Response of micropropagated sugarcane varieties to inoculation with endophytic diazotrophic bacteria

Brazilian Journal of Microbiology

André Luiz Martinez De Oliveira²  Erineudo De Lima Canuto²  Verônica Massena Reis¹  José Ivo Baldani¹ 

[1] ,Universidade Federal do Rio de Janeiro Instituto de Agronomia Ciência do Solo

关键词: endophytic bacteria inoculation;    biological nitrogen fixation;    plant growth promotion bacteria;    sugarcane;    inoculação com bactérias endofíticas;    fixação biológica de nitrogênio;    bactérias promotoras do crescimento vegetal;    cana-de-açúcar;   

DOI  :  10.1590/S1517-83822003000500020

来源: SciELO

【 摘 要 】

Previous studies estimated that sugarcane could obtain up to 60% of total nitrogen accumulated from BNF. Here a mixture of five endophytic diazotrophic strains was tested in a field trial, inoculated in two micropropagated sugarcane varieties and three locals, to determine the effects on commercial crop conditions. The sugarcane plantlets were inoculated in vitro, and after 17 months of growing in the field, the productivity and BNF contribution showed to be influenced by the plant genotype and soil type. The highest BNF contributions was observed in the poorest soil for both varieties. Smaller increases in productivity were observed for SP 701143 variety grown in soil with low or medium fertility. In contrast, a decrease in the stem productivity was observed in the SP 813250 variety grown in the three localities.

【 授权许可】

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