Evaluation ot sweet and hot pepper (Capsicum annuum) genotypes tor res istance to Phytophthora capsici Leonian

Carmen Fernández M.1

Wilting caused by P. capsíci, is one of the most important pepper deseases in the livorld. Genetic resistance is a possible control strategy. Fortytwo genotypes of INIA's Vegetable Research Program germoplasm collection, were screened for resistance, using Pochard and Chambonet's technique, under greenhouse and field conditions. Smith 5 was highiy resistant and stable. This genotype may be used in a breeding programo Genotypes C. annuum 462, Thailand, Taiwan, Stal Cristal and LS 279 showed reactions of resistance, but of a unstable type. This suggests that they have to be studied more carefully before using them as progenitors. A good correlation of the reaction under greenhouse and under field conditions was found.

1 Estación Experimental La Platina (INIA), Casilla 439, Correo 3, Santiago, Chile.