobium inoculation on the forage biomass of alfalfa and smooth brome in mixed sowing.The results showed that,compared with CK,the aboveground biomass of alfalfa inoculated with rhizobium in pure and mixed sowing increased by 65.42%and 53.41%,and the belowground biomass increased by 96.66%and 114.42%,respectively,for each individual.The aboveground biomass of alfalfa per individual increased by 35.33%and 23.20%respectively,and the belowground biomass increased by 40%and 46.45%,respectively,when inoculated with AMF.The aboveground biomass of alfalfa inoculated with AMF and rhizobium increased by 105.66%and 185.64%in pure and mixed sowing for each individual,and the belowground biomass increased by 167%and 121%,respectively.It can be seen that the double inoculation of mycorrhizal fungi and rhizobia has a synergistic effect on the biomass of alfalfa.

关 键 词：丛枝菌根真菌(AMF) 根瘤菌 紫花苜蓿 无芒雀麦 混播 

分 类 号：S963.223.3[农业科学—水产养殖]