[目的] 探讨茶树根际微生物的群落组成与茶叶质量的关系,为研制茶树菌肥提供参考.[方法] 对从信阳市浉河区贤山茶场、浉河港茶场、罗山县城郊茶场采集的土样中的茶树根际微生物进行分离鉴定.[结果] 浉河港茶场土样中的细菌数量显著多于罗山县茶场和贤山茶场,其茶叶质量最为上乘.浉河港茶场土样中的真菌种类与数量多于罗山县茶场与贤山茶场,其放线菌种类与数量明显较少.罗山县茶场和贤山茶场土样中的细菌都分属于11个属,浉河港茶场土样中的细菌分属于14个属.固氮菌属、氮单胞菌属和假单胞菌属出现的频度最高,微球菌属、土壤单胞菌属和拜叶林克氏菌属出现的频度次之,肠杆菌属、葡萄球菌属出现的频度最低.[结论] 信阳毛尖的茶叶质量与茶树根际微生物关系密切.%[Objective] The study aimed to discuss the relationship between the community composition of rhizosphere microorganisms of tea plant and tea quality so as to provide reference for preparing baterial manure for tea plant. [Method] The rhizosphere microorganisms of tea plant in the soil samples collected from Xianshan tea farm and Shihegang tea farm of Shihe district, suburb tea farm of Luoshan County in Xinyang City were isolated and identified. [Result] The bacterial quantity in the soil samples of Shihegang tea farm was significantly more than that of the tea farm in Luoshan County and Xianshan tea farm, its tea quality was best. The species and quantity of fungi in the soil samples of Shihegang tea farm were more than that of the tea farm in Luoshan County and Xianshan tea farm and its species and quantity of antinomycetes were obviously less. Both the bacteria in the soil samples of the tea farm of Luoshan County and Xianshan tea farm belong to 11 genus and that of Shihegang tea farm belong to 14 genus. The frequencies of Azotobacter, Azomona and Pseudomonas were highest, that of Micrococcus, Agromonas and Beijerinckia were secondary and that of Enterbacter and Staphylococcus were lowest. [Conclusion] The tea quality of Xinyang Maojian was closely related to the rhizosphere microorganisms of tea plant.
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