Twelve IAC sugar cane clones derived from crossings carried out in 1982, were evaluated from 1990 to 1994, at three sites of the Ribeirão Preto/ region, in Rhodic Hapludox soils. Experimental trials were set up using a complete randomized blocks design, with six replications per site. Cane and sugar yield (t.ha-1), stalk sugar content, stalk fiber content and stalk number were estimated in all four growing seasons. IAC82-2045 the clone significantly outperformed control varieties and other experimental clones regarding yield potential, revealing intermediate sugar content and being proper for mid to late season harversting. Genetic parameter estimates have shown significant genotype x environment interactions, mostly for cane and sugar yield potentials.
sugarcane; improvement; breeding; interaction genotype-environment
