Flowering in Hylocereus spp.: comparative analysis and self-incompatibility
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Del Ángel-Pérez, Ana Lid [2] ; Nataren-Velázquez, Jeremías [2] ; Megchún-García, Juan Valente [3] ; Villagómez-del-Ángel, Tanith E [1] ; Ayala-Garay, Alma V. [4]
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[1] Universidad Veracruzana
Universidad Veracruzana
México
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[2] INIFAP, Campo Experimental Cotaxtla.
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[3] Tecnológico Nacional de México/Instituto Tecnológico Superior de Jesús Carranza. Jesús.
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[4] INIFAP, Campo Experimental del Valle de México.
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- Localización: Agro Productividad, ISSN-e 2594-0252, Vol. 15, Nº. 8, 2022 (Ejemplar dedicado a: Agosto), págs. 125-135
- Idioma: inglés
- Enlaces
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Resumen
Objective: To know the variables of the reproductive component of materials for manual cross-pollination purposes, for which the search for sexual synchrony is emphasized.
Design/methodology/approach: Four materials were analyzed, two with white pulp and two with red pulp, about which it is unknown if they present sexual self-incompatibility, and the synchrony in flowering is also unknown. The flowering phase and the variables that can shed light on its reproductive behavior were analyzed Results: It was found that the red materials present strong hercogamy, they cannot self-fertilize. There is also no floral synchrony, but there is closeness between the date of anthesis in a pitahaya with white pulp and a red one, which would allow promoting cross-pollination.
Study limitations /implications: Hylocereus spp. is consumed in a large part of the world and has acquired a very strong importance since the industrial demand is increasing; however, several of the genotypes used in commercial production in Mexico show low fruit set compared to high floral emission, which is considered self-incompatibility.
Findings/conclusions: The presence of hercogamy, stronger in the red-fleshed materials, indicates the existence of sexual self-incompatibility, explaining the fact that the materials emit a large number of flowers, but do not achieve fruit setting.
