Associations among Morphological and Phonological Characters Representing Apricot Germplasm in Central Mexico

in Journal of the American Society for Horticultural Science
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  • 1 Instituto National de Investigaciones Forestales y Agropecuanas-Campo Experimental Norte de Guanajuato, Prolongación Zaragoza 408 Jardines de la Hacienda, Queretaro, Qro. 76180, Mexico

Twenty variables were recorded on 15 apricot (Prunus armeniaca L.) genotypes differing in growth habit and blossom time to detect possible associations among morphological and phonological traits. The widest range of variability observed among phenotypes was for fruit size and factors associated with adaptation to local conditions, such as blossom season and yield potential as expressed by number of buds, flowers, and fruits per length of fruiting spurs. The most important morphological traits correlated with fruit weight were tree growth habit, apical and basal diameter of fruiting spurs, and bud and leaf size. Multivariate analysis allowed tree and variable grouping, which might encompass the basic criteria for apricot breeding programs in central México.

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