Genetic diversity in Coffea canephora genotypes for leaf nutrient concentration


 This study analyzed the genetic diversity in Coffea canephora genotypes by univariate and multivariate statistical analysis, based on concentrations of macro- micronutrients coffee leaves stages pre-flowering grain filling. The experiment was arranged randomized blocks with three replications, a 42x2 factorial design, which factor one represented evaluated two periods leaf sampling, i.e., data nutrient were subjected to analysis variance F test (p <0.01), parameters estimated. For diversity, grouped hierarchical unweighted pair-group method using arithmetic averages (UPGMA). relative importance trait predict also studied. There is divergence for concentration C. genotypes. With maximum limit 60% dissimilarity between genotypes, four groups formed UPGMA. 42 S most important diversity; this genotypic variability should be investigated enhance efficiency nutritional diagnosis.
 Highlights
 canephora
 nutrients phenological stage pre-anthesis different from bean filling period.
 Leaf sulfur characteristic that contributed among followed copper, boron magnesium.
 Genotypic considered better management.