PPGAGRO PROGRAMA DE PÓS-GRADUAÇÃO EM AGRONOMIA ICA - INSTITUTO DE CIÊNCIAS AGRÁRIAS Phone: Not available

Banca de QUALIFICAÇÃO: JULIETE DE SOUSA OLIVEIRA

Uma banca de QUALIFICAÇÃO de MESTRADO foi cadastrada pelo programa.
STUDENT : JULIETE DE SOUSA OLIVEIRA
DATE: 30/06/2023
TIME: 14:00
LOCAL: Auditório PGagro
TITLE:

ENTOMOPATHOGENIC FUNGI ASSOCIATED WITH FERTILIZATION IN PROMOTING GROWTH IN THE CROP OF Zea mays L.


KEY WORDS:

Creole corn;Plant-fungus interaction;Gas exchange;Photosynthesis;Fertilizers.


PAGES: 46
BIG AREA: Ciências Agrárias
AREA: Agronomia
SUBÁREA: Fitossanidade
SPECIALTY: Entomologia Agrícola
SUMMARY:

 

 
 
Corn (Zea mays L.) is one of the most important crops in the world. Originally from Central America, corn has become one of the main foods and agricultural commodities, being cultivated on a large scale for various purposes, such as human food, animal feed, fuel production and raw material for industry. Brazil is the third largest corn producer in the world. The corn crop is very demanding in terms of nutrients, such as Nitrogen, Phosphorus and Potassium. Thus, the use of fertilizers in agriculture gradually becomes a challenge for producers, as these are one of the main agricultural expenses. However, there are studies that show that the use of microorganisms is effective in promoting plant growth, bringing more sustainable and profitable possibilities. Therefore, the objective was to evaluate the growth promotion, biomass accumulation and gas exchange with the use of entomopathogenic fungi associated with fertilization in Z. Mays. The experiment was carried out in a greenhouse, in a completely randomized design with six treatments composed of: T1- (without fertilization and without microorganisms- control), T2- 50% of the recommended fertilization for the culture, T3- Beauveria bassaiana + 50% of fertilization , T4- Metarhizium anisopliae + 50% fertilization, and T5-MIX from Trichoderma asperellum (UFRAT-06, UFRAT-09, UFRAT-12 and UFRAT-56) + 50% fertilization. For the biometric variables, the inoculation of microorganisms promoted the growth of corn plants. The treatment with the Mix of T. Asperellum + 50% fertilization was the most efficient for all the analyzed variables, resembling it in most variables was the treatment with 100% fertilization. Plants inoculated with M. Anisopliae + 50% fertilization and with the Mix of T. Asperellum + 50% fertilization showed higher values in the parameters of net photosynthesis (A), stomatal conductance (gs), transpiration (E) and water efficiency. carboxylation (A/Ci) in relation to the control. However, for the intercellular CO2 variable (Ci), the highlighted treatments were with 100% of the recommended fertilization, control and Beauveria bassaiana + 50% of fertilization. It is concluded that microorganisms can be efficiently introduced into agriculture in order to promote both biometric and physiological growth of maize plants.

BANKING MEMBERS:
Presidente - 3266519 - TELMA FATIMA VIEIRA BATISTA
Externo à Instituição - BENEDITO GOMES DOS SANTOS FILHO - UFRA
Externo à Instituição - RICARDO AUGUSTO MARTINS CORDEIRO - IFPA
Externo à Instituição - RUY GUILHERME CORREIA - SEDUC/PA
Notícia cadastrada em: 19/06/2023 17:33
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