CWEEE  Vol.6 No.3 , July 2017
The Phenological Stages of Apple Tree in the North Eastern of Iran
The main objective of this study was to evaluate the process of parameters such as mean temperature; total precipitation on phenology and phenological stages of apple golden type in Razavi Khorasan. For this reason, long-term data of absolute minimum daily temperature, precipitation, humidity, as well as Digital Elevation Model (DEM) was used. After collecting data on phenology and Growing Degree Days (GDD) for golden apple, to pass each phenological stage at different growth stages, the start and end dates, phenological stages of the locations were identified. Then, regression equations with variable longitude, latitude and altitude on SPSS software at level of 50% and 95%, respectively were used, and finally phenological stages and spatial distribution maps of temperature and precipitation variables based on these equations were drawn in ARC GIS software. The analysis of the phenological stages showed that Torbate Heydarieh station has a decreasing trend which is significant at 1% in all stages of phenology and Ghoochan station does not show any significant increase or decrease trend at all stages of phenology.
Cite this paper: Karami, M. and Asadi, M. (2017) The Phenological Stages of Apple Tree in the North Eastern of Iran. Computational Water, Energy, and Environmental Engineering, 6, 269-280. doi: 10.4236/cweee.2017.63018.

[1]   Parhizkar, A. and Sarmady, A. (2001) Khomeins Plain Capable of Sliding Poll Farmer. Magazine Geographical Space, Azad University of Ahar, No. 3: 40-23.

[2]   Alizadeh, A. and Kouchaki, A. (1989) Agriculture and Climate. Javid Press, 140.

[3]   Maniee, A. (1992) Apple and Its Cultivation. Iranian Technical Publications, 1st Printing.

[4]   Taghi Bakhshi, N. (2005) The Effect of Climate on the Production and Cultivation of Apple Tree in the City of Damavand. Tarbiat Modarres University, Tehran.

[5]   Quanta (1975) Guidebook to the Needs and Limitations of Meteorology for 15 Iranian Main Products, Agricultural Meteorology.

[6]   Ehtemam, M.H. and Khandan, A. (2003) Modified Apple Trees and in Horticultural Plant Breeding. Mashhad, Astan Ghods Razavi Publications.

[7]   Kamali, Gh.A. and Bazgir, S. (2008) Wheat Yield Estimation Base on Agricultural Meteorology Indices in Some Areas of the Western Part of the Country. Journal of Agricultural Sciences and Natural Resources, XV, 122-113.

[8]   Hejazizadeh, Z. and Parvin, N. (2010) Assessment of Changes in Temperature and Precipitation in Tehran during the Past Half Century. Geography and Regional Planning, 43-56.

[9]   Chambers, F. and Ogle, M. (2002) Climate Change, Vole. 1, London, Rout1, Ledge.

[10]   Chambers, F. and Ogle, M. (2002) Climate Change, Vole. 2, London, Rout, Ledge.

[11]   Azizi, Gh. (2000) Estimates of Effective Rainfall in Relation to the Cultivation of Wheat (Case Study: Plain Khorramabad). Geographic Studies, No. 39, 123-115.

[12]   Azizi, Gh. and Yarmohamady, D. (2003) The Relationship between Climatic Parameters and Yield of Wheat with Regression Model, Geographic Preceding Studies, 44.