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Terminal drought is a worldwide constraint to common bean production and its negative effects will be increased by climate change. The objective of this research was to characterize phenotypically advanced lines and commercial cultivars of common bean for their resistance to terminal drought stre...


Chaves-Barrantes, Néstor FelipePolanía Perdomo, José A.Muñoz Perea, Carlos GermánRao, Idupulapati M.Beebe, Stephen E.[Caracterización fenotípica por resistencia a sequía terminal de germoplasma de frijol común = Phenotypic characterization of common bean germplasm for resistance to terminal drought]Caracterización fenotípica por resistencia a sequía terminal de germoplasma de frijol común = Phenotypic characterization of common bean germplasm for resistance to terminal drought

• Aluminium (Al) toxicity and drought are two major stress factors limiting common bean (Phaseolus vulgaris) production on tropical acid soils. Polyethylene glycol (PEG) treatment reduces Al uptake and Al toxicity. • The effect of PEG 6000‐induced osmotic stress on the expression of genes was st...


Yang, Z.B.Eticha, DRotter, BRao, Idupulapati M.Horst, Walter J.[Physiological and molecular analysis of polythylene glycol-induced reduction of aluminium accumulation in the root tips of common bean (Phaseolus vulgaris)]Physiological and molecular analysis of polythylene glycol-induced reduction of aluminium accumulation in the root tips of common bean (Phaseolus vulgaris)
Polanía Perdomo, José A.Grajales, Miguel A.Cajiao V., César HernandoGarcía, R.Ricaurte Oyola, José JaumerBeebe, Stephen E.Rao, Idupulapati M.[Physiological evaluation of drought resistance in elite lines of common bean (Phaseolus vulgaris L.) under field conditions]Physiological evaluation of drought resistance in elite lines of common bean (Phaseolus vulgaris L.) under field conditions
Rangel Becerra, AFRao, Idupulapati M.Horst, Walter J.[Short and medium-term root-growth responses to aluminium in common bean (phaseolus vulgaris L.)]Short and medium-term root-growth responses to aluminium in common bean (phaseolus vulgaris L.)
Rangel Becerra, AFRao, Idupulapati M.Horst, Walter J.[Spatial aluminium sensitivity of root apices of common bean (Phaseolus vulgaris L.)]Spatial aluminium sensitivity of root apices of common bean (Phaseolus vulgaris L.)

Common bean (Phaseolus vulgaris L.) proved to be very sensitive of low pH (4.3), with large genotypic differences in proton sensitivity. Therefore, proton toxicity did not allow the screening of common bean genotypes for aluminium (Al) resistance using the established protocol for maize (0.5 mM C...


Rangel Becerra, AFMobin, MRao, Idupulapati M.Horst, Walter J.[Proton toxicity interferes with the screening of common bean (Phaseolus vulgaris L.) genotypes for aluminium resistance in nutrient solution]Proton toxicity interferes with the screening of common bean (Phaseolus vulgaris L.) genotypes for aluminium resistance in nutrient solution

Plant root development can be largely affected through the association of roots with plant growth-promoting rhizobacteria (PGPR). However, little is known about the identity of plant genes enabling such PGPR-plant root associations. Differences in the responsiveness to PGPR among cultivars sugges...


Remans, RBeebe, Stephen E.Blair, Matthew W.Manrique, GTovar Luque, ERao, Idupulapati M.Croonenborghs, ATorres Gutierrez, REl-Howeity, MMichiels, JVanderleyden, J[Physiological and genetic analysis of root responsiveness to auxin-producing plant growth-promoting bacteria in common bean (Phaseolus vulgaris L.)]Physiological and genetic analysis of root responsiveness to auxin-producing plant growth-promoting bacteria in common bean (Phaseolus vulgaris L.)

Aluminum (Al) toxicity is a major limiting factor of crop production in acid soils, which are found mostly in developing countries of the tropics and sub-tropics. Common bean (Phaseolus vulgaris L.) is particularly sensitive to Al toxicity; and development of genotypes with better root growth in ...


López Marin, H.D.Rao, Idupulapati M.Blair, Matthew W.[Quantitative trait loci for root morphology traits under aluminum stress in common bean (Phaseolus vulgaris L.)]Quantitative trait loci for root morphology traits under aluminum stress in common bean (Phaseolus vulgaris L.)

An estimated 60% of common bean (Phaseolus vulgaris L.) production worldwide is at risk of drought. A breeding program was developed at the International Center of Tropical Agriculture (CIAT) to create drought resistant breeding lines with varietal potential in the small red, small black, cream (...


Beebe, Stephen E.Rao, Idupulapati M.Cajiao V., César HernandoGrajales, Miguel A.[Selection for drought resistance in common bean also improves yield in phosphorus limited and favorable environments]Selection for drought resistance in common bean also improves yield in phosphorus limited and favorable environments

Aluminium (Al) toxicity limits common bean productivity in acid soil regions of the tropics. To improve Al resistance of common bean, Al-sensitive Phaseolus vulgaris (SER16) was crossed to Al-resistant P. coccineus (G35346-3Q) to create 94 F5:6 recombinant inbred lines (RILs) of the pedigree SER1...


Butare, LouisRao, Idupulapati M.Lepoivre, PhilippeCajiao V., César HernandoPolanía Perdomo, José A.Cuasquer, Juan B.Beebe, Stephen E.[Phenotypic evaluation of interspecific recombinant inbred lines (RILs) of Phaseolus species for aluminium resistance and shoot and root growth response to aluminium–toxic acid soil]Phenotypic evaluation of interspecific recombinant inbred lines (RILs) of Phaseolus species for aluminium resistance and shoot and root growth response to aluminium–toxic acid soil

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