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Title: Phenotypic variability of cowpea genotypes for immature seed harvesting.
Authors: AQUINO, D. A. L. de
SILVA, D. O. M. da
Affiliation: DEISY AIANE LIMA DE AQUINO, Universidade Estadual de Feira de Santana, Feira de Santana, BA; CARLOS ANTONIO FERNANDES SANTOS, CPATSA; DANILLO OLEGÁRIO MATOS DA SILVA, Centro Universitário Maurício de Nassau, Petrolina, PE.
Date Issued: 2021
Citation: Pesquisa Agropecuária Tropical, v. 51, e69614, 2021.
Description: Seed color, brightness and texture are important aspects for the consumption of immature beans. This study aimed to estimate the phenotypic variability among thirty cowpea genotypes for immature seed harvesting, in order to guide breeding programs. The experiment was carried out in a randomized blocks design, with three replications. The evaluated traits were immature seeds yield, pods and dry seeds production, number of immature pods, 100-immature seeds weight, immature pods length, number of seeds per immature pod, cooking time, harvesting period of immature pods, seed color, pod color, plant growth habit, opening of immature pods, seed threshing from immature pods, cultivation value and seed browning after threshing. Anova and three clustering methods were applied: UPGMA using the Jaccard coefficient of similarity; modified Tocher method based on the Gower algorithm; and k-means. All the analyses were performed based on the variable means of experiments evaluated in six environments. A statistically significant phenotypic variability was observed among all the quantitative traits. Discrepancies occurred in the accessions grouping and number of clusters. The accession BRS Acauã, in one group, and P508 and PCCR3F6L15, in other groups, showed a good quality for immature grain harvesting, were consistently grouped into different clusters and are recommended for use as parents in the development of new cultivars.
Thesagro: Feijão
Vigna Unguiculata
Melhoramento Genético Vegetal
NAL Thesaurus: Cluster analysis
Keywords: Feijão caupi
Análise de agrupamento
Variabilidade genética
Variabilidade fenotípica
Language: Ingles
Type of Material: Artigo de periódico
Access: openAccess
Appears in Collections:Artigo em periódico indexado (CPATSA)

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