CE: 1722 CF:cag10318
Selection of sugar cane genotypes in areas with environmental stress
Héctor Jorge Suárez1, Antonio Menéndez Sierra1, Randy Atencio Valdespino1 e Irenaldo Delgado Mora2
1 Compañía Azucarera La Estrella S.A. APDO. 0201-00049 Aguadulce, Rep. Panamá
2 ETICA Centro Villa Clara. Estación Territorial de Investigaciones de la Caña de Azúcar. Autopista Nacional km 246, Ranchuelo, Villa Clara, Cuba
The results are presented in areas with environmental stress (Capellanía and La Palmita) in the Ingenio Ofelina of Panama, whose limiting factors are drought and bad drainage respectively. 34 genotypes were studied, 24 in Locality one and 29 in the two, coinciding 18 in both sites. The trials were evaluated in the first shoot strain, the harvest variables studied were, t ha-1 cane, percentage of pol in cane and t pol ha-1. As a result, the analysis of main components explained 85.50 % of the total variation and allowed to characterize the localities. The cultivars with the best performance in Locality one were B0072, CT-14, E07-11, CT-41 and E07-14, while the cultivars CP89-2143, CT-14 and E07-11 stood out in the 2, coinciding in both sites E07-11 and CT-14. The highest contribution to the total phenotypic variance corresponded to the environmental effects for the percentage of pol in cane (83.15 %) and t pol ha-1 (47.62 %) while for the cane ha-1 it was the interaction genotype environment.