Comparison among recognized and non-recognized Phaseolus vulgaris L. landraces as traditional agro-food products of the Campania region (Italy)
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Efforts to safeguard and promote the on-farm maintenance of common bean (Phaseolus vulgaris L.) landraces should take seed quality into high consideration. Seed quality, in addition to suitable agronomic performances, is a good criterion to identify the most interesting materials among those traditionally cultivated. Ten landraces, still cultivated in the Campania region (southern Italy), were investigated. Five of these landraces, recognized as regional traditional agro-food products, are included in the list of the Italian typical products. Landraces belonging to both Mesoamerican and Andean common bean gene pools were present in the ten studied materials. The harvests of two subsequent growing seasons were analysed in order to compare the physico-chemical, culinary and nutritional seed quality of, recognised or not, landraces. Eighteen agronomic and nutritional traits were scored. When individually considered, none of the scored traits was able to discriminate the two groups of landraces. Conversely, submitting all traits to cluster analysis, two sub-clusters corresponding to recognised or not traditional products were obtained. Two landraces, one for each group, remained isolated. On the bases of these results, it can be inferred that the landraces recognized as traditional agro-food products have different culinary and nutritional characteristics in respect to the non-recognized ones.
KeywordsCommon bean Genetic resources Phaseolus vulgaris Quality marks Safeguard Seed composition
The authors thank G. Campanella for supporting in seed processing before chemical analyses.
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