Banca de DEFESA: JAQUELINE LIMA DA SILVA

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : JAQUELINE LIMA DA SILVA
DATE: 30/08/2024
TIME: 08:30
LOCAL: Auditorio do Pgagro
TITLE:

NATIVE FUNGI OF THE AMAZON AS GROWTH INDUCERS IN THE CULTURE OF Lactuca sativa L. IN PERIURBAN AGRICULTURE

KEY WORDS:

Lactuca sativa L.; Vegetables; Bioinput; economic viability; Trichoderma asperellum, Metarhizium anisopliae and Beauveria bassiana.

PAGES: 53
BIG AREA: Ciências Agrárias
AREA: Agronomia
SUBÁREA: Fitossanidade
SPECIALTY: Entomologia Agrícola
SUMMARY:

Lettuce (Lactuca sativa L.) is the most widely consumed leafy vegetable in Brazil. It is often grown in urban and peri-urban areas due to its proximity to major consumer centers. In addition to being a source of vitamins, minerals, and fiber, it is also used in the production of cosmetics and has medicinal applications. Given the growing consumer demand, producers are compelled to increase productivity in their planting areas. However, they face major challenges such as pests and diseases, and the need to accelerate the production cycle. Therefore, it is essential to use products that accelerate growth, increase resistance to pests and diseases, optimize plant nutrition, and favor more sustainable and profitable production. This study aimed to evaluate the growth of plants subjected to biostimulation with the Amazon native fungi Trichoderma asperellum, Metarhizium anisopliae, and Beauveria bassiana associated with reduced fertilization. It is assumed that the combination of fungi and the reduced use of fertilizer efficiently promote the growth of lettuce cv. Monica. The study was conducted in a commercial vegetable planting area in the municipality of Marituba/PA, using a completely randomized design, with 5 treatments: T1 - 100% organic fertilization - chicken manure (standard control); T2 - 50% of fertilization + T. asperellum; T3 - 50% of fertilization + M. anisopliae; - T4 - 50% of fertilization + B. bassiana; and T5 - 50% of fertilization + Mix (B. bassiana + M. anisopliae) and 5 replicates. The biometric growth parameters, physiological parameters, nutritional and economic parameters were evaluated. The data were submitted to analysis of variance (ANOVA) and Duncan's test to compare the means. All fungi promoted growth, biomass accumulation, higher chlorophyll index and gas exchange, improved photosynthetic performance, greater nutrient absorption and, according to economic analysis, are economically viable. The fungi T. asperellum and M. anisopliae stood out with the best results, in relation to the standard control. It is concluded that biostimulation with the evaluated fungi associated with 50% of the fertilization can be considered a highly viable strategy, because in addition to promoting plant growth, it reduces costs, generating a higher profit margin and production sustainability in lettuce crops in peri-urban agriculture in Marituba, metropolitan region of Belém.
KEYWORDS: Lactuca sativa L.; Vegetable; Bioinput; economic viability; Trichoderma asperellum, Metarhizium anisopliae and Beauveria bassiana.

COMMITTEE MEMBERS:
Presidente - 3266519 - TELMA FATIMA VIEIRA BATISTA
Interno - 1743866 - MARCOS ANTONIO SOUZA DOS SANTOS
Externo à Instituição - RODOLFO INACIO NUNES SANTOS - SEMAS
Externo à Instituição - SERGIO ANTONIO LOPES DE GUSMAO - UFRA