Se colectaron 38 muestras de miel de Apis mellifera L. en seis municipios, pertenecientes a las cinco subregiones del estado de Tabasco, se realizó el análisis melisopalinologico obteniendo 37 tipos polínicos de importancia (>10%). Bursera simaruba L. (Burseraceae), Spondiasmombin (Anacardiaceae), Diphysa sp. (Fabaceae), Erythrina sp., (Fabaceae), Mimosa orthocarpa (Fabaceae), Pipersp1, sp2, sp3 (Piperaceae), Machaerium sp., (Fabaceae), Cecropia obtussifolia (Moraceae), Psidium guajava (Myrtaceae), Acalypha sp., (Euphorbiaceae), Celtis sp., (Ulmaceae), Heliocarpus appendiculatus (Tiliaceae), Conocarpus sp., (Combretaceae), Haematoxy lumcampechianum (Fabaceae), Mimosa albida (Fabaceae), Zea mays L. (Gramineae), Diphysacarthagenensis (Fabaceae), Quercus sp., (Fagaceae), Citrus sp., (Rutaceae), Cocos nucifera (Arecaceae), Mimosa sp., (Fabaceae), Mimosa pigra var. Berlandieri (Fabaceae), Eleocharis sp., (Cyperaceae), Rumex sp., (Polygonaceae), Eragrostis sp., (Poaceae), Spondiasradlkoferi (Anacardiaceae), Muntingiacalabura (Elaeocarpaceae), Asteraceae sp1, (Asteraceae), Borreriaverticillata (Rubiaceae), Coccolobaaff. Diversifolia (Polygonaceae), Quercusoleoides (Fagaceae). En general se clasificaron 22 muestras de miel multifloral, 9 monof loral y 7 bif loral. Y al realizar el ACP, se obtuvieron dos componentes que explican 65% de la variación total, mostrando que Cárdenas y Huimanguillo tienen afinidad por Bursera simaruba L. (Burseraceae) y Cecropiaobtussifolia (Moraceae), en cambio Centro, Tacotalpa y Balancán comparten preferencia por Mimosa albida (Fabaceae), Psidiumguajava (Myrtaceae) y Rumex sp. (Polygonaceae) y Centla en cambio mostró una clara diferencia con los 5 municipios restantes.

Some oil palm production zones have periods of low rainfall, eliciting to water stress and impacting yields. The objective of this study was to evaluate the effect of the supplementary irrigation application during the dry season, on the water use and the transpiration of oil palm trees, and on morphological changes that occur during the different phenological stages. The monitored site was an oil palm plantation in Jalapa, Tabasco, Mexico (17° 38 N; 92° 56 W; altitude 20 m). There, the plant density is 143 palms ha−1. Two areas of palm trees with ages of 6 and 11 years were located. The soil type was classified as Gleysol. A weather station was placed in a pasture adjacent (1 km) to the plantation. The variables, evaluated from April 1 to June 23, 2017, included the structural characteristics of the plantation, sap flow, transpiration, and the morphological changes at the different phenological stages, which were assessed based on the BBCH scale. The results showed that the water use per palm tree (102–140 kg day−1) and the transpiration (1.59–2.11 mm day−1) were not significantly different among palm trees ages. The application of irrigation during the dry season maintained transpiration in palms of both ages and favoured inflorescence development and fruit formation by shortening the number of days it took the palm plants to reach fruit formation stage (stages 503-700), but increased the number of days required by the bunches to reach maturation (stages 709 to harvest). This study conducted during few months needs to be confirmed by longer term monitoring.

No abstract