Banca de DEFESA: HELIO JOÃO DE FARIAS NETO

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
DISCENTE : HELIO JOÃO DE FARIAS NETO
DATA : 31/08/2018
HORA: 09:00
LOCAL: Instituto de Agronomia, Departamento de Fitotecnia
TÍTULO:

Evaluation of dosages of cow's milk and sulphocalcic juice for control of powdery mildew in pea culture

PALAVRAS-CHAVES:

Erysiphe pisi; alternative control; productivity

PÁGINAS: 34
GRANDE ÁREA: Ciências Agrárias
ÁREA: Agronomia
SUBÁREA: Fitossanidade
ESPECIALIDADE: Fitopatologia
RESUMO:

One of the most important diseases of the pea crop (Pisum sativum L.) is the powdery mildew caused by Erysiphe pisi. Although there are several fungicides registered and used to control the disease, its regular can lead to selection of resistant strains in the pathogen population and increase the risks of food and applicator intoxication. This disease is also important in the organic production of pea, which by legislation can not use fungicides with the same few alternatives to control the disease. Considering the importance of the pea crop for southern Minas Gerais producers and the losses caused by powdery mildew, the present work was carried out with the objective of testing alternative methods compatible with organic legislation for the control of the disease in culture. Two experiments were carried out in the Municipality of Extrema-MG, Southern Minas Gerais, being the first experiment carried out in the Pessegueiro Community and the second in the Furnas Community. The initial experiment was carried out in the field from March 10, 2017 to May 23, 2017, and the second in greenhouse in the period from 03/14/2018 to 06/18/2018. The pea variety of purple flower and weekly applications of raw milk (10 and 20%) and sulphocalcica (0.5%), plus a control treatment (water) were used. The severity of the disease and the productivity of the culture were evaluated. The treatments with cow's milk, at 10 and 20%, were the most efficient in the control of the powdery mildew followed by each sulphocalcium, which caused phytotoxicity symptoms in the plants. Compared to the control, treatments with 20% and 10% milk and sulphocalcium hydroxide resulted in gains of 32.84 and 31.91% of productivity compared to the control

MEMBROS DA BANCA:
Presidente - 1213072 - MARGARIDA GORETE FERREIRA DO CARMO
Externo à Instituição - MARIA DO CARMO DE ARAÚJO FERNANDES - OUTRO
Externo à Instituição - MARIA LUIZA DE ARAÚJO - OUTRO