Characterization of Some Self-compatible Almonds. II. Flower Phenology and Morphology

in HortScience
Author: D. Bernad1
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  • 1 Unidad de Fruticultura, Servicio de Investigación Agraria, Diputación General de Aragón, Apartado 727, 50080 Zaragoza, Spain

Bloom evolution and flower quality were studied in 10 almond [Prunus amygdalus Batsch syn. P. dulcis (Mill.) D.A. Webb] selections of the Zaragoza breeding program. The opening of individual flowers followed a normal distribution, with deviations reflecting temperature differences during the bloom period. The first open flowers are of better quality than later ones and may contribute more to fruit set. The relative stigma–anther position reflected the possibility of natural autogamy in three of the 10 selections. Natural autogamy might allow single-cultivar orchards without the need for pollinating insects.