Nutrients Uptake in Shoots and Biomass Yields and Roots and Nutritive Value of Zuri Guinea Grass Inoculated with Plant Growth-promoting Bacteria

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Data

2019-12-16

Autores

C. R. Sá, Geovana [UNESP]
Hungria, Mariangela
Carvalho, Caroline Lopes Monteiro [UNESP]
Moreira, Adônis
Nogueira, Marco
Heinrichs, Reges [UNESP]
Soares Filho, Cecílio Viega [UNESP]

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Resumo

The objective of this study was to evaluate the effects of plant growth promoting bacteria (PGPB) inoculation in Zuri guinea grass [Megathyrsus (syn. Panicum) maximus] on shoot dry weight (SDW) and root dry weight (RDW) yield, morphological compositions, number of tillers, and nutrients concentrations in SDW. The experiment was carried out under greenhouse conditions in a randomized block design consisting of eight treatments with five replicates. The inoculation with the Ab-V5 and Ab-V6 strains of Azospirillum brasilense and Pseudomonas fluorescens or co-inoculation with Rhizobium tropici and Ab-V6, with nitrogen (N) fertilization, as well as re-inoculations of the plants after cuttings were taken were evaluated. The plant growth-promoting bacteria and N fertilization promoted increases in SDW and RDW yield, tillers dry weight, relative chlorophyll index (RCI) and nutrients uptake in shoots of Zuri guinea grass. There were effects of re-inoculation the PGPB by P. fluorescens in shoots, N, magnesium (Mg) and boron (B) concentration in SDW.

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Azospirillum brasilense, diazotrophic bacteria, megathyrsus maximus, nitrogen biological fixation, pseudomonas fluorescens, rhizobium tropici, tropical grass

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Communications in Soil Science and Plant Analysis, v. 50, n. 22, p. 2927-2940, 2019.