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Bud density and growing habit as selection criteria in almond
Flower bud location and distribution were studied in 42 self-compatible almond selections from the Zaragoza breeding programme by counting all flower buds on four lateral branches of each selection. Total bud density varied from 0.11 to 0.66 bud/cm, whereas bud productivity ranged from 28.49 to 152.19 bud/cm2. These values are relatively low for almond, but could be due to the young age of the trees. Two thirds of the selections showed higher bud density on the lateral branches than on the main branch. Shoot length and shoot thickness also affect bud density and productivity, thus indicating the advisable pruning for each selection according to flower position on the tree. The absence of clustering of the selections by their genealogical origin may indicate that bud density and productivity, traits showing low heritability, could already have been the object of previous selection of the clones studied.
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Mots-clés
AMANDE, BOURGEON, DENSITE, PORT DE LA PLANTE, PROVENANCE, PRUNUS AMYGDALUSCiter cet article
Kodad O., Socias i Company R. Bud density and growing habit as selection criteria in almond. In : Oliveira M.M. (ed.), Cordeiro V. (ed.). XIII GREMPA Meeting on Almonds and Pistachios . Zaragoza : CIHEAM, 2005. p. 93-100. (Options Méditerranéennes : Série A. Séminaires Méditerranéens; n. 63). 13. Meeting of the Mediterranean Research Group for Almond and Pistachio, 2003/06/01-05, Mirandela (Portugal). http://om.ciheam.org/om/pdf/a63/05600016.pdf