Physicochemical characteristics of experimental net melon hybrids developed in Brazil
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Data
2013-09-01
Autores
Vargas, Pablo F [UNESP]
Galatti, Francine De S [UNESP]
Souza, Jean De O [UNESP]
Castoldi, Renata [UNESP]
Charlo, Hamilton Cesar De O
Braz, Leila T [UNESP]
Título da Revista
ISSN da Revista
Título de Volume
Editor
Associação Brasileira de Horticultura
Resumo
Objetivou-se com este estudo avaliar as características físico-químicas de parentais e híbridos experimentais de melão rendilhado, desenvolvidos na Universidade Estadual Paulista (UNESP), em Jaboticabal. Foram utilizadas seis linhagens (Jab-3; Jab-7; Jab-11; Jab-18; Jab-9 e Jab-20) pertencentes ao programa de melhoramento genético do meloeiro rendilhado da UNESP em Jaboticabal e, todas as combinações híbridas possíveis entre essas, inclusive os recíprocos. Foi utilizado o delineamento em blocos casualizados com três repetições. Dos 38 tratamentos, fizeram parte seis linhagens, 15 híbridos, 15 híbridos recíprocos e duas cultivares comerciais (Bônus nº2 e Louis). Foram avaliadas massa do fruto, espessura da polpa, espessura da casca, rendilhamento da casca, desprendimento de semente, sólidos solúveis, acidez titulável, pH, índice de maturação, firmeza da polpa, e, Vitamina C. A massa mínima de 0,8 kg por fruto de melão rendilhado e, sólidos solúveis de no mínimo 10°Brix subsidiaram a identificação dos genótipos Jab-9 x Jab-3, Jab-18 x Jab-20, Jab-18 x Jab-11, Jab-7 x Jab-20, Jab-7 x Jab-11, Jab-20 x Jab-7, e Jab-3 x Jab-20 como promissores, devendo os mesmos serem avaliados nas principais regiões produtoras de melão rendilhado e em diferentes épocas de cultivo.
The objective of this study was to evaluate the physicochemical characteristics of parents and experimental hybrids of net melon improvement program developed in the Universidade Estadual Paulista (UNESP), in Jaboticabal, São Paulo state, Brazil. Six net melon lineages (Jab-3, Jab-7, Jab-11, Jab-18, Jab-9, and Jab-20), belonging to the breeding program of melon from the UNESP were used and all their hybrid combinations as well as their reciprocal crosses. We used the randomized blocks design, with three replications and 38 treatments. From these 38 treatments [six lines, 15 hybrids, 15 reciprocal crosses and two commercial cultivars (Bônus nº2 and Louis)] we evaluated following physicochemical characteristics: fruit mass, pulp thickness, fruit coat thickness, netting degree of the coat, seed looseness, soluble solids, titratable acidity, pH, maturation index, pulp firmness, and Vitamin C. The minimum mass of 0.8 kg per fruit of net melon and the minimum of 10°Brix soluble solids allowed to identify the genotypes: Jab-9 x Jab-3, Jab-18 x Jab-20, Jab-18 x Jab-11, Jab-7 x Jab-20, Jab-7 x Jab-11, Jab-20 x Jab-7, and, Jab-3 x Jab-20, as promising. These genotypes are therefore suitable for participating in assessment tests in the main net melon producing areas of Brazil and on different planting dates.
The objective of this study was to evaluate the physicochemical characteristics of parents and experimental hybrids of net melon improvement program developed in the Universidade Estadual Paulista (UNESP), in Jaboticabal, São Paulo state, Brazil. Six net melon lineages (Jab-3, Jab-7, Jab-11, Jab-18, Jab-9, and Jab-20), belonging to the breeding program of melon from the UNESP were used and all their hybrid combinations as well as their reciprocal crosses. We used the randomized blocks design, with three replications and 38 treatments. From these 38 treatments [six lines, 15 hybrids, 15 reciprocal crosses and two commercial cultivars (Bônus nº2 and Louis)] we evaluated following physicochemical characteristics: fruit mass, pulp thickness, fruit coat thickness, netting degree of the coat, seed looseness, soluble solids, titratable acidity, pH, maturation index, pulp firmness, and Vitamin C. The minimum mass of 0.8 kg per fruit of net melon and the minimum of 10°Brix soluble solids allowed to identify the genotypes: Jab-9 x Jab-3, Jab-18 x Jab-20, Jab-18 x Jab-11, Jab-7 x Jab-20, Jab-7 x Jab-11, Jab-20 x Jab-7, and, Jab-3 x Jab-20, as promising. These genotypes are therefore suitable for participating in assessment tests in the main net melon producing areas of Brazil and on different planting dates.
Descrição
Palavras-chave
Cucumis melo, plant breeding, Fruit quality, Cucumis melo, Melhoramento de plantas, qualidade de fruto
Como citar
Horticultura Brasileira. Associação Brasileira de Horticultura, v. 31, n. 3, p. 351-355, 2013.