Powell, Douglas2007-11-131999-04-262007-11-131996http://hdl.handle.net/10625/25086French version available in IDRC Digital Library: Une variété de haricot à résistance horizontaleSpanish version available in IDRC Digital Library: El sistema de resistencia horizontal : a la búsqueda de un mejoramiento de los frijolesText1 digital fileenPLANT BREEDINGFOOD CROPSBEANSMEXICOBreeding a better bean : the horizontal resistance approachHorizontal resistance and the potato blight fungusBreeding for resistance : stagesPlant breeding clubsReview of Raoul Robinson's Return to ResistanceCooperative Research Centre for Tropical Pest Management Internet siteIPM (Integrated Pest Management) Net Internet siteNational Integrated Pest Management Network Internet siteJournal Article