Banca de DEFESA: JOÃO VITOR DA SILVA ALVES

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
DISCENTE : JOÃO VITOR DA SILVA ALVES
DATA : 28/02/2020
HORA: 14:00
LOCAL: Tangará da Serra
TÍTULO:

Resistance induction in the control of Colletotrichum sp. in Heliconia psittacorum x spathocircinata cv. Golden Torch

PALAVRAS-CHAVES:

anthracnose, peroxidase, β-1,3-glucanase.

PÁGINAS: 70
GRANDE ÁREA: Ciências Agrárias
ÁREA: Agronomia
SUBÁREA: Fitossanidade
ESPECIALIDADE: Fitopatologia
RESUMO:

Tropical floriculture is an activity that is on the rise in Brazil, the sector of production and marketing of ornamentals has shown continuous growth in recent years. The unique Heliconia genus belonging to the Heliconiaceae family, stands out in this branch for containing bracts in different shapes and colors. The state of Mato Grosso has a favorable climate for cultivation in full sun or half shade and also provides numerous diseases, including anthracnose, caused by species of the genus Colletotrichum which interfere in the production, development and quality of this culture. In this sense, the purpose of this study is to induce resistance in the control of Colletotrichum sp. in Heliconia psittacorum x spathocircinata cv. Golden Torch of the Active Germplasm Bank of Tropical Flowers at the State University of Mato Grosso Carlos Alberto Reyes Maldonado. Heliconia psittacorum x spathocircinata cv. Golden Torch, grown in full sun and half shade. Two resistance inducers used together, a biotic inductor Bacillus subtilis and an abiotic, the product Acibenzolar-s-methyl (ASM), were used. In the evaluation, severity of the disease was observed, as well as the analysis of peroxidase and β-1,3-glucanase. The inducers reduced the severity of the disease in both cultivation conditions, with shading plants having the greatest reduction in severity. There was an increase in the production of peroxidase and β-1,3-glucanase. In the leaves and inflorescences of Heliconia psittacorum cv. Golden Torch of shading showed greater peroxidase activation when compared to plants in full sun. The activity of β-1,3-glucanase was verified in all plants regardless of the cultivation condition, with emphasis on the leaves grown in half shade where they showed activation during all the days of analysis.

MEMBROS DA BANCA:
Presidente - 138379001 - DEJANIA VIEIRA DE ARAUJO
Interno - 131995001 - CELICE ALEXANDRE SILVA
Externo à Instituição - ELISANDRA BATISTA ZAMBENEDETTI MAGNANI - UNIVAG