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Drought is the major abiotic stress factor limiting yield of common bean (Phaseolus vulgaris L.) in smallholder systems in Latin America and eastern and southern Africa; where it is a main source of protein in the daily diet. Identification of shoot and root traits associated with drought resista...


Polanía Perdomo, José A.Rao, Idupulapati M.Cajiao V., César HernandoGrajales, Miguel A.Rivera, MarielaVelásquez, FedericoRaatz, BodoBeebe, Stephen E.[Shoot and Root Traits Contribute to Drought Resistance in Recombinant Inbred Lines of MD 23–24 × SEA 5 of Common Bean]Shoot and Root Traits Contribute to Drought Resistance in Recombinant Inbred Lines of MD 23–24 × SEA 5 of Common Bean
Rao, Idupulapati M.Beebe, Stephen E.Polanía Perdomo, José A.Grajales, Miguel A.Cajiao V., César HernandoRicaurte Oyola, José Jaumer[Evidence for genotypic differences among elite lines of common bean in the ability to remobilize photosynthate to increase yield under drought]Evidence for genotypic differences among elite lines of common bean in the ability to remobilize photosynthate to increase yield under drought

An expt. was established in Esparza (Costa Rica), on the integrated management of web blight (Thanatephorus cucumeris) in common beans under the min. tillage system. Var. Porrillo 70 (intermediate resistance) and ICA Pijao (susceptible) were used. Herbicides gliphosate and paraquat (1.0 kg/ha) of...


Sánchez, H.M.Alfaro M., R.Morales G., A.MORA B., B.Gálvez E., Guillermo E.[Manejo integrado de mustia hilachosa causada por Thanatephorus cucumeris (Frank) Donk en frijol comun]Manejo integrado de mustia hilachosa causada por Thanatephorus cucumeris (Frank) Donk en frijol comun

Yields of large-seeded Andean (A) common bean (Phaseolus vulgaris L.) cultivars of Chile and Nueva Granada races are 40 to 60% lower compared to their Middle American (M) counterparts of small-seeded Mesoamerica and medium-seeded Durango races. Our objective was to use the concept of congruity ba...


Singh, Shree P.Terán Santofimio, HenryMuñoz Perea, Carlos GermánOsorno Gonzalez, JM[Selection for seed yield in Andean intra-gene pool and Andean x middle American inter-gene pool populations of common bean]Selection for seed yield in Andean intra-gene pool and Andean x middle American inter-gene pool populations of common bean

Cowpea Vigna unguiculata (L.) Walp. is an important leafy vegetable and grain legume in Uganda. Unlike in commercial agriculture, where variety mixtures are known to give higher and more stable yields, the performance of cowpea variety mixtures in subsistence agriculture is little known. Mixtures...


Okonya, J.Maass, Brigitte L.[Potential of cowpea variety mixtures to increase yield stability in subsistence agriculture: preliminary results]Potential of cowpea variety mixtures to increase yield stability in subsistence agriculture: preliminary results

A breeding program to select low-mimosine lines of leucaena has been in progress since 1970. Selections were evaluated in two field trials at Lansdown. Although the low-mimosine selections did indeed have lower mimosine than the control cultivars, their dry matter yield was also inferior (about t...


Bray, RAHutton, EMBeattie, WM[Breeding Leucaena for low-mimosine: Field evaluation of selections]Breeding Leucaena for low-mimosine: Field evaluation of selections

The value of intra- and interracial populations in common bean (Phaseolus vulgaris L.) needs to be determined in order to create useful genetic variation for maximizing gains from selection, broadening the genetic base of commercial cultivars, and making efficient use of available resources. Five...


Welsh, WBushuk, WRoca, William M.Singh, Shree P.[Characterization of agronomic traits and markers of recombinant inbred lines from intra-and interracial populations of Phaseolus vulgaris L.]Characterization of agronomic traits and markers of recombinant inbred lines from intra-and interracial populations of Phaseolus vulgaris L.
Autor: Reynolds, SG

Exotic legumes (Calopogonium mucunoides, Centrosema pubescens, Pueraria phaseoloides, Macroptilium atropurpureum) and indigenous legumes (Desmodium heterophyllum, Mimosa pudica, Vigna luteola) were compared for dry matter (DM) and crude protein (CP) production, nitrogen fixation and nitrogen tran...


Reynolds, SG[Contributions to yield, nitrogen fixation and transfer by local and exotic legumes in tropical grass-legume mixtures in Western Samoa]Contributions to yield, nitrogen fixation and transfer by local and exotic legumes in tropical grass-legume mixtures in Western Samoa

Significant advances in increasing tolerance to the leafhopper Empoasca kraemeri Ross & Moore in common bean have been obtained using a new breeding scheme where yield under leafhopper attack is the principal selection criterion in the evaluation of progenies. However, to further refine this bree...


Kornegay, Julia L.Cardona, C.[Development of an appropriate breeding scheme for tolerance to Empoasca kraemeri in common bean]Development of an appropriate breeding scheme for tolerance to Empoasca kraemeri in common bean

The productivity and nutritive value of Chamaecrista rotundifolia cv. Wynn, Centrosema pascuorum cv. Cavalcade, Stylosanthes guianensis cv. Pucallpa and S. hamata cv. Verano as affected by single superphosphate fertilisation (SSP) and weed control were measured during the dry season in subhumid N...


Peters, MichaelTarawali, Shirley A.Alkamper, J.[Dry season performance of four tropical pasture legumes in subhumid west Africa as influenced by superphosphate application and weed control]Dry season performance of four tropical pasture legumes in subhumid west Africa as influenced by superphosphate application and weed control

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