Relationship between temperature and relative humidity with the outbreak of the fungus Fusarium oxysporum f. sp. vanillae
DOI:
https://doi.org/10.29312/remexca.v8i3.44Keywords:
Fusarium oxysporum, diseases, greenhouse, monitoring, shadow house, rot, vanillaAbstract
The objective of this paper is to determine the behavior of temperature (T) and relative humidity (RH) in different areas of a vanilla shade house and its relation with the outbreak of Fusarium oxysporum f. sp. vanillae (FOV). The shadow house is located in Gutiérrez Zamora, Veracruz. The behavior of T and RH from 2010 to 2014 was analyzed. Based on the monthly precipitation level, periods of the year that could favor FOV outbreaks were defined. The analysis was based on a set of rules constructed with information reported in the literature, which determine the ranges of T and RH that favor FOV outbreaks. The results showed that there are relevant relationships between the behavior of T and RH, the different areas of the shadow house and the FOV outbreaks during certain periods of the year. Two of four zones coincided with ranges of T and RH that favored FOV outbreaks. It is concluded that due to the orientation of the shadow house with respect to the path of the sun and the fact of being installed between two hills, the behavior of T and RH in certain areas of the shadow house favored the outbreak of FOV. In order to improve control of FOV outbreaks, it is proposed to use T and RH behavior monitoring systems in different areas of the shadow house.
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