Agronomic performance of cowpea genotypes in southwestern Brazilian Amazon

Abstract: The objective of this work was to evaluate the agronomic performance cowpea (Vigna unguiculata) genotypes over three crop years, in ecosystem Rio Branco, state Acre, Brazil. experiments were carried out 2016, 2017, and 2018 seasons, a randomized complete block design, with four replicates. Eight traits evaluated 14 genotypes, which included: 12 lines (BDO 1-5-11, BDO 1-5-15, 1-5-19, 1-5-24, PDO 1-5-26, 1-5-4, 1-5-5, 1-5-7, 1-5-8, 1-5-10, 1-5-14) two cultivars (BRS Tumucumaque BRS Imponente). A significant difference observed genotype x year interaction, for most traits. Although there no statistical between studied dry seed productivity higher than national average. All from genetic breeding program show equivalent favorable performances environmental conditions Branco. Therefore, these can be selected incorporation into production system