Yield, yield stability and farmers’ preferences of evolutionary populations of bread wheat: A dynamic solution to climate change
| Autor: | Vincenzo Battezzato, Andrea Albino, Virginia Altavilla, Riccardo Bocci, Salvatore Ceccarelli, Carlo Arcostanzo, Matteo Petitti, Sandra Spagnolo, Gea Galluzzi, Riccardo Franciolini, Giuseppe Li Rosi, Paola Migliorini, Paolo Di Luzio, Rosario Floriddia, Bettina Bussi, Giovanni Faggio, Modesto Petacciato |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
0106 biological sciences
education.field_of_study Food security Natural selection Agroforestry Yield (finance) Population Biodiversity food and beverages Soil Science 04 agricultural and veterinary sciences Plant Science Biology 01 natural sciences Agronomy 040103 agronomy & agriculture Organic farming 0401 agriculture forestry and fisheries Population growth education Agronomy and Crop Science Selection (genetic algorithm) 010606 plant biology & botany |
| Zdroj: | European Journal of Agronomy. 121:126156 |
| ISSN: | 1161-0301 |
| Popis: | The role of biodiversity in plant breeding needs to be reconsidered to cope with the complexity, location specificity and combined challenges of climate change, human population increase, human health and food security, safety and sovereignty. From a biological viewpoint, heterogeneous plant populations derived from evolutionary plant breeding may address most of these grand challenges. Field trials were conducted over four years and four locations under organic farming conditions to test the hypothesis that evolutionary populations planted in contrasting locations, evolve adapting to the local conditions and becoming distinct from one another. The experiment also included mixtures, landraces and a modern variety of bread wheat. The results show evidence of divergent selection for grain yield under the sole effect of natural selection by which the best performing evolutionary populations yielded as much or more than the commercial variety. Farmers' selection within one of the evolutionary populations was effective in improving yield and yield stability above those of the original population across years and locations. Farmers' preference was not always associated with grain yield and was not gender dependent. We conclude that evolutionary populations are able to gradually evolve, adapting to each environment in which their seed is multiplied, reaching high and stable yield levels thus ensuring income to farmers, both as seed and as grain. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect