摘要： 1996～1998年间自棉花根际土壤中分离到了一株植物根际促生菌(PGPR)拮抗菌XX-3,经过多点小区试验,结果显示,XX-3不仅具有很强的抗病效果,而且具有明显的促生作用。当每株接种量为5×10~8 cfu时,增产可达9.5％～26.5％,抗病效果可达50％以上。

关键词: 植物根际促生菌, 棉花, 抗病, 产量

Abstract: A disease-resistant bacteria XX-3 was isolated from the rhizosphere soils of cotton dur-ing the period of 1996-1998. Through the field micro-zone experiments. XX-3 showed obvious effect of promoting besides strong ability of disease-resistant. When inoculated 5 ?108 cfu per plant, the yield of increasing reached 9.5 ~ 26.5% . The effect of disease-resistant in the increasing yield was over 50% .

Key words: FGPR, Cotton, Disease-resistant, Yield

中图分类号: 

• S476.1