作　　者： ; ; ; ; ;

机构地区： 山西省农业科学院

出　　处： 《中国生态农业学报》 2007年第3期120-122,共3页

摘　　要： 费氏中华根瘤菌（Sinorhzobium fredii）的区域分布与抗逆特性比较明显，在山西省石灰性土壤环境条件下，其数量分布达5100～5100000个／g（土），约占土著大豆根瘤菌的99．4％。该菌群与当地晋豆品种的自然结瘤率达80％以上，是山西省高感土著大豆根瘤菌的主要类群和资源优势，而与美国大豆“Osumi”等品种不亲和，几乎不结瘤。供试高效费氏中华根瘤菌株与当地“晋豆19”与“晋豆20”等主栽品种具有较好的结瘤固N效果。费氏中华根瘤菌的产酸性能有利于在山西省碱性土壤中生存，其活化根际养分效应与结瘤固N效果可能同等重要。 There is a wide distribution of Sinorchizobium fredii, a stress resistant rhizobium in Shanxi Province. The quantified number of Sinorchizobium fredii is between 5100- 5100000/g of soil, about 99.4% of the total indigenous soybean rhizobial population in Shanxi. These rhizobia strains are found to nodulate on local ＂Jindou＂ soybean cultivars at a minimum level of 80% ,but not at all on western ＂Osumi＂ soybean cultivars. Effective strains of S. fredii are observed to have good inoculation and nitrogen fixing capability on local soybean cultivars ‘Jindou 19＇ and ‘Jindou 20＇. They are also found to have acid production activity and well adapted to the alkaline soils of Shanxi. This character is observed to activate rhizospheric nutrition which may be equally important in the nodulation and fixation activities of the rhizobia strains.

关 键 词： 山西 费氏中华根瘤菌 数量分布 特性

领　　域： [农业科学] [农业科学]