Comparative responses of selected Phaseolus vulgaris germ plasm inoculated artificially and naturally with bean golden mosaic virus

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dc.creatorMorales, Francisco José
dc.creatorNiessen, AI
dc.date1988
dc.date2014-09-24T08:41:54Z
dc.date2014-09-24T08:41:54Z
dc.date.accessioned2026-06-27T14:47:50Z
dc.descriptionA total of 44 bean (Phaseolus vulgaris L.) genotypes was evaluated for disease reactions to bean golden mosaic virus (BGMV) by mechanical and whitefly inoculation under glasshouse and field conditions, respectively. Most of the genotypes reacted similarly under both screening conditions, with a few discrepancies ascribed to the poor adaptation of some temperate bean genotypes to the tropical conditions of the field evaluation site (Monjas, Guatemala). The mechanical inoculation technique made possible the observation of different plant responses, namely delayed symptom expression, tolerance, and disease escape in diverse cultivars. However, most of the bean cultivars tested were severely affected when test plants were mechanically inoculated with BGMV at the beginning of the primary leaf stage. The glasshouse evaluation of six parental genotypes used to develop two highly BGMV-resistant lines, DOR 303 and A 429, showed all six parents to be BGMV-susceptible, suggesting the occurrence of transgressive segregation. The experimental bean lines NW 59 and 63, selected for their immunity to a leafhopper-transmitted bean geminivirus (beet curly top virus), proved susceptible to BGMV under both field and glasshouse conditions, demonstrating a marked difference in the genetics of resistance to these two geminiviruses in P. vulgaris. It is concluded here that, while field evaluations are needed to screen segregating populations, the mechanical inoculation of bean genotypes with BGMV yields valuable information on their response to the virus and potential use as parents for breeding purposes.
dc.identifierhttps://hdl.handle.net/10568/43282
dc.identifier.urihttp://hdl.handle.net/123456789/88715
dc.languageen
dc.publisherScientific Societies
dc.rightsOpen Access
dc.subjectphaseolus vulgaris
dc.subjectbean golden mosaic virus
dc.subjectgermplasm
dc.subjectinoculation
dc.subjectgenotypes
dc.subjectlaboratory equipment
dc.subjectfield experiments
dc.subjectresistance
dc.subjectplant damage
dc.subjectdiseases and pathogens
dc.subjectpests
dc.subjectresearch
dc.subjectviroses
dc.subjectvirus del mosaico dorado del frijol
dc.subjectgermoplasma
dc.subjectinoculacion
dc.subjectgenotipos
dc.subjectexperimentos de laboratorio
dc.subjectexperimentos de campo
dc.subjectresistencia
dc.subjectdanos causados a la planta
dc.titleComparative responses of selected Phaseolus vulgaris germ plasm inoculated artificially and naturally with bean golden mosaic virus
dc.typeJournal Article

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