Banca de DEFESA: MAYAN BLANC AMARAL

Uma banca de DEFESA de DOUTORADO foi cadastrada pelo programa.
STUDENT : MAYAN BLANC AMARAL
DATE: 06/10/2023
TIME: 13:30
LOCAL: Videoconferencia
TITLE:

Thesis Defense titled "Biological Nitrogen Fixation in Tropical Forage Legumes" by Mayan Blanc Amaral.

KEY WORDS:

Biological nitrogen fixation; forage groudnut; desmodio; macrotyloma

PAGES: 106
BIG AREA: Ciências Agrárias
AREA: Agronomia
SUBÁREA: Ciência do Solo
SPECIALTY: Microbiologia e Bioquímica do Solo
SUMMARY:

Brazil stands out in the global livestock industry for beef and dairy production, primarily through extensive farming systems. Forage legumes, when intercropped with grasses, can enhance nitrogen input and pasture productivity without the need for synthetic nitrogen fertilization. Some legume species have already been selected for this purpose; however, there is still limited adoption of this technology among livestock farmers. Furthermore, it remains uncertain to what extent legumes in pastures rely on biological nitrogen fixation (BNF), and the measurement of this process in different locations with varying levels of technology serves as a reference for improving inoculation technology. Therefore, the aim of this thesis was to assess the contribution of symbiotic bacteria and associative microorganisms to the growth promotion of forage legumes (Arachis pintoi, Macrotyloma axillare, and Desmodium heterocarpon) and the enhancement of biological nitrogen fixation, with the goal of improving inoculant recommendations for pastures. The results demonstrated that, despite forage legumes being considered promiscuous, they exhibit varying degrees of symbiotic association with Bradyrhizobium genus bacteria. M. axillare stands out as responsive to rhizobial inoculation, and the increases achieved through co-inoculation with plant growth-promoting microorganisms (PGPM) are primarily associated with root biomass increment.

COMMITTEE MEMBERS:
Presidente - ***.282.827-** - BRUNO JOSÉ RODRIGUES ALVES - EMBRAPA
Interna - 1815763 - IRENE DA SILVA COELHO
Externo ao Programa - ***.881.579-** - JERRI ÉDSON ZILLI - EMBRAPA
Externo à Instituição - ENDERSON PETRONIO DE BRITO FERREIRA - EMBRAPA
Externo à Instituição - LUC FELICIANUS MARIE ROUWS - EMBRAPA