| Full text | |
| Author(s): |
Miranda Bellotte, Jose Antonio
[1]
;
Kupper, Katia Cristina
[2]
;
Rinaldo, Davi
[3]
;
de Souza, Andressa
[3]
;
de Goes, Antonio
[3]
Total Authors: 5
|
| Affiliation: | [1] Louis Dreyfus Commod Agroind Ltda, Sao Paulo - Brazil
[2] Ctr APTA Citros Sylvio Moreira, Inst Agron, BR-13490970 Cordeiropolis, SP - Brazil
[3] Univ Estadual Paulista, FCAV UNESP, BR-14884900 Jaboticabal, SP - Brazil
Total Affiliations: 3
|
| Document type: | Journal article |
| Source: | Revista Brasileira de Fruticultura; v. 35, n. 1, p. 102-111, MAR 2013. |
| Web of Science Citations: | 1 |
| Abstract | |
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%. (AU) | |
| FAPESP's process: | 01/10993-0 - Etiological, biochemical and molecular aspects of Guignardia citricarpa, agent responsible for leaf spot in citrics |
| Grantee: | Antonio de Goes |
| Support Opportunities: | Research Projects - Thematic Grants |