02082naa a2200265 a 450000100080000000500110000800800410001902200140006002400530007410000180012724501280014526000090027350000220028252012620030465300330156665300250159965300200162465300170164470000210166170000160168270000200169870000200171870000260173877300520176421219552021-05-07       2021    bl uuuu     u00u1 u    #d  a1678-992X7 ahttps://doi.org/10.1590/1678-992x-2019-00352DOI1 aMATOSO. E. S.  aDiazotrophic bacteria and substrates in the growth and nitrogen accumulation of sugarcane seedlings.h[electronic resource]  c2021  aEpub Mar 13, 2020  aLittle is known about the interaction between the inoculation of diazotrophic bacteria, the variety, and the substrate used in inoculated sugarcane seedling production. Bearing this in mind, the aim of this study was to evaluate the effects of diazotrophic bacteria inoculation, four sugarcane varieties and four different substrates on the growth and nitrogen accumulation of sugarcane seedlings. Parameters related to sprouting, height, and root growth, as well as nitrogen accumulation, were evaluated. The results indicate that inoculating sugarcane seedlings belonging to the following varieties: RB867515, RB92579, RB966928 and RB975932 with bacteria may increase sprouting speed index, height, root length, fresh and dry matter weight, as well as nitrogen accumulation, which has resulted in a more uniform stem diameter. However, the responses to inoculation differ from variety to variety and are also dependent on the substrate used with better results observed in the commercial substrate and the substrate mixtures containing a higher proportion of organic compost. Understanding the interaction between the variety and the substrate with the bacterial inoculation is essential to the success of the production of inoculated sugarcane seedlings.  aBiological nitrogen fixation  aCarbonized rice husk  aOrganic compost  aSaccharum sp1 aGIACOMINI, S. J.1 aREIS, V. M.1 aSILVA, M. T. da1 aAVANCINI, A. R.1 aSILVA, S. D. dos A. e  tScientia Agricola, v, 78gn.1, e20190035, 2021.