SciELO - Scientific Electronic Library Online

 
vol.53 issue10Adaptability and stability of flood-irrigated rice cultivars released to the subtropical region of BrazilCorn agronomic traits and recovery of nitrogen from fertilizer during crop season and off-season author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand

Journal

Article

Indicators

Related links

Share


Pesquisa Agropecuária Brasileira

Print version ISSN 0100-204XOn-line version ISSN 1678-3921

Abstract

BERNARDO, Karla Annielle da Silva et al. Incorporation of compound inflorescences and selection of high-yielding progenies in cowpea. Pesq. agropec. bras. [online]. 2018, vol.53, n.10, pp.1150-1157. ISSN 0100-204X.  https://doi.org/10.1590/s0100-204x2018001000008.

The objective of this work was to obtain cowpea (Vigna unguiculata) progenies with compound inflorescences, short peduncles, early cycle, good plant architecture, and high-yielding potential. The initial genetic material consisted of 453 F2:3 progenies, selected from ten crosses and evaluated using Federer’s augmented block design, with two controls. Of these, 60 progenies from the F4:5 and F4:6 generations were selected and assessed in two consecutive experiments, both in a 8x8 lattice design with four controls and four replicates. Early selection was efficient at fixing the evaluated traits. A wide genetic variability was detected among and within progenies. The estimated and obtained heritability and genetic gains in the F4:5 and F4:6 progenies indicate the possibility of selection of early progenies with short peduncles, compound inflorescences, and productivity similar to or greater than that of the commercial cultivars used as controls.

Keywords : Vigna unguiculata; breeding; genetic variability; heritability; quantitative genetics.

        · abstract in Portuguese     · text in English     · English ( pdf )