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Doctoral Thesis
DOI
https://doi.org/10.11606/T.11.2019.tde-20191220-130952
Document
Author
Full name
Paulo Sérgio Rodrigues de Araújo
Institute/School/College
Knowledge Area
Date of Defense
Published
Piracicaba, 2000
Supervisor
Title in Portuguese
Seleção de caramboleiras (Averrhoa carambola L.) relacionada às características biométricas e físico-químicas dos frutos
Keywords in Portuguese
BIOMETRIA
CARAMBOLA
PROPRIEDADES FÍSICO-QUÍMICAS
SELEÇÃO
Abstract in Portuguese
Neste trabalho caracterizou-se caramboleiras, relacionando-se as características biométricas e físico-químicas dos frutos, com potencialidade de utilização para consumo fresco e processamento agroindustrial. O experimento foi avaliado na Universidade de São Paulo, na Escola Superior de Agricultura “Luiz de Queiroz”, no Departamento de Produção Vegetal e no Centro de Energia Nuclear de Agricultura-Laboratório de Entomologia, no município de Piracicaba, SP. Os frutos foram coletados de 15 caramboleiras (Averrhoa carambolaL.) de pomar comercial, no município de Mirandópolis-SP. Realizou-se seis coletas de 50 frutos por planta, no período entre os 1º semestres de 1997 e 1999, para avaliações biométricas de comprimento, diâmetro, massa, número de gomos e sementes. À avaliação dos parâmetros físico-químicos, procedeu-se amostragens aleatórias, constando três frutos nas referidas coletas, sendo analisadas a acidez total titulável, sólidos solúveis totais, firmeza de polpa, pH e coloração externa. Observou-se que a planta C1 e C3 foram superiores as demais em relação ao comprimento e massa dos frutos apresentando elevados teores de sólidos solúveis totais, “ratio” e baixa acidez total titulável, características estas, interessantes para o consumo fresco, sendo limitante o grande número de sementes da planta C1 em relação a C3. Como opção para porta enxerto, devido ao elevado número de sementes nos frutos, destacam-se três plantas: C1C, C1 e C1A. Para processamento, decorrente da elevada acidez total titulável, baixo número de sementes e tamanho entre médio e grande, destacou-se a planta C2C.
Title in English
Biometrical and physicochemical characteristics of the star fruit (Averrhoa carambola L.) selections
Abstract in English
This research aimed to evaluate biometrical and physicochemical characteristics of star fruit selections. The experiment was carried out at Escola Superior de Agricultura "Luiz de Queiroz", Departamento de Produção Vegetal and Centro de Energia Nuclear na Agricultura, Laboratório de Entomologia, of the Universidade de São Paulo from Piracicaba, São Paulo state, Brazil. The fruits were collected from of 15 star fruit trees (Averrhoa carambola L.) of a commercial orchard, in Mirandópolis, São Paulo state, Brazil. Six harvests collections of 50 fruits for plant each, were made in the period between among the first semester of 1997 and first semester of 1999 for biometric evaluations: length, diameter mass, corners and seeds numbers. The evaluation of the physical-chemical parameters was accomplished by aleatory sampling consisting three fruits per plant, being analyzed the total titatrable acidity , total soluble solids , firmness, pH and skin color. It was observed that the two plants produced the largest fruit, with high total soluble solids content, low number of seeds, only differing with relationship to the number of seeds. Those plants are interesting for graftaging as new scion clones due to the quality of the fruits for fresh consumption. As an option for rootstock, three plants were selected, due to the great number of seeds and high total titatrable acidity. Another plant was selected for the industry, due to good fruit size, high total titatrable acidity and low number low number of seeds.
 
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Publishing Date
2019-12-20
 
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