Abstract
The aim of the study is to evaluate the effect of the height of the greenhouse on climatic conditions generated on a mint crop (Mentha spicata). The tests were conducted in the town of Carmen de Viboral, 40 minutes away from the city of Medellin (6º 05’ 09” N and 75º 20’ 19” W, 2150 m.a.s.l.). Three greenhouses with the same dimensions were used, changing only the gutter height in 2 m, 2,5 m and 3 m respectively. Temperature and relative humidity measurements were taken every 30 minutes for 3 years, time during which crop production was assessed. Statistical analyses were performed to determine climatic variations caused by the difference in height between the greenhouses, and to determine differences in production levels. The results indicate that, under the study conditions, the greenhouse height directly affects the weather conditions and the mint crop yields.
Highlights
Changes in the environment exert different pressures on plants and influence the development of each species, resulting in various forms of growth, which should be interpreted as different paths the plants have followed to adapt to a particular environment (Sherry et al, 2007)
A production monitoring and data collection of temperature and relative humidity was performed in the three greenhouses, and measurements in the outside of the greenhouses were taken for reference over a period of three years starting on January 5, 2012
For a confidence level of 95 %, it is concluded that by reducing the minimum height channel from 3 m to 2 m, there is a difference in the microclimate of the greenhouse in the study
Summary
Changes in the environment exert different pressures on plants and influence the development of each species, resulting in various forms of growth, which should be interpreted as different paths the plants have followed to adapt to a particular environment (Sherry et al, 2007). The biological life cycle changes with the genotype and climatic factors, meaning that plants from the same genotype planted under different weather conditions may have different development stages after the expiry of the same chronological time. Biological events are used as indicators of the presence or absence of certain environmental factors to draw certain conclusions or make predictions about plant responses (Dahlgren et al, 2007). Effect of the height of the greenhouse on the plant - climate relationship as a development parameter in mint (Mentha Spicata) crops in Colombia.
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