Banca de DEFESA: JULIETE DE SOUSA OLIVEIRA

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : JULIETE DE SOUSA OLIVEIRA
DATE: 22/02/2024
TIME: 08:30
LOCAL: Por videoconferência
TITLE:

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KEY WORDS:

gas exchanges; entomopathogenic fungi; growth promotion; bioinputs.

PAGES: 57
BIG AREA: Ciências Agrárias
AREA: Agronomia
SUBÁREA: Fitossanidade
SPECIALTY: Entomologia Agrícola
SUMMARY:

In the Amazon region, corn (Zea Mays L., Poacea) is considered a cereal of great importance for both human and animal consumption. It is particularly a crop with high demands for macronutrients such as Nitrogen, Phosphorus, and Potassium, essential for plant development. However, given the current high costs of chemical fertilizers in the global market, there is a need for more sustainable and cost-effective alternatives to maintain productivity. In this context, it is believed that reducing the amount of fertilization associated with biofertilization associated with biofertilizers, such as entomopathogenic fungi native to the Amazon, can positively influence the promotion of growth, like the standard 100% of the recommended fertilization for the crop. Thus, the objective was to evaluate the use of entomopathogenic fungi associated with 50% the recommended fertilization to enhance the biometric, physical, biochemical, and anatomical parameters of corn plants. The experiment was conducted in a greenhouse, using a completely randomized experimental design with six treatments and six repetitions. The treatments were: T1- No fertilization and fingi (control), T2- 50% of the recommended fertilization for the crop. T3- Beauberia bassiana+ 50% of the recommended fertilization, T4- Metarhizium anisopliae +50 fertilization, T5- Mix oh Trichoderma asperellum (isolates UFRAT-06, UFRAT-09, UFRAT-12 and UFRAT-52) + 50% fertilization and T6-100% fertilization (recommended standard treatment). All treatments with microrganisms promoted greater growth go corn plants, with 15 being the most efficient for all analyzed variables. Plants inoculated wint T4- M. anisopliae and fertilization, showed higher values in the parameters of net photosynthesis (A), stomatal, conductance (gs) transpiration (E), and carboxylation efficiency (A/Ci), compared to T1(control Treatment). For the intercellular CO2 variable (Ci), the standout treatments were T4 and T5. In the anatomical analyses of the fungi, the best treatments were T4 and T5. Biochemically, all evaluated microrganisms showed satisfaction results for phosphate solubilization, siderophore production, and indole acetic acid (AIA) production. In conclusion, the microrganisms M.anisopliae and T. asperellum associated only 50% of the recommended fertilization for the crop are efficient and the biometric, physiological, biochemical, and anatomical parameters Creole corn plants.

BANKING MEMBERS:
Externo à Instituição - DENISE CASTRO LUSTOSA - UFOPA
Externo à Instituição - RODOLFO INACIO NUNES SANTOS - SEMAS
Externo à Instituição - RUY GUILHERME CORREIA - SEDUC/PA
Presidente - 3266519 - TELMA FATIMA VIEIRA BATISTA