caa a22 4500 47713484X CHVBK 20180405111715.0 cr unu---uuuuu 170330e19970701xx s 000 0 eng 10.1023/A:1002954224234 doi (NATIONALLICENCE)springer-10.1023/A:1002954224234 Improving Phaseolus genotypes for multiple cropping systems [Elektronische Daten] [J.P. Baudoin, F. Camarena, M. Lobo] Common bean, Phaseolus vulgaris L. is intercropped or relay cropped with maize in many Andean highlands of Colombia and Peru. Breeding beans for the target multiple cropping systems is essential for the development of productive and sustainable agriculture for the Andean smallholders. Outline of the breeding programme should follow the farming system approach with the establishment of on-farm trials and early farmers involvement. Bean breeding is oriented to minimize intercrop competition and to stabilize complementarity with maize. Genetic traits needed for improved varieties are divided as follows : traits not interacting with the cropping systems, traits specific to intercrops and traits related with socioeconomic and seed quality aspects. Screening, prebreeding and recombination nursery are better made under sole cropping while varietal improvement and on-farm trials are conducted under the target multiple cropping systems. Breeding schemes may involve recurrent, pedigree and bulk hybrid selection. The given application concerns the genetic improvement of P. coccineus, P. polyanthus and interspecific hybrids of P. vulgaris for both simultaneous and relay intercropping in Colombia and Peru. Earliness, cold tolerance, resistance to fungus diseases (mainly Ascochyta leaf blight and anthracnosis) and seed yield potential were the major objectives of the bean improvement programme. Priority has been given to the exploitation of the large diversity available in the secondary gene pool of common bean. Kluwer Academic Publishers, 1997 beans nationallicence breeding nationallicence intercropping nationallicence multiple cropping nationallicence Phaseolus nationallicence relay cropping nationallicence Baudoin J.P. Faculté Universitaire des Sciences Agronomiques de Gembloux, 2 Passage des Déportés, 5030, Gembloux, Belgium aut Camarena F. Universidad Nacional Agraria La Molina, Apto 456, Lima, Peru aut Lobo M. Corporación Colombiana de Investigación Agropecuaria, C.I. La Selva, Apartado Aereo 100 ó 470, Rionegro, Colombia aut Euphytica Kluwer Academic Publishers 96/1(1997-07-01), 115-123 0014-2336 96:1<115 1997 96 10681 https://doi.org/10.1023/A:1002954224234 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1023/A:1002954224234 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Baudoin J.P. Faculté Universitaire des Sciences Agronomiques de Gembloux, 2 Passage des Déportés, 5030, Gembloux, Belgium aut NATIONALLICENCE 700 1- Camarena F. Universidad Nacional Agraria La Molina, Apto 456, Lima, Peru aut NATIONALLICENCE 700 1- Lobo M. Corporación Colombiana de Investigación Agropecuaria, C.I. La Selva, Apartado Aereo 100 ó 470, Rionegro, Colombia aut NATIONALLICENCE 773 0- Euphytica Kluwer Academic Publishers 96/1(1997-07-01), 115-123 0014-2336 96:1<115 1997 96 10681 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer