Banca de DEFESA: NATALIA LIMA DE ESPINDOLA

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : NATALIA LIMA DE ESPINDOLA
DATE: 25/02/2025
TIME: 14:00
LOCAL: Auditório do Hospital Veterinário
TITLE:

Inoculação de Bactérias Promotoras de Crescimento Vegetal e Peletização com Biochar: Efeito nas Características Morfológicas e Produtivas do Milho cultivar AG 1051

KEY WORDS:

Biochar; Microorganism-plant interaction; Sustainability; Zea mays.

PAGES: 50
BIG AREA: Ciências Agrárias
AREA: Agronomia
SUBÁREA: Ciência do Solo
SPECIALTY: Microbiologia e Bioquímica do Solo
SUMMARY:

The search for sustainable and efficient agricultural practices has driven the use of biotechnologies in crop management, with emphasis on seed inoculation with plant growth-promoting bacteria (PGPB’s) and the use of biochar. Aiming at increasing plant development and production potential, the adoption of such techniques becomes essential, reducing the frequent need for chemical inputs and ensuring the balanced maintenance of the soil-plant system. In this sense, the objective was to evaluate the effects on the morphological characteristics of corn plants cultivar AG 1051 after seed inoculation with two strains of plant growth-promoting bacteria, Burkholderia heleia and Rhizobium cauense, and pelletization with two different types of biochar, rice straw and grape pruning. Two evaluations were conducted, in a greenhouse and in the field. For both, the inoculum was performed by multiplying the strains in Nutrient Broth culture medium, until reaching 10⁶ colony-forming unit per mL. For inoculation, the seeds were immersed in the inoculum for 30 minutes, under gentle agitation every 5 minutes and subsequently removed and placed in a 5 mm sieve for 1 minute. Still moist with the bacterial inoculum as an adhesive agent, the seeds were placed in contact with the biochar, in a 10:1 ratio, 100 g of seeds to 10 g of biochar. In contact with the biochar and under gentle agitation for 10 minutes, the seeds were completely covered. At the end of the process, the excess biochar was removed with the aid of a 0.5 mm sieve for 1 min. At the end of the evaluation period, at 90 and 120 days in the greenhouse and field respectively, better development of corn plants was observed by inoculation with the R. cauense strain and subsequent pelletization with grape pruning biochar, with greater increases in morphological and productive characteristics. Finally, it is concluded that the use of inoculation and pelleting techniques in combination, in addition to improving the development of corn plants, is an effective and sustainable alternative to the use of synthetic products, contributing to a more environmentally balanced agricultural ecosystem.

COMMITTEE MEMBERS:
Presidente - JOAO TIAGO CORREIA OLIVEIRA
Externa à Instituição - ISANELI BATISTA DOS SANTOS
Externa à Instituição - MARIA CAMILA DE BARROS SILVA