caa a22 4500 445324198 CHVBK 20180317142714.0 cr unu---uuuuu 170323e20111001xx s 000 0 eng 10.1007/s10681-011-0468-0 doi (NATIONALLICENCE)springer-10.1007/s10681-011-0468-0 New genetic sources of resistance in the genus Phaseolus to individual and combined aluminium toxicity and progressive soil drying stresses [Elektronische Daten] [Louis Butare, Idupulapati Rao, Philippe Lepoivre, José Polania, César Cajiao, Juan Cuasquer, Stephen Beebe] Bean species and genotypes show wide phenotypic variability in relation to aluminium (Al) resistance and progressive soil drying. The objective of this study was to identify and characterize sources of resistance to Al toxicity and progressive soil drying among six genotypes of common bean (Phaseolus vulgaris), four of runner bean (P. coccineus), and one of tepary bean (P. acutifolius), using hydroponic and soil cylinder screening methods. One experiment on hydroponic screening of Al resistance was carried out using a basal nutrient solution with and without 20μM Al. Two experiments were carried out using two oxisols in 80cm long soil cylinders with high Al (HAl) and low Al (LAl) saturation treatments. The three experiments showed an average of 36.9-53.5% inhibition of root growth with HAl compared with LAl treatments. Differences in root development and distribution were observed among genotypes and species. Two accessions of P. coccineus (G35346-2Q, G35464-5Q) and one Andean common bean genotype (ICA Quimbaya) were outstanding in root and shoot growth in the HAl treatments. P. coccineus accession (G35346-3Q) was outstanding under combined stress of Al-toxic acid soil and progressive soil drying. Accessions of P. coccineus may represent unique sources of Al resistance for the improvement of common bean through interspecific crosses. Springer Science+Business Media B.V., 2011 Abiotic stress nationallicence Acid soil nationallicence Aluminium resistance nationallicence Root growth nationallicence Screening methods nationallicence Water stress nationallicence HAl : High aluminium soil saturation nationallicence LA : Leaf area nationallicence LAl : Low aluminium soil saturation nationallicence MRD : Mean root diameter nationallicence NRT : Number of root tips nationallicence RDW : Root dry weight nationallicence REGWQ : Ryan-Einot-Gabriel-Welsh Multiple Test nationallicence R:S : Root to shoot nationallicence SDW : Shoot dry weight nationallicence SRL : Specific root length nationallicence TPRL48h : Tap root length at 48h of exposure to with and without aluminium in solution nationallicence TPRL120h : Tap root length at 120h of exposure to with and without aluminium in solution nationallicence TRER : Tap root elongation rate nationallicence TRL : Total root length nationallicence VRD29d : Visual rooting depth at 29days nationallicence VRD33d : Visual rooting depth at 33days nationallicence WS : Water stress nationallicence WW : Well watered nationallicence Butare Louis Centro Internacional de Agricultura Tropical (CIAT), A. A. 6713, Cali, Colombia aut Rao Idupulapati Centro Internacional de Agricultura Tropical (CIAT), A. A. 6713, Cali, Colombia aut Lepoivre Philippe Université de Liège (ULg), Gembloux Agro-Bio Tech, Unité de Phytopathologie, Passage des Déportés, 2, 5030, Gembloux, Belgium aut Polania José Centro Internacional de Agricultura Tropical (CIAT), A. A. 6713, Cali, Colombia aut Cajiao César Centro Internacional de Agricultura Tropical (CIAT), A. A. 6713, Cali, Colombia aut Cuasquer Juan Centro Internacional de Agricultura Tropical (CIAT), A. A. 6713, Cali, Colombia aut Beebe Stephen Centro Internacional de Agricultura Tropical (CIAT), A. A. 6713, Cali, Colombia aut Euphytica Springer Netherlands 181/3(2011-10-01), 385-404 0014-2336 181:3<385 2011 181 10681 https://doi.org/10.1007/s10681-011-0468-0 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10681-011-0468-0 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Butare Louis Centro Internacional de Agricultura Tropical (CIAT), A. A. 6713, Cali, Colombia aut NATIONALLICENCE 700 1- Rao Idupulapati Centro Internacional de Agricultura Tropical (CIAT), A. A. 6713, Cali, Colombia aut NATIONALLICENCE 700 1- Lepoivre Philippe Université de Liège (ULg), Gembloux Agro-Bio Tech, Unité de Phytopathologie, Passage des Déportés, 2, 5030, Gembloux, Belgium aut NATIONALLICENCE 700 1- Polania José Centro Internacional de Agricultura Tropical (CIAT), A. A. 6713, Cali, Colombia aut NATIONALLICENCE 700 1- Cajiao César Centro Internacional de Agricultura Tropical (CIAT), A. A. 6713, Cali, Colombia aut NATIONALLICENCE 700 1- Cuasquer Juan Centro Internacional de Agricultura Tropical (CIAT), A. A. 6713, Cali, Colombia aut NATIONALLICENCE 700 1- Beebe Stephen Centro Internacional de Agricultura Tropical (CIAT), A. A. 6713, Cali, Colombia aut NATIONALLICENCE 773 0- Euphytica Springer Netherlands 181/3(2011-10-01), 385-404 0014-2336 181:3<385 2011 181 10681 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer