Bergvinson, D.J.

Current status of breeding maize germplasm tolerant to major insect pests in the tropics - Los Baños, Laguna (Philippines) PCARRD : 2000 - 11 pages - Printed

Host plant resistance (HPR) is an essential component in the integrated management of insects and diseases of maize causing losses in yield and grain quality. The International Center of Maize and Wheat Improvement (CIMMYT) has been able to develop maize germplasm resistant to insect attack during crop development as well as identify tolerant elite lines by screening elite CIMMYT germplasm. The best lines are presently being used in line recycling programs and in the formation of heterotic synthetics for both tropical and subtropical ecologies. The Entomology Program is continuing to develop sources of resistance to stem borers and armyworm through a recurrent selection program which has shown significant improvement over cycles of selection.. This paper reports on the elite lines presently identified for insect resistance as well as the research results on the biochemical basis of insect resistance and important interactions between soil fertility and HPR


English


Maize
Mexico
Pest resistance
Research projects
Selection
Tropical zones
Zea mays
Plant breeding

CIMMYT Tropical maize
baner

International Maize and Wheat Improvement Center (CIMMYT) © Copyright 2015. Carretera México-Veracruz. Km. 45, El Batán, Texcoco, México, C.P. 56237.
If you have any question, please contact us at CIMMYT-Knowledge-Center@cgiar.org

Centro Internacional de Mejoramiento de Maíz y Trigo (CIMMYT) © Copyright 2015. Carretera México-Veracruz. Km. 45, El Batán, Texcoco, México, C.P. 56237.
Si tiene cualquier pregunta, contáctenos a CIMMYT-Knowledge-Center@cgiar.org