| Revista: | Scientia Agricola |
| Base de datos: | PERIÓDICA |
| Número de sistema: | 000456230 |
| ISSN: | 0103-9016 |
| Autores: | Vettorazzi, Julio Cesar Fiorio1 Santa Catarina, Renato1 Poltronieri, Tathianne Pastana de Sousa1 Cortes, Diego Fernando Marmolejo2 Azevedo, Alinne Oliveira Nunes1 Miranda, Daniel Pereira1 Santana, Josefa Grasiela Silva1 Ramos, Helaine Christine Cancela1 Pereira, Messias Gonzaga1 |
| Instituciones: | 1Universidade Estadual do Norte Fluminense, Laboratorio de Melhoramento Genetico Vegetal, Campos dos Goytacazes, Rio de Janeiro. Brasil 2Empresa Brasileira de Pesquisa Agropecuaria, Mandioca e Fruticultura Tropical, Cruz das Almas, Bahia. Brasil |
| Año: | 2021 |
| Volumen: | 78 |
| Número: | 2 |
| País: | Brasil |
| Idioma: | Inglés |
| Tipo de documento: | Artículo |
| Enfoque: | Experimental, analítico |
| Resumen en inglés | The growing demand for quality of papaya by the domestic and international markets requires the development of genotypes that are capable of incorporating traits, such as high yield and fruit quality. This study estimated the genetic parameters and the specific combining ability of F4 papaya lines crossed to the SS-72/12 tester to identify genotypes with higher genetic value for hybrid production. We evaluated 169 treatments consisting of 62 topcross hybrid combinations, 97 F5 lines, and 10 controls in a 13 × 13 lattice design with five replicates and two plants per plot. The following traits were evaluated: plant height (PH), stem diameter (SD), first-fruit insertion height (FFIH), number of marketable fruits (NMF), number of deformed fruits (NDF), number of fruitless nodes (NFN), average fruit weight (FW), and yield (YLD). Differences p < 0.05 were found in most traits evaluated. The specific combining ability estimates indicate that hybrids formed by the cross between SS-72/12 tester and the following lines are promising, considering the multiple traits: UCLA08-088, UCLA08-101, UCLA08-071, UCLA08-014, UCLA08-025, UCLA08-028, UCLA08-122, UCLA08-055, UCLA08-026, and UCLA08-092. These hybrids meet the demands for domestic and international markets and may be available to producers as new papaya cultivars |
| Disciplinas: | Agrociencias |
| Palabras clave: | Frutales, Genética, Fitotecnia, Papaya, Carica papaya, Híbridos, Cruzas |
| Keyword: | Fruit trees, Genetics, Crop husbandry, Hybrids, Papaya, Carica papaya, Breeding |
| Texto completo: | Texto completo (Ver HTML) Texto completo (Ver PDF) |
