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Título : Reproductive biology of mango (Mangifera indica) in a Mediterranean climate
Autor : Pérez Méndez, Verónica; Hormaza Urroz, José Ignacio; Herrero Romero, María
Palabras clave : fruiting
embryo sac
pollen-pistil incompatibility
progamic phase
Fecha de publicación : mar-2015
Editor: International Society for Horticultural Science
Citación : Pérez V, Hormaza JI, Herrero M. Reproductive biology of mango (Mangifera indica) in a Mediterranean climate. Acta Horticulturae 1075: 143-148 (2015)
Resumen: The importance of mango growing contrasts with the paucity of information on its reproductive biology. In this work, the reproductive biology of mango was studied in the subtropical conditions of the Southern Spanish Mediterranean coast, using the cultivars ‘Osteen’, ‘Kensington’, ‘Kent’ and ‘Keitt’. In order to establish the appropriate developmental coordinates during the reproductive phase, phenology was studied from the start of the blooming season to fruit harvest. Also to detect the reasons behind the low fruit set in mango, pollen tube pathway and fertilization were analysed, using microscopy techniques. A good proportion of the flowers were male and dropped soon after anthesis. Pollen grains readily germinated, pollen tubes reached the base of the style within one day, penetrated the ovule through the nucellus and reached the embryo sac three days after pollination. Endosperm nuclei soon developed, but the embryo remained in a quiescent stage. A good proportion of the ovules degenerated at different stages of development. Temperature had an effect on pollen performance, and low temperatures hampered pollen germination. Finally, a compatibility assay was performed, showing no differences between self and cross pollen tube growth in the style. However a paternity analysis, with microsatellite markers, showed significant differences in outcrossing rate depending on the availability of pollinizer trees.
Descripción : 5 Pags. The definitive version is available at: http://www.actahort.org/index.htm
Versión del editor: http://www.actahort.org/books/1075/1075_15.htm
URI : http://hdl.handle.net/10261/116532
ISSN: 0567-7572
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