Características agronômicas, produtividade, qualidade de vagens e divergência genética em feijão-vagem de crescimento indeterminado
Data
2002-09-01
Autores
Peixoto, Nei
Braz, Leila T. [UNESP]
Banzatto, David Ariovaldo [UNESP]
Moraes, Ednan A.
Moreira, Francisco M.
Título da Revista
ISSN da Revista
Título de Volume
Editor
Associação Brasileira de Horticultura
Resumo
Avaliou-se a divergência genética entre quinze linhagens (Hav 13, Hav 14, Hav 21, Hav 22, Hav 25, Hav 38, Hav 40, Hav 41, Hav 49, Hav 53, Hav 56, Hav 64, Hav 65, Hav 67 e Hav 68) e cinco cultivares (Macarrão Favorito AG480, Macarrão Preferido AG482, Manteiga Maravilha AG481, Teresópolis AG484 e Macarrão Bragança) de feijão-vagem de crescimento indeterminado, utilizando-se vinte características agronômicas. O ensaio foi conduzido na AGENCIARURAL - EE de Anápolis, no período de 30/04 a 10/08/1998. Os dados foram submetidos às análises de variância e multivariada (distância D² de Mahalanobis e o método de agrupamento de Tocher). Houve diferenças significativas entre os genótipos para as características consideradas. Os genótipos Hav 13, Hav 49, Hav 56, Hav 64, Hav 68, Favorito AG480 e Teresópolis AG484 destacaram-se com relação ao conjunto de características favoráveis a produtores e consumidores. Houve maior freqüência de pares com maiores distâncias, quando um dos componentes era a cultivar Teresópolis AG484 ou Hav 49, e de pares com menores distâncias quando seus componentes tiveram como ancestral comum a linhagem Hab 229. Os genótipos distribuíram-se em quatro grupos, sendo um constituído exclusivamente pela linhagem Hav 49, outro englobando as cultivares Manteiga Maravilha AG481 e Teresópolis AG484. A linhagem Hav 41 e as cultivares Macarrão Favorito AG480 e Macarrão Preferido AG482 um terceiro grupo, e os demais genótipos um único grupo. As características que mais contribuíram para a divergência entre os genótipos foram o número de dias para o início de floração e o comprimento das vagens, com 58,11% do total, seguidas da porcentagem de palha na vagem seca, da largura das vagens, das alturas das plantas nas duas épocas avaliadas, do peso médio de vagem e do número de vagens por planta que, em conjunto, contribuíram com 85,73% do total.
Genetic divergence among fifteen breeding lines (Hav 13, Hav 14, Hav 21, Hav 22, Hav 25, Hav 38, Hav 40, Hav 41, Hav 49, Hav 53, Hav 56, Hav 64, Hav 65, Hav 67 and Hav 68) and five cultivars (Macarrão Favorito AG480, Macarrão Preferido AG482, Manteiga Maravilha AG481, Teresopolis AG484 and Macarrão Bragança) of pole beans was evaluated by 20 agronomic characteristics. The field trial was carried out at Anapolis Experiment Station, State of Goias (Brazil), from April 30 to August 10, 1998. The data obtained were submitted to analysis of variance and to the multivariate analysis (D² distance of Mahalanobis and grouping method of Tocher). There were statistical differences among genotypes for all studied characteristics. Hav 13, Hav 49, Hav 56, Hav 64, Hav 68, Macarrão Favorito AG480 and Teresopolis AG484 ranked best when the whole characteristics suitable to growers and consumers were considered. There were higher frequency of pairs with the highest distances, when Teresopolis AG484 or the breeding line Hav 49 were a member. The pairs with the lowest distance were those ones with the breeding line Hab 229 as common ancestor. The genotypes were classified into four groups, one with the inbred line Hav 49, a second with Manteiga Maravilha AG481 and Teresopolis AG 484. The inbred line Hav 41 and the cultivars Macarrão Favorito AG480 and Macarrão Preferido AG482 formed a third group. The remaining genotypes formed a single group. The characteristic time from sowing to beginning of blooming and pod length, with 58.11% of the contribution, followed by percentage of straw in the dry pod, pod width, plant height, pod weight and number of pod per plant. These characteristics were the most effective to genotypes divergence, reaching 85.73% of the total contribution.
Genetic divergence among fifteen breeding lines (Hav 13, Hav 14, Hav 21, Hav 22, Hav 25, Hav 38, Hav 40, Hav 41, Hav 49, Hav 53, Hav 56, Hav 64, Hav 65, Hav 67 and Hav 68) and five cultivars (Macarrão Favorito AG480, Macarrão Preferido AG482, Manteiga Maravilha AG481, Teresopolis AG484 and Macarrão Bragança) of pole beans was evaluated by 20 agronomic characteristics. The field trial was carried out at Anapolis Experiment Station, State of Goias (Brazil), from April 30 to August 10, 1998. The data obtained were submitted to analysis of variance and to the multivariate analysis (D² distance of Mahalanobis and grouping method of Tocher). There were statistical differences among genotypes for all studied characteristics. Hav 13, Hav 49, Hav 56, Hav 64, Hav 68, Macarrão Favorito AG480 and Teresopolis AG484 ranked best when the whole characteristics suitable to growers and consumers were considered. There were higher frequency of pairs with the highest distances, when Teresopolis AG484 or the breeding line Hav 49 were a member. The pairs with the lowest distance were those ones with the breeding line Hab 229 as common ancestor. The genotypes were classified into four groups, one with the inbred line Hav 49, a second with Manteiga Maravilha AG481 and Teresopolis AG 484. The inbred line Hav 41 and the cultivars Macarrão Favorito AG480 and Macarrão Preferido AG482 formed a third group. The remaining genotypes formed a single group. The characteristic time from sowing to beginning of blooming and pod length, with 58.11% of the contribution, followed by percentage of straw in the dry pod, pod width, plant height, pod weight and number of pod per plant. These characteristics were the most effective to genotypes divergence, reaching 85.73% of the total contribution.
Descrição
Palavras-chave
Phaseolus vulgaris, cycle, flowering, Vigor, green pods, Seed, Phaseolus vulgaris, Ciclo, Floração, Vigor, vagens verdes, Sementes
Como citar
Horticultura Brasileira. Associação Brasileira de Horticultura, v. 20, n. 3, p. 447-451, 2002.