Please use this identifier to cite or link to this item: http://repositorio.ufla.br/jspui/handle/1/28639
Title: Efeito do óleo de nim no controle alternativo da cercosporiose em mudas de cafeeiro
Other Titles: Effect of neem oil in the alternative control of Cercospora leaf spot in coffee seedlings
Keywords: Coffea arabica
Azadirachta indica
Cercospora coffeicola
Doença fúngica
Fungic desease
Issue Date: Jun-2012
Citation: COGO, F. D. et al. Efeito do óleo de nim no controle alternativo da cercosporiose em mudas de cafeeiro. Tecnologia & Ciencia Agropecuaria, João Pessoa, v. 6, n. 2, p. 23-28, jun. 2012.
Abstract: The object of the present study was to examine the efficacy of neem oil on the fungus Cercospora coffeicola in coffee seedlings. Four doses were tested using a randomized block design: 0 (control), 50, 100 and 150 mL/L of neem oil, with six replications. The efficacy of the product was evaluated by measuring Cercospora leaf spot intensity and characteristics of plant height, stem diameter, dry mass of shoot and root dry mass. Data was subjected to variance analysis with polynomial regression. The dose of 100 mL/L neem oil resulted in a lower incidence of Cercospora leaf spot, giving greater protection to the development of seedlings and plants for up to 45 days of growth. From this point on there was an increase in disease incidence, in a similar manner, for all treatments. It is suggested that the number of applications is increased, and the range of applications of neem oil is reduced, so that the product may be used as an alternative control of fungus in coffee seedlings. Maximum values ​of plant height (23.43) stem diameter (2.72 mm), shoot dry weight (1.73 g) and root biomass (0.62 g) were obtained using doses of 80 to 92 mL/Lof neem oil.
URI: http://revistatca.pb.gov.br/edicoes/volume-06-2012/volume-6-numero-2-junho-2012/tca6205.pdf
http://repositorio.ufla.br/jspui/handle/1/28639
Appears in Collections:DCS - Artigos publicados em periódicos

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