ISHS Acta Horticulturae 726: IV International Symposium on Pistachios and Almonds
ADVANCES IN RETARDING BLOOM IN ALMOND |
| Authors: | R. Socias i Company, J.M. Alonso, M.T. Espiau, J.M. Anson, J. Gomez-Aparisi |
| Keywords: | Prunus amygdalus, blooming time, breeding |
| Abstract:
Crosses involving two early blooming cultivars (“Vivot” × “Blanquerna”), one early blooming cultivar and one late-blooming selection (G-3-4 × “Desmayo Largueta” and G-4-3 × “Marcona”) and two late-blooming genotypes (G-5-2 × “Bertina”) have shown a different pattern of transmission of blooming time: unimodal in the first cross and bimodal in the crosses involving a selection, where the presence of the late-bloom allele is assumed. In all families, it has been possible to obtain seedlings blooming later than the late-blooming parent, including the families in which one of the parents is early-blooming. This has been possible by taking advantage of the double nature of blooming time in almond, as it is both a quantitative and a qualitative trait. Although it is not possible to foresee how much blooming time may be retarded in almond, the cross of two very late blooming parents has produced seedlings blooming later than both parents. In addition, late bloom can be maintained as a breeding objective in crosses with early-blooming cultivars. | |
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