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The relationship between root-hair growth, acid exudation and phosphorus (P) uptake as well as the quantitative trait loci (QTLs) associated with these traits were determined for a recombinant inbred line (RIL) population derived from the cross of two contrasting common bean (Phaseolus vulgaris L...


Yan, XLiao, HBeebe, Stephen E.Blair, Matthew W.Lynch, Jonathan P.[QTL mapping of root hair and acid exudation traits and their relationship to phosphorus uptake in common bean]QTL mapping of root hair and acid exudation traits and their relationship to phosphorus uptake in common bean

It is widely accepted that two major gene pools exist in cultivatedcommon bean, one Middle American and one Andean. Recently another gene pool,designated as North Andean and a fourth group (not considered to be adistinct gene pool) have been reported by the senior author and hiscolleagues. Many o...


Islam, F.M.A.Basford, KEJara, Carlos E.Redden, RJBeebe, Stephen E.[Seed compositional and disease resistance differences among gene pools in cultivated common bean]Seed compositional and disease resistance differences among gene pools in cultivated common bean

Bean golden mosaic (BGM) resistance within any one bean (Phaseolus vulgaris L.) race is inadequate. Pyramiding genes from different races would increase resistance and reduce pesticide use. Our objectives were to: (i) pyramid and compare BGM resistance of genotypes from intraracial versus interra...


Singh, Shree P.Morales, Francisco JoséMiklas, PNTerán Santofimio, Henry[Selection for bean golden mosaic resistance in intra- and interracial bean populations]Selection for bean golden mosaic resistance in intra- and interracial bean populations

One necrosis-inducing strain and four mosaic-inducing strains of bean common mosaic virus (BCMV) were differentially seed-transmitted in 14 mosaic-susceptible bean (Phaseolus vulgaris) cultivars. Dubbele Witte, Redlands Greenleaf B, Michelite, Sanilac, and Red Mexican 35 consistently transmitted ...


Morales, Francisco JoséCastaño, M.[Seed transmission characteristics of selected bean common mosaic virus strains in differential bean cultivars]Seed transmission characteristics of selected bean common mosaic virus strains in differential bean cultivars

While symbiotic nitrogen (N2) fixation by G. max and P. vulgaris reduces their need for combined N, N2 fixation under field conditions is rarely maximized. This paper reviews constraints to N2 fixation in these species, then examines the genetic variability recorded for traits affecting N2 fixati...


Graham, Peter H.Temple, Steven R.[Selection for improved nitrogen fixation in Glycine max (L.) Merr. and Phaseolus vulgaris L.]Selection for improved nitrogen fixation in Glycine max (L.) Merr. and Phaseolus vulgaris L.

Angular leaf spot (ALS) is one of the most devastating diseases of common bean (Phaseolus vulgaris L.) in tropical and subtropical countries. The causal fungus, Phaeoisariopsis griseola(Sacc.) Ferr. is highly variable and a diverse source of resistance genes is required to manage this disease. We...


Mahuku, George S.Jara, Carlos E.Cajiao V., César HernandoBeebe, Stephen E.[Sources of resistance to angular leaf spot (Phaeoisariopsis griseola) in common bean core collection, wild Phaseolus vulgaris and secondary gene pool]Sources of resistance to angular leaf spot (Phaeoisariopsis griseola) in common bean core collection, wild Phaseolus vulgaris and secondary gene pool
Singh, Shree P.[Breeding common beans of middle-American origin for seed yield in constrasting environments in tropics]Breeding common beans of middle-American origin for seed yield in constrasting environments in tropics

A collection trip of native Phaseolus germplasm was carried out over a 15-day period in the provinces of Jujuy, Salta, Tucuman, and Catamarca (Argentina) within the alt. range of 700-2200 m.a.s.l. Seeds of 26 wild populations of Phaseolus vulgaris var. aborigineus and of other species were collec...


Debouck, Daniel G.[Recoleccion de germoplasma nativo de Phaseolus]Recoleccion de germoplasma nativo de Phaseolus
Hallman, Guy J.Beebe, Stephen E.Salguero N., Víctor[Resistencia a Apion godmani Wagner y muestreo en viveros de frijol]Resistencia a Apion godmani Wagner y muestreo en viveros de frijol

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