ISHS Acta Horticulturae 814: XII EUCARPIA Symposium on Fruit Breeding and Genetics
PENTA AND TARDONA: TWO NEW EXTRA-LATE FLOWERING SELF-COMPATIBLE ALMOND CULTIVARS |
| Authors: | F. Dicenta, E. Ortega, P. Martínez-Gómez, R. Sánchez-Pérez, M. Gambin, J. Egea |
| Keywords: | Prunus dulcis, almond, breeding, extra-late flowering time, self-compatibility |
| Abstract:
Penta and Tardona are the new almond cultivars obtained in the Almond Breeding Program of CEBAS-CSIC, in Murcia (Spain). The objective of our breeding program is to obtain self-compatible almond cultivars that flower as late as possible, in order to avoid frost damage. Penta comes from the cross between S5133 and Lauranne. S5133 is a late flowering, self-incompatible selection of CEBAS-CSIC. Tardona comes from the cross between S5133 and R1000. R1000 is a late-flowering, self-compatible French selection. Both are self-compatible (S2Sf and S5Sf, respectively) with a high level of autogamy. They are extra-late flowering. In Santomera, where they were selected, they flower 20 and 30 days after Ferragnčs. These differences can be halved in the coldest areas. These extra-late flowering cultivars reduce more than 80% the risk of damage by frost in comparison with traditional late-flowering cultivars. Both are very floriferous and productive. While Penta matures very early, Tardona matures with Ferragnčs. Both are hard-shelled with 27% and 25% of kernel percentage. The kernel weight is 1 g for Penta, and smaller (0.8 g) for Tardona. Due to their extra-late flowering, they are recommended for areas with a high risk of frost. Both have been registered in the Community Plant Variety Office of the European Union. | |
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