ABSTRACT
In sesame crop, the average grain yield is around 650 kg ha-1, but its production potential is 1500 kg ha-1 with an appropriate fertilization program and water availability. The objective of this research was to verify the response of two sesame cultivars to organic and mineral fertilizers and their effects on productivity, final growth of biomass and some yield components of sesame. A field experiment was conducted with the BRS Seda and CNPA G4 cultivars, fertilized with five organic sources, plus two relative controls, fertilized with ammonium sulfate, in four replications, totaling 48 plots. The experimental design was a randomized block, with 12 treatments in a factorial scheme (5 x 2) + 2. The results were submitted to analysis of variance, Tukey test, and analysis of principal components and clustering. In fertilizations with organic sources, the equivalence of 80Kg of N/ha was considered. The following characteristics were evaluated: plant height, capsules per plant, stem diameter, dry biomass, seeds per capsule, seed yield per plant, productivity, among others. The nutrient sources were statistically significant for productivity, while the cultivars present significant effects for mass of a thousand seeds. In relation to productivity variables and dry biomass, there was no statistical difference among cultivars. Sesame cultivars responded similarly to organic fertilization in large part from verified variables.
Key words:
Sesamum indicum; dry biomass; yield components; sesame cultivars; principal component analysis
Thumbnail
Thumbnail
Thumbnail
