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通过无菌砂土管培养试验 ,从 2 30株紫云英根瘤菌中筛选出 9个对水稻“汕优 6 3”有一定促生作用的菌株。采用上述菌株及本室先期分离的高效固氮紫云英根瘤菌 JS5 A16在无菌土杯栽条件下接种水稻 ,发现 JS3A18- 3、JX1A10 - 1、ZJ11A6 - 2、HN6 A4 - 1、HN10 A8- 1、S14的促生作用均很显著。但在有菌土盆栽试验条件下 ,只有 HN10 A8- 1、JX1A10 - 1两个菌株对“汕优 6 3”的分蘖及植株鲜重、根鲜重等方面表现出明显的促进作用。
Nine strains of Rhizobium japonicum, which had a certain promoting effect on rice “Shanyou 6 3”, were screened out from 230 strains of Rhizobium fredii through sterile sand soil tube culture experiment. The strain JS3A16 was isolated from Rhizobium leguminosarum JS5 A16, which was isolated from our laboratory and isolated from our laboratory, and was inoculated into rice under aseptic soil cup culture. The results showed that JS3A18-3, JX1A10-1, ZJ11A6-2, HN6 A4-1, HN10 A8- 1, S14 role in promoting growth are significant. However, only two strains of HN10 A8-1 and JX1A10 - 1 showed significant promotion on the tillering, plant fresh weight and root fresh weight of “Shanyou 6 3” under the conditions of bacterial pot experiment.