The objective of this research was to evaluate the genetic variability and associations between traits, in order to identify traits that can be used as selection criteria in the development process of high-yielding common bean cultivars in a breeding program. Plant height (PH), primary branches per plant (BP), pod length (POL), seeds per pod (SPO), pods per plant (POP), days to anthesis (DA), days to flowering (DF), days to maturity (DM), 100 seeds mass (SM) and grain yield (Y), were evaluated at Nampula Research Station, Mozambique, an augmented block design with 24 accessions, three checks and four blocks. Analysis of variance, genetic parameters, similarity network and path analysis were performed based on the genetic correlation matrix. The results indicated high heritability for all traits. High genetic variability were shown by PH, Y, POP, SM, SPO and BP. High genotypic correlations were shown by POP, SPO, DM, DA and BP. The POP and SPO additionally showed high positive direct effects and can be used as selection criteria in the development process of high-yielding bean cultivars in a breeding program.

The objective of this work was to evaluate the genetic variability and associations of yield traits of pigeon pea, for indication of this crop for the breeding program in Mozambique. Eleven pigeon pea traits were evaluated in a experimental design with three randomized complete blocks, in the environments of Namapa (I) and Montepuez (II), in 2017/2018. To evaluate the traits, analyses of variance, genetic parameters, correlations, correlation network, and path analysis were used. In both environments, there is a high genetic and phenotypic variability for primary branches, secondary branches, pods per plant, number of seed per pod, pod width, pod length, and yield, as well as a high heritability for all traits except for plant height. The primary and secondary branches have a high correlation with yield and a positive direct effect on it. However, plant height and pods per plant show a high phenotypic variability and a positive correlation with yield in environment I. Pods per plant, weight of 100 seed, and primary branches show high direct positive effects in environment I, and secondary branches and number of seed per pod, in environment II. The primary and secondary branches show high variability and associations with yield in both environments and are indicated for the pigeon pea breeding program in Mozambique.

A semeadura de leguminosas em Moçambique é feita maioritariamente por mulheres utilizando enxada, paus e outros instrumentos, que demandam muito tempo e esforço humano. A avaliação das tecnologias de semeadora manual de leguminosas em agricultores de feijão nhemba no distrito de Mogovolas com o objectivo de aumentar a produtividade, rendimento, redução do esforço físico, tempo gasto na plantação, mão-deobra no campo dos pequenos produtores e a integração do gênero nas atividades é uma das soluções. A semeadora é leve e fácil de transportar. Um teste foi montado usando o Randomized Complete Block Design e cinco demonstrativos em testes agrícolas da tecnologia com produtores. O perfil do agricultor foi estudado para determinar os fatores que determinam a adoção de tecnologias que também foram analisados por meio de entrevistas semiestruturadas. A análise de dados estatísticos para os ensaios foi realizada usando GenStat 12ª Edição e Stata 14.0 para análise do perfil dos agricultores de dados. Os resultados mostraram diferenças significativas entre os locais para as variáveis altura de planta, produtividade e época de semeadura. Os métodos de plantio apresentaram diferenças significativas para a variável densidade de plantas. A época de plantio teve diferenças significativas com menor tempo para a tecnologia semeadora manual de leguminosas. O custo-benefício mostrou-se favorável para o uso da semeadora manual de leguminosas.