The study was conducted with the aim of enriching the list of clones extended in Côte d'Ivoire. Thus, the large-scale behavior of five (5) rubber tree genotypes selected from small-scale clone fields was assessed. The methodology consisted comparing the agronomic behavior of these five genotypes with that of the reference control GT1 in a Fisher block design with 4 repetitions for 18 years. The trees were tapped for 13 years and stimulated 10 times a year. The results showed that clones IRCA825 and IRCA733 were the most vigorous both in the immature phase and during tapping. They were tapped at 5 years of age, while the others were tapped at 6 years. These two clones were also the most susceptible to tapping panel dryness. Moreover, clone IRCA825 proved susceptible to wind breakage. Despite this, it remained the most yielding, with an average yield of 3053 kg/ha/year, 54% higher than that of GT1. Clones RRIM712 and IRCA733 yielded 38% and 29% more than clone GT1. Therefore, RRIM712 and IRCA733 appear to be high-yielding clones to be promoted in monoclonal plots with adapted stimulation regimes. BPM 24, whose production level is equivalent to that of GT1, can be used as a diversification clone.

Keywords: Hevea brasiliensis, Côte d'Ivoire, Rubber yield, vigour