Resumo

RODRIGUEZ GROSS, Reynaldo et al. Location contributions of multienvironment sugarcane trials. cultrop [online]. 2013, vol.34, n.2, pp.38-44. ISSN 0258-5936.

The objective of this study were to assess the locations contributions in the final testing stage for the sugarcane (Saccharum spp.) Breeding Program in the south-eastern region of Cuba and to identify valuable locations for testing new genotypes and determine the most productive cultivars at each location. To assess these purpose 15 cultivars, six locations and two crops cycles were evaluated. Data of cane yield (t cane.ha-1), pol percentage in cane and pol.ha-1 were recorded. Results were visualized using Sites Regression model (SREG). Genotype by environment interaction was determined for each location, and variation among environments accounted the major variability for the three evaluated variables. Combining results obtained from GGE model we recommended adding the locations of «Enidio Diaz» and «Dos Ríos» to the «America Líbre» existing one in the final testing stage to improve the selection of new cultivars in the south-eastern region of Cuba.

Palavras-chave : sugarcane; cultivar; models; genotype-environment interaction.

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