Genetic improvement and related activities. Improvement of individual characters. Resistance to invertebrate pests

Abstract

The search for new sources of resistance to Empoasca kraemeri, Acanthoscelides obtectus, Zabrotes subfasciatus, and Apion godmani among bean germplasm materials continued in 1986. Special emphasis was placed on the study of mechanisms of resistance to E. kraemeri, A. obtectus, and Z. subfasciatus and in the reorganization of a network to evaluate resistance to A. godmani in Central America. Studies on the biology, ecology, mass rearing, and possible var. preferences of Bemisia tabaci and Trialeurodes vaporariorum were also initiated. Results are included in table form. (CIAT)

La busqueda de nuevas fuentes de resistencia a Empoasca kraemeri, Acanthoscelides obtectus, Zabrotes subfasciatus y Apion godmani entre materiales de germoplasma de frijol continuo en 1986. Se le dio especial enfasis al estudio de mecanismos de resistencia a E. kraemeri, A. obtectus y Z. subfasciatus y a la reorganizacion de una red para evaluar la resistencia a A. godmani en America Central. Tambien se iniciaron estudios acerca de la biologia, ecologia, cria masiva y posibles preferencias de var. de Bemisia tabaci y Trialeurodes vaporariorum. Se incluyen los resultados tabulados. (CIAT)