Respuesta varietal en la etapa inicial de zafra en la Empresa Agroindustrial Azucarera Ciudad Caracas

Abstract

ABSTRACT

The objective of this work is to evaluate the varietal response of sugar cane in the Agroindustrial Sugar Company Ciudad Caracas in the initial stage of the sugar harvest. The observations were taken from the harvests between the months of December 2021 and January 2022, with four replicates in the plant strain and shoot. The sugar yield (percentage of pol in cane) was determined according to the methodology established by INICA. For the estimation of stability and phenotypic adaptability, the two months of evaluation in the two strains studied were defined as environments, and the 10 cultivars as genotypes. Finally, the definition of the test environments was complemented, with the determination of their discriminatory ability and representativeness. As a result, it was obtained that the cultivars C1051-73 and CP52-43 presented high yields and stability in the evaluated stage; as well as C323-68 and C86-56 instability. The cultivars C323-68 and C86-56 offered integrally lower yield values in the month of January, reaffirming their potential for late maturity. The best results between both strains were shown by C1051-73, CP52-43, C86-156, C86-12 and C90-469 for the beginning of the harvest.

Keywords: Stability, Adaptability, Early maturity, Discriminatory ability and Representativeness.