草原与草坪2025，Vol.45Issue(2)：108-114,7.DOI:10.13817/j.cnki.cyycp.2025.02.012
深绿木霉T2处理土壤对紫花苜蓿光合作用的影响
Effects of Trichoderma atroviride T2 treatment on photosynthesis of alfalfa
摘要
Abstract
[Objective]To investigate the effect of Trichoderma atroviride T2 treatment on the photosynthesis of alfalfa.[Method]The soil of alfalfa potted seedlings was treated with Trichoderma atroviride T2 spore suspen-sion at a concentration of 1×107 spores/g.The effects of T2 spore suspension on chlorophyll content and photosyn-thetic parameters of alfalfa seedlings were measured under conditions of 70%soil moisture and an ambient tempera-ture of 30℃,respectively.[Result]Soil treatment with T2 significantly enhanced both chlorophyll content and pho-tosynthetic rate in alfalfa seedlings.Compared with the control,the chlorophyll content and photosynthetic parameters of alfalfa seedlings in the treated group had the greatest difference on the 7th day of T2 soil treatment.Specifically,the contents of chlorophyll a,chlorophyll b,total chlorophyll,net photosynthetic rate and water utilization rate were in-creased by 86.96%,81.58%,89.66%,104.06%and 174.05%,respectively.In contrast,carotenoids,stomatal con-ductivity,and transpiration rate decreased by 44.74%,32.53%and 33.93%,respectively.[Conclusion]Soil treat-ment with T.atroviride T2 significantly promotes the photosynthetic efficiency and water use of alfalfa,thereby en-hancing its growth and development.关键词
深绿木霉T2/土壤定殖/苜蓿/叶绿素含量/光合参数Key words
Trichoderma atroviride T2/soil colonization/alfalfa/chlorophyll content/photosynthetic parameter分类
农业科技引用本文复制引用
侯变变,梁巧兰,魏列新,陈应娥,芮静..深绿木霉T2处理土壤对紫花苜蓿光合作用的影响[J].草原与草坪,2025,45(2):108-114,7.基金项目
国家自然科学基金项目(31860039) （31860039）
