SEASONAL CARBOHYDRATE VARIATION IN LEAVES AND INFLORESCENCES OF THE AVOCADO (<em>Persea Americana</em> Mill.)

Seasonal carbohydrate variation was evaluated in leaves and inflorescences of the ‘Colín V-33’ avocado at Coatepec Harinas, México. The aim of this work was to determine if this variation affects the retention of avocado flowers and fruits. The content of reducing and total sugars and starch, and specific weight were determined for leaves (north and south sides of the canopy). Soluble sugars were determined in the inflorescences (apical and basal parts) in autumn and winter. Carbohydrates in the leaves varied in relation to the main phenological stages and leaf age. In September the highest content of sugars and starch was registred. During the autumn and winter the carbohydrate content in blossoms was lower. Reducing sugars were 28% higher in leaves of the south side. Specific weight showed almost no change in relation to phenology, but it varied with leaf age. Inflorescences showed more sugar content than leaves, and their apical part had higher total sugar content. The autumn inflorescences showed higher total sugar content, while the winter inflorescences had 50% more reducing sugars.

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Revista Chapingo Serie Ciencias Forestales y del Ambiente es publicada bajo una Licencia Creative Commons Atribución-NoComercial-SinDerivadas 4.0 Internacional.

Electronic ISSN: 2007-4034
Print ISSN: 1027-152X

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