Flowering in Hylocereus spp.: comparative analysis and self-incompatibility

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 the closeness between the date of anthesis in a pitahaya with white pulp and a red one, which would allow for promoting cross-pollination.

Study limitations /implications: Hylocereus spp. is consumed in many parts of the world and has acquired 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. 

Read the complete research at: www.researchagte.net

Megchún-García, Juan Valente & Lid, Ana & Nataren-Velázquez, Jeremías & Villagómez-del-Ángel, Tanith & Ayala-Garay, Alma. (2022). Flowering in Hylocereus spp.: comparative analysis and self-incompatibility. 10.32854/agrop.v15i8.2259.

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