Banca de DEFESA: RAYSSA SIMÃO MACHADO

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : RAYSSA SIMÃO MACHADO
DATE: 26/08/2022
TIME: 10:00
LOCAL: Sala virtual através do link https://meet.google.com/mjj-dono-jar
TITLE:

SELECTION OF EFFICIENT Azospirillum STRAINS AIMING CO-INOCULATION WITH Bradyrhizobium IN SOYBEAN CROPS

KEY WORDS:

Inoculant, Nitrogen, Diazotrophic bacteria.

PAGES: 24
BIG AREA: Ciências Agrárias
AREA: Agronomia
SUBÁREA: Fitossanidade
SPECIALTY: Microbiologia Agrícola
SUMMARY:

Soybean farming in Brazil has been occupying a prominent position in world agribusiness, being one of the most productive grains. Due to good performance and high productivity, the demand for inoculants that contribute to nodulation and increase productivity is growing. Biological Nitrogen Fixation (BNF), performed by diazotrophic bacteria, such as the genus Azospirillum, is seen as one of the strategies for reducing the use of nitrogen fertilizers in agriculture and increasing production. Given the facts, the objective of this work is to select efficient strains of Azospirillum, compatible with Bradyrhizobium, in order to evaluate the co-inoculation in the soybean crop. The following treatments were used: 15 Azospirillum strains taken from the collection of forage diazotrophic bacteria (BDF) and from the collection of soil microorganisms (CMS) with Bradyrhizobium co-inoculation; 1 control treatment without inoculation; 1 treatment with inoculation of Bradyrhizobium only. The treatments received a dose of 12 kg ha-1 of N (Nitrogen) (A), 30 kg ha-1 of N (B), and then 1 treatment at a high dose of N 90 kg ha-1 (C) was added. without inoculation. All treatments were set up with 3 replications, forming a factorial scheme in a randomized block design (DBC) with 105 experimental units: 2x17x3+3. To evaluate the root system, shoots and the effects of biological nitrogen fixation, the following parameters will be analyzed: number of nodules, dry weight of nodules, root dry weight, shoot dry weight, shoot N content and of root N. The results will be submitted to analysis of variance and when significant, the scott knott will be performed at 5% probability using the SISVAR statistical program.

 

 

 

BANKING MEMBERS:
Externa ao Programa - 3146380 - CRISTIANE ALCANTARA DOS SANTOS
Presidente - 371.206.387-34 - IVANILDO EVODIO MARRIEL - EMBRAPA
Externo à Instituição - UBIRACI GOMES DE PAULA LANA