Revista 30 - 1

Published

2010-01-01

The effect of applying different water levels and irrigation frequencies in propagating rosemary (Rosmarinus officinalis L.)

Efecto de la aplicación de diversas láminas y frecuencias de riego en la propagación del romero (Rosmarinus officinalis L.)

DOI:

https://doi.org/10.15446/ing.investig.v30n1.15213

Keywords:

sphagnum, evaporation, evapotranspiration, relative water content (en)
turba, evaporación, evapotranspiración, contenido relativo de agua (es)

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Authors

  • Javier Giovanni Álvarez Herrera Universidad Pedagógica y Tecnológica de Colombia
  • Helber Enrique Balaguera López Universidad Nacional de Colombia
  • Edinson Chacón Pardo Universidad Nacional de Colombia

Rosemary seedlings are obtained by vegetative propagation because the seeds present low viability. Despite being an expanding crop, there is little information on water consumption during the propagation stage. Water levels and irrigation frequencies were therefore applied using a completely randomised design having a 4 x 2 factorial arrangement. The first factor concerned irrigation frequency (4 and 8 days) and the second concerned water level (0.6, 0.8, 1.0 and 1.2 evaporation inside the greenhouse). A 1.0 coefficient combined with 4-day irrigation frequency presented the best results regarding height (39.3 cm), fresh weight, dry weight and branch length (146 cm). Water level affected the fresh and dry weight of leaves regardless of frequency. Relative water content in leaves did not present differences due to environmental conditions minimising treatment effect. Rooting percenttage showed no significant differences regarding irrigation frequency or water level. Irrigation frequency did not affect rosemary growing pattern because sphagnum retains high moisture content. The best branch number (34) was obtained with 1.0 coefficient and 4-day frequency, this being important from the production point of view because this is the material which is sold. Water management changes photoassimilate distribution in rosemary plants.

La obtención de plántulas de romero se limita a la propagación vegetativa, pues las semillas presentan poca viabilidad. Pese a ser un cultivo en expansión, existe poca información sobre el consumo de agua en la etapa de propagación. Por lo tanto, se aplicaron láminas y frecuencias de riego utilizando un diseño completamente al azar con arreglo factorial 4 x 2. El primer factor fue la frecuencia de riego (4 y 8 días), y el segundo la lámina de riego (0,6; 0,8; 1,0 y 1,2 de la evaporación dentro del invernadero). El coeficiente de 1,0 combinado con la frecuencia de riego de 4 días presentó los mejores resultados en la altura (39,3 cm), masa fresca, masa seca y longitud total de ramas (146 cm). La lámina de riego afectó la masa fresca y seca de las hojas independientemente de la frecuencia. El contenido relativo de agua en las hojas no mostró diferencias debido a que las condiciones ambientales minimizan el efecto de los tratamientos. El porcentaje de enraizamiento no determinó diferencias significativas para frecuencia ni para lámina; la frecuencia de riego afectó el comportamiento del romero debido a que la turba retiene gran contenido de humedad. Con un coeficiente de 1,0 y una frecuencia de riego de cuatro días, se obtuvo un mayor número de ramas (34), lo cual es importante desde el punto de vista productivo, pues éste es el material que se comercializa. El manejo del agua cambia la distribución de los fotoasimilados en la planta de romero.

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The effect of applying different water levels and irrigation frequencies in propagating rosemary (Rosmarinus officinalis L.). (2010). Ingeniería E Investigación, 30(1), 86-90. https://doi.org/10.15446/ing.investig.v30n1.15213
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Copyright (c) 2010 Javier Giovanni Álvarez Herrera, Helber Enrique Balaguera López, Edinson Chacón Pardo

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