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Effect of defoliation for management of Sigatoka black in production and quality of banana

Grant number: 14/02975-1
Support type:Scholarships in Brazil - Scientific Initiation
Effective date (Start): August 01, 2014
Effective date (End): July 31, 2015
Field of knowledge:Biological Sciences - Botany - Pant Physiology
Principal researcher:Juliana Domingues Lima
Grantee:Jessica Andrade Florencio
Home Institution: Universidade Estadual Paulista (UNESP). Campus de Registro. Registro , SP, Brazil


Periodic defoliation is important for the management of Black Sigatoka to eliminate necrotic leaves and reduction of inoculum source, however, to some extent cultural practice without compromising fruit production. However, no study has been done in the Ribeira Valley, SP, not yet addressed its effect on the variation in size and weight of fruits in the bunch. Thus, the objective of this study is to determine the effect of defoliation on yield and quality of fruits of banana variety 'Prata' and 'Nanica'. To this end, in April and December 2014 defoliation on plants in bloom will be held, keeping 6, 7, 8, 9, 10, 11, 12 and 13 leaves on plants of the variety 'Grande Naine' and 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 and 16 leaves in plants of the variety 'Prata'. The experimental design is a completely randomized split plot in time, with six replicates for each experiment considering a variety. The evaluations will be made at harvest and postharvest fruit. At harvest, will be determined the number of functional leaves, pseudostem diameter, plant height, the weight of the bunch, the stalk, number of hands and determined hand of 1, 4 and last hand, the weight, fruit number, diameter and the fruit length. A hand 4 will be stored at 25 graus celsius until complete fruit maturation, at which time will be determined the weight loss, peel color, firmness, soluble solids, pH and titratable acidity. (AU)

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Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
JULIANA DOMINGUES LIMA; JESSICA ANDRADE FLORENCIO; WILSON DA SILVA MORAES; SILVIA HELENA MODENESE GORLA DA SILVA; DANILO EDUARDO ROZANE; EDUARDO NARDINI GOMES. Simulação da desfolha causada pela Sigatoka Negra na produção e a qualidade de frutos da bananeira 'Nanica'. Ciência Rural, v. 47, n. 1, . (14/02975-1)
LIMA, JULIANA DOMINGUES; FLORENCIO, JESSICA ANDRADE; MORAES, WILSON DA SILVA; MODENESE GORLA DA SILVA, SILVIA HELENA; ROZANE, DANILO EDUARDO; GOMES, EDUARDO NARDINI. Simulation of defoliation caused by Black Sigatoka in the yield and quality of banana `Nanica' fruits. Ciência Rural, v. 47, n. 1, . (14/02975-1)

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