Abstract
For the realization of this work three experiments were established in the Base Bussines Units Loynaz Hechavarria, Fernando de Dios and Lopez-Pena, where 12 cultivars and two controls were evaluated under rainfed conditions, during October 2010–March 2014 period, they were evaluated the harvest variables (percentage of pol in cane, tons of cane per hectare and tons of pol per hectare), in order to identify cultivars that present general phenotypic stability in different environments in study. Multivariate analysis methods were used to evaluate genotypes, environments and genotype - environment interaction. Use of multivariate model of main effects of genotypes, plus effects of genotype-environment interaction (GEI biplot), from Site Regression Model (SREG) allowed to identify the cultivars the best yield and with general stability in all environments, which were C92-524, C97-445 and C95-416, which also presented a satisfactory phytosanitary behavior under natural conditions. Recommendation the incorporation of same to the varieties projects of Base Business Units of Holguin Sugar Company where they were evaluated.
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