| Grant number: | 16/11920-1 |
| Support Opportunities: | Regular Research Grants |
| Start date: | September 01, 2016 |
| End date: | August 31, 2018 |
| Field of knowledge: | Agronomical Sciences - Agronomy - Plant Health |
| Principal Investigator: | Marcel Bellato Spósito |
| Grantee: | Marcel Bellato Spósito |
| Host Institution: | Escola Superior de Agricultura Luiz de Queiroz (ESALQ). Universidade de São Paulo (USP). Piracicaba , SP, Brazil |
| Associated researchers: | Angelo Pedro Jacomino ; Beatriz Appezzato da Glória ; Nelson Sidnei Massola Júnior |
Abstract
Brazil is the world's fourth largest producer of persimmon, and São Paulo, the largest Brazilian producer state. The persimmon culture has proven to be a viable alternative to fruit growers aimed at mid-term peak demand for hand labor on the orchard, since the persimmon harvest is done in a different time of most other fruit species grown in the State. Brazilian production is primarily focused on domestic consumption in natura, still small percentage of production exported as fresh fruit. In São Paulo State, the main varieties of persimmons are Fuyu, Giombo, Rama-Forte and Taubaté. These cultivars are well adapted to the climate of the State and well accepted for domestic consumption. The persimmon is a rustic plant that has few problems with diseases. Among the diseases that occur in persimmon, Cercospora leaf spot, caused by the fungus Cercospora kaki, is considered the most important. The Cercospora leaf spot is a disease characterized by the appearance of lesions irregular, leading to premature defoliation of plants. As the persimmon one deciduous plant, premature leaf fall can cause a minor accumulation of carbohydrate reserves in the root system and thereby cause a reduction in the production of the next crop. There is little information on the Cercospora leaf spot, so the objective of the project is to carry out studies on the etiology of the pathogen and the epidemiology of the disease. The results provide information on the environmental conditions favorable for infection of the pathogen, the relationship between disease severity and accumulation of carbohydrates in the root system, as well as incubation period and susceptibility of different cultivars of persimmon to Cercospora leaf spot. (AU)
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