Diazotrophic bacteria and substrates in the growth and nitrogen accumulation of sugarcane seedlings



Título del documento: Diazotrophic bacteria and substrates in the growth and nitrogen accumulation of sugarcane seedlings
Revista: Scientia Agricola
Base de datos: PERIÓDICA
Número de sistema: 000455608
ISSN: 0103-9016
Autors: 1
2
3
1
1
4
Institucions: 1Universidade Federal de Pelotas, Capao do Leao, Rio Grande do Sul. Brasil
2Empresa Brasileira de Pesquisa Agropecuaria, Agrobiologia, Seropedica, Rio de Janeiro. Brasil
3Universidade Federal de Santa Maria, Santa Maria, Rio Grande do Sul. Brasil
4Empresa Brasileira de Pesquisa Agropecuaria, Clima Temperado, Pelotas, Rio Grande do Sul. Brasil
Any:
Volum: 78
Número: 1
País: Brasil
Idioma: Inglés
Tipo de documento: Artículo
Enfoque: Experimental, aplicado
Resumen en inglés Little 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
Disciplines Agrociencias,
Biología
Paraules clau: Gramíneas,
Bacterias,
Caña de azúcar,
Saccharum,
Composta,
Fijación del nitrógeno,
Bacterias diazotróficas,
Plántulas
Keyword: Gramineae,
Bacteria,
Sugar cane,
Saccharum,
Compost,
Nitrogen fixation,
Diazotrophic bacteria
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