Globe artichoke is one of the main crops of the irrigated plains of the Sardinia island (Italy). The most widespread cultivar ‘Spinoso Sardo’ is propagated by hypertrophic quiescent buds (“ovoli”). In summer, at the end of the productive cycle, farmers remove the dormant buds in the basal portion of the plants. Since it is not possible to select the propagated material, or to control its phytosanitary status, a slow and progressive degradation of the ‘Spinoso Sardo’ artichoke populations has occurred over time. The artichoke, excluding the new varieties multiplied by seed, is the only vegetable crop for which there is not the support of a nursery activity. To encourage the start of a nursery activity for the ‘Spinoso Sardo’ artichoke we suggested to obtain quiescent buds from sprouts removed in February-March from the best plants and grown on the ground in a high-density nursery (60 plants m-2) until the complete formation of the buds. In a trial conducted in the spring of 2018, this technique was compared with the sprout cultivation in a floating system with a higher density (226 plants m-2). The propagation material obtained in grown-ground nursery and in floating system was compared. In the floating system, two containers for cultivation, polystyrene trays and alveolate plateaux, were evaluated. The sprouts were collected in May 2018 and grown until the end of August 2018. In the soil thesis only the 11% of the sprouts produced quiescent buds compared to 24 and 21% in trays and in 40-hole plateaux in the floating system. Subsequently, a field trial was carried out to evaluate the propagation material obtained in the nursery phase. The material obtained in the nursery were transplanted in the first week of September. Only 79.1% of the propagation material obtained on the ground thesis survived the transplant against 94% obtained in floating system.
Application of bulked-segregant analysis coupled with whole genome sequencing (BSA-seq) for the identification of male sterility related genes in globe artichoke
Martina, M.;Acquadro, A.;Comino, C.;Martin, E.;Portis, E.
2025-01-01
Abstract
Globe artichoke is one of the main crops of the irrigated plains of the Sardinia island (Italy). The most widespread cultivar ‘Spinoso Sardo’ is propagated by hypertrophic quiescent buds (“ovoli”). In summer, at the end of the productive cycle, farmers remove the dormant buds in the basal portion of the plants. Since it is not possible to select the propagated material, or to control its phytosanitary status, a slow and progressive degradation of the ‘Spinoso Sardo’ artichoke populations has occurred over time. The artichoke, excluding the new varieties multiplied by seed, is the only vegetable crop for which there is not the support of a nursery activity. To encourage the start of a nursery activity for the ‘Spinoso Sardo’ artichoke we suggested to obtain quiescent buds from sprouts removed in February-March from the best plants and grown on the ground in a high-density nursery (60 plants m-2) until the complete formation of the buds. In a trial conducted in the spring of 2018, this technique was compared with the sprout cultivation in a floating system with a higher density (226 plants m-2). The propagation material obtained in grown-ground nursery and in floating system was compared. In the floating system, two containers for cultivation, polystyrene trays and alveolate plateaux, were evaluated. The sprouts were collected in May 2018 and grown until the end of August 2018. In the soil thesis only the 11% of the sprouts produced quiescent buds compared to 24 and 21% in trays and in 40-hole plateaux in the floating system. Subsequently, a field trial was carried out to evaluate the propagation material obtained in the nursery phase. The material obtained in the nursery were transplanted in the first week of September. Only 79.1% of the propagation material obtained on the ground thesis survived the transplant against 94% obtained in floating system.
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