Sowing depth in the emergence of soybean co-inoculated with Azospirillum brasilense and Bradyrhizobium japonicum

Authors

  • Miele Bau Cortelini Universidade Federal do Tocantins
  • Joênes Mucci Pelúzio UNIVERSIDADE FEDERAL DO TOCANTINS
  • Flávio Sérgio Afférri
  • Clovis Maurilio De Souza

DOI:

https://doi.org/10.20873/uftv9-12835

Abstract

The use of rhizobacteria can help to mitigate the stresses caused by soybean sowing depth. Thus, the aim of the study was to evaluate the effect of coinoculation, an association between the bacteria Bradyrhizobium japonicum and Azospirillum brasilense, on the emergence of soybean cultivars sown at different depths. For this, two experiments were set up at different times (13/12/2019 and 13/01/2020), in a completely randomized experimental design, factorial scheme 2 x 2 x 5, with two cultivars (“Bônus Ipro” and “NS 8383 RR”), two inoculation managements in seed (presence and absence of Azospirillum brasilense) and five sowing depths (2, 4, 6, 8 and 10 cm), with four repetitions. Emergency results and emergency speed index were evaluated. The means of the times, cultivars and inoculation managements were submitted to the F test and, when relevant, were compared by the Tukey test, being carried out regression analysis for the depth data. A co-inoculation was not efficient compared to inoculation only with B. japonicum, in improving the germination of cultivars, regardless of sowing depths. The increase in depth negatively influenced the emergence characters, regardless of the inoculation management and sowing date.

Published

2022-05-02

How to Cite

Bau Cortelini, M., Mucci Pelúzio, J. ., Sérgio Afférri, F., & De Souza, C. M. (2022). Sowing depth in the emergence of soybean co-inoculated with Azospirillum brasilense and Bradyrhizobium japonicum. DESAFIOS - Revista Interdisciplinar Da Universidade Federal Do Tocantins, 9(1), 142–155. https://doi.org/10.20873/uftv9-12835

Issue

Section

Artigos