Data/hora: 13/06/2024 21:37:19

Provedor de dados: | 94
País: | Brazil
Título: | The effects of inter-crop cultivation Between rows of citrus crop on spreading of Guignardia citricarpa Ascospores and in the citrus black spot occurrence
Autores: | Bellotte,José Antonio Miranda; Kupper,Katia Cristina; Rinaldo,Davi; Souza,Andressa de; Goes,Antonio de.
Data: | 2013-03-01
Ano: | 2013
Palavras-chave: | Citrus sinensis; Cultural control; Phyllosticta citricarpa; Arachys pintoi; Cynodon dactylon.
Resumo: | This study highlighted the effect of planting coast-cross grass and forage peanut cv. Amarilis between rows of Natal oranges on spreading of Guignardia citricarpa ascospores and consequent citrus black spot control. Treatments evaluated were: 1- conventional cultivation, free of fungicides; 2- conventional cultivation, using protective fungicides; 3- inter-crop cultivation of coast-cross grass between rows of citrus crops and; 4- inter-cropping cultivation of forage peanut between the rows of citrus crops. Quest Volumetric Spore SystemTM traps were set in order to determine the number of ascospores released. A total of 33 inspections were conducted weekly, from the end of August until early September the following year. A diagrammatic scale was used to determine the severity of the disease as well as the percentage of fruits having a commercial standard. The coast-cross grass was more effective in reducing the number of ascospores produced, whose average statistics were lower than in the conventional treatments, free-fungicides. The inter-crop and conventional cultivation method coupled with fungicide treatment was more effective in reducing the severity of citrus black spot symptoms, and differs statistically from the fungicide-free control method. These methods also resulted in a higher percentage of fruits of a commercial standard, ranging from the 89% through the 91% percentile, and the cultivation, free of fungicides, fell within the 73%.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452013000100013
Editor: | Sociedade Brasileira de Fruticultura
Relação: | 10.1590/S0100-29452013000100013
Formato: | text/html
Fonte: | Revista Brasileira de Fruticultura  v.35 n.1 2013
Fonte: | info:eu-repo/semantics/openAccess