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The potential of rooftop PV for prosumer energy provision globally
Zhang Z +4 more
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An integral model to calculate the growing degree-days and heat units, a spreadsheet application
Computers and Electronics in Agriculture, 2016An integral model was developed to compute the growing degree-days easily and rapidly.The model was applied to about 12,000 meteorological stations worldwide.The developed model was found to have excellent fit with the original method.The model is available for all readers as two module-free excel workbooks (attached). The concept of heat units is used
Mohammad Nabil Elnesr
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Trends of Growing Degree-Days in Turkey
Water, Air, and Soil Pollution, 2001Variations in the surface air temperatures show an associationwith the atmospheric CO2 under the hypothesis that warmertemperatures promote increases in plant growth in mid-northernlatitudes. Historical daily temperature records at seventy-fourweather stations (around 60-yr) in Turkey are used in orderto investigate this hypothesis.
Mikdat Kadioğlu, Levent Şaylan
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The growing degree-day and fish size-at-age: the overlooked metric
Canadian Journal of Fisheries and Aquatic Sciences, 2007Growth rate in ectotherms, including most fish, is a function of temperature. For decades, agriculturalists (270+ years) and entomologists (45+ years) have recognized the thermal integral, known as the growing degree-day (GDD, °C·day), to be a reliable predictor of growth and development.
Neuheimer, Anna Beatrice, Taggart, C.T.
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PREDICTING FLOWERING OF APRICOT CULTIVARS USING GROWING DEGREE DAYS
Acta Horticulturae, 2012Heat requirement for flowering in apricot cultivars was estimated from field data using Growing Degree Days method (GDD). Ten years of phenological and temperature data for 42 apricot cultivars of diverse geographical origin and different flowering time, grown in Belgrade region, were used to conduct the study. Base temperatures for different cultivars
Ruml, Mirjana +2 more
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Theoretical and Applied Climatology, 2012
The growth and development of crops is commonly regarded as a function of time alone. However, this approach can be inadequate due to temperatures which vary from year to year caused by global climate change. This prompted the development of the growing degree day concept, which incorporates information on both the passage of time and the temperature ...
Lijun Su, Quanjiu Wang, Yungang Bai
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The growth and development of crops is commonly regarded as a function of time alone. However, this approach can be inadequate due to temperatures which vary from year to year caused by global climate change. This prompted the development of the growing degree day concept, which incorporates information on both the passage of time and the temperature ...
Lijun Su, Quanjiu Wang, Yungang Bai
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Growing Degree Days to Forecast Crop Stages
2017Plant development depends on temperature. Plants require a specific amount of heat to develop from one point in their life-cycle to another. The ability to predict a specific crop stage, relative to insect and weed cycles, permits better management.
Latief Ahmad +3 more
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Morphological Development of Alfalfa as a function of Growing Degree Days
Journal of Production Agriculture, 1994Growing degree days (GDD, base = 41 °F) may be useful for estimating alfalfa (Medicago sativa L.) morphological development (mean stage by weight, MSW) as a forage management tool. Our objective was to quantify the relationship between MSW and GDD of alfalfa in several environments and years.
Matt A. Sanderson +2 more
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DETERMINATION OF A SUITABLE FORMULA FOR THE CALCULATION OF SUM GROWING DEGREE DAYS IN CUCUMBER
Acta Horticulturae, 1999This study was conducted to determine the most suitable formula to calculate Sum Growing Degree Days (SGDD) in Cucumber for the periods between sowing and emergence, emergence and anthesis, anthesis and maturation, sowing and first harvest periods. In a two year trial, six cultivars were grown, starting from different sowing dates, and 96 equations ...
Akinci S., Abak K.
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Growing degree-days for the ‘Niagara Rosada’ grapevine pruned in different seasons
International Journal of Biometeorology, 2011Plant growth and development are proportional to biological time, or the thermal time of the species, which can be defined as the integral of the temperature over time between the lower and upper temperature developmental thresholds. The objective of this study was to investigate the efficiency of the growing degree-day (GDD) approach for vines of the '
Fábio Vale, Scarpare +4 more
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