The determination and significance of the base temperature for calculating growing degree days
DOI:
https://doi.org/10.14720/aas.2001.77.2.15728Keywords:
agrometeorology, base temperature, growing degree daysAbstract
The purpose of this paper is to describe of determining the base temperature, explore its significance as a source of error in heat unit system and determine the base temperature for some plants in Slovenia. Methods which have been proposed for the determination of the base temperature are: 1. Least standard deviation in growing degree days, 2. Least standard deviation in number of days, 3. The smallest coefficient of variation in number of days, 4. Regression coefficient method, 5. Method of development rate. With method 1 base temperatures were calculated for leaf unfolding (beech, birch, horse-chestnut, linden, spruce) and flowering (dandelion, crocus, snowdrop, orchardgrass, willow, hazel, elder, lilac, acacia, linden, plum tree) for seven locations in Slovenia. It is apparent that there is variation in base temperature for different locations.
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Copyright (c) 2001 University of Ljubljana, Biotechnical Faculty
This work is licensed under a Creative Commons Attribution 4.0 International License.
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