Open AccessAzospirillum brasilense INOCULATION ON SEED GERMINATION AND INITIAL GROWTH OF SEEDLINGS OF NATIVE FOREST SPECIES
Author(s) -
Francival Cardoso Félix,
Daniele Cristina Pereira de Matos,
Leandro Porto Latoh,
Renata de Almeida Maggioni,
Antônio Carlos Nogueira
Publication year - 2021
Publication title -
floresta
Language(s) - English
Resource type - Journals
eISSN - 1982-4688
pISSN - 0015-3826
DOI - 10.5380/rf.v51i4.73520
Subject(s) - germination , azospirillum brasilense , seedling , biology , inoculation , rhizobacteria , horticulture , agronomy , microbial inoculant , rhizosphere , bacteria , genetics
Inoculation of rhizobacteria in seeds and plants has been documented as a stimulant and promoter of germination and growth of agricultural crops, but there is little information on native forest species. Therefore, the present study aims to evaluate the potential of Azospirillum brasilense inoculation in the germination of seeds and initial growth of seedlings of native forest species. The following experiments were carried out: (I) germination of seeds in germination chamber, and (II) initial growth of seedlings in nursery, both with four forest species (Cassia leptophylla, Lafoensia pacari, Mimosa flocculosa and Schinus terebinthifolius). For the four species, in both experiments, two treatments were used: inoculation of seeds with concentrated solution of A. brasilense and no inoculation of seeds (control). Physiological aspects of seed germination and seedling vigor were evaluated in the first experiment (germination speed, and length and dry weight of seedlings), and seedling growth was evaluated in the second experiment (height, collar diameter and dry weight of seedlings). Inoculation of A. brasilense in seeds of C. leptophylla, L. pacari, M. flocculosa and S. terebinthifolius did not promote beneficial or promising results for seed germination and initial growth of seedlings, so its use to produce seedlings of these species is not recommended.