Producción de brotes en pitahaya (Hylocereus sp.) cultivada en Guanacaste, Costa Rica: relación con variables climáticas
Fecha
2022-07-07
Autores
Monge Pérez, José Eladio
Loría Coto, Michelle
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Resumen
El objetivo fue evaluar la relación entre la producción de brotes en pitahaya (Hylocereus sp.) y las variables climáticas. El ensayo se realizó en Santa Cruz, Guanacaste, Costa Rica, de enero 2017 a noviembre 2019. Las variables evaluadas fueron: número de brotes vegetativos (NBV), número de brotes reproductivos (NBR), precipitación pluvial (P, en mm), humedad relativa (HR, en %), temperatura promedio (Tp, en °C), temperatura máxima (Tmáx, en °C), temperatura mínima (Tmín, en °C), velocidad del viento (VV, en m/s); y radiación global (RG, en MJ/m2). Se obtuvieron las correlaciones de Spearman entre todas las variables, excepto NBR. NBV no obtuvo correlaciones significativas con ninguna de las otras variables; sin embargo, sí se obtuvieron correlaciones significativas de NBV con las variables climáticas que se presentaron en meses previos a la brotación. La producción de brotes vegetativos no presentó un patrón definido a lo largo del período evaluado, mientras que la producción de brotes reproductivos ocurrió únicamente en el año 2019, en la etapa inicial de la temporada lluviosa. En el momento de la producción de brotes reproductivos, las plantas no mostraron producción de brotes vegetativos.
The objective was to evaluate the relationship between sprout production in pitahaya (Hylocereus sp.) and climatic variables. The trial was conducted in Santa Cruz, Guanacaste, Costa Rica, from January 2017 to November 2019. Tested variables were: number of vegetative sprouts (NVS), number of reproductive sprouts (NRS), rainfall (R, in mm), relative humidity (RH, in %), average temperature (Ta, in ° C), maximum temperature (Tmax, in ° C), minimum temperature (Tmin, in °C), wind speed (WS, in m/s), and global radiation (GR, in MJ/m2). Spearman correlations were calculated among all variables, except NRS. NVS did not show significant correlations with any of the other variables; nevertheless, significant correlations of NVS were obtained with the climatic variables that occurred in the months prior to sprouting. The production of vegetative sprouts did not present a defined pattern throughout the evaluated period, while the production of reproductive sprouts occurred only in 2019, in the early stage of the rainy season. At the time of production of reproductive sprouts, the plants did not show production of vegetative sprouts.
The objective was to evaluate the relationship between sprout production in pitahaya (Hylocereus sp.) and climatic variables. The trial was conducted in Santa Cruz, Guanacaste, Costa Rica, from January 2017 to November 2019. Tested variables were: number of vegetative sprouts (NVS), number of reproductive sprouts (NRS), rainfall (R, in mm), relative humidity (RH, in %), average temperature (Ta, in ° C), maximum temperature (Tmax, in ° C), minimum temperature (Tmin, in °C), wind speed (WS, in m/s), and global radiation (GR, in MJ/m2). Spearman correlations were calculated among all variables, except NRS. NVS did not show significant correlations with any of the other variables; nevertheless, significant correlations of NVS were obtained with the climatic variables that occurred in the months prior to sprouting. The production of vegetative sprouts did not present a defined pattern throughout the evaluated period, while the production of reproductive sprouts occurred only in 2019, in the early stage of the rainy season. At the time of production of reproductive sprouts, the plants did not show production of vegetative sprouts.
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Palabras clave
Fenología, Clima, Precipitación pluvial, Temperatura, Humedad relativa, Phenology, Climate, Rainfall, Temperature, Relative humidity
Citación
https://revistas.ucr.ac.cr/index.php/intersedes/article/view/49597/51744