Articles
THE EFFECT OF TEMPERATURE, HUMIDITY AND CARBON DIOXIDE ENRICHMENT IN RAISING CUCUMBERS (CUCUMIS SATIVUS) SEEDLINGS
Article number
303_14
Pages
105 – 112
Language
Abstract
The effect of two temperature regimes 22/16 °C and 25/19 °C day night combined with two humidity levels, 0.3 KPa and 1.0 KPa vapor pressure deficit (VPD), and the injection of carbon dioxide when outside prevailing temperatures allowed (due to the need for ventilation) were studied for the production of cucumber seedlings.
For all parameters recorded it was found that the combination of 25/19 °C with 0.3 KPa VPD (high humidity) resulted in the highest rate of growth.
It is therefore concluded that for maximum growth, high temperature must be accompanied by high relative humidity and this combination allows higher rates of carbon dioxide injection.
This is a situation of particular importance to the Mediterranean regions where cucumber seedlings are produced early in the autumn (a period of high temperature but low humidity) for winter crop production.
For all parameters recorded it was found that the combination of 25/19 °C with 0.3 KPa VPD (high humidity) resulted in the highest rate of growth.
It is therefore concluded that for maximum growth, high temperature must be accompanied by high relative humidity and this combination allows higher rates of carbon dioxide injection.
This is a situation of particular importance to the Mediterranean regions where cucumber seedlings are produced early in the autumn (a period of high temperature but low humidity) for winter crop production.
Publication
Authors
C.M. Olympios, J.J. Hanan
Keywords
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