Abstract
Participatory plant breeding (PPB) has been proposed as a breeding methodology to increase/optimize the development and adoption of several new varieties each one different and each adapted to individual microclimates. Tomato is an important horticultural crop in Europe, and in particular in Italy, and there is an increasing demand for organic tomatoes. Therefore, a PPB program was considered as the ideal approach to rapidly develop and deliver in each organic microclimate, a number of different tomato lines directly selected under organic conditions. Visual selection was applied by farmers and researchers in four F2 populations and in the F3 families obtained from selected F2 plants grown in unreplicated row and column designs in five locations. The agronomic performance of the F2-derived F4 families at the end of two cycles of selection was evaluated by comparing the selected materials with commercial hybrids. Production traits and qualitative plant and fruit traits (plant vigor and hardiness, disease resistance, fruit quality) were analysed. A total of 15 F4 families was identified, of which three out-yielded significantly the respective commercial F1 hybrid, and twelve did not differ significantly from it. The putative superior varieties that are being developed from the F4 families represent important genetic material for organic agriculture, since they would assure good productive capacity and a seed availability at low cost.
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Acknowledgments
The authors thank Mr. Celestino Benettazzo, Mr. Enzo Malavolta, Mr. Roberto Battaglia, Mr. Pietro Bastoni, Dr. Andrea Pepe, Dr. Tommaso Ciriaci and Dr. Federica Fontana for their contribution in making this work possible. This paper is a result of the PNSB II research Project (Piano Nazionale Sementiero per l’Agricoltura Biologica - National plan for organic seed production) funded by the Organic Farming Office of the Italian Ministry of Agricultural Policies.
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Campanelli, G., Acciarri, N., Campion, B. et al. Participatory tomato breeding for organic conditions in Italy. Euphytica 204, 179–197 (2015). https://doi.org/10.1007/s10681-015-1362-y
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DOI: https://doi.org/10.1007/s10681-015-1362-y