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Title

THE ANALYSIS OF THE AGRCLIMATOLOGICAL INDICES AND CLIMATIC ELEMENTS EFFECT ON RAINFED WHEAT IN DIFFERENT PHONOLOGICAL STAGES IN KURDISTAN PROVINCE

Pages

  1-17

Abstract

 Rain fed wheat is one of the major agricultural crops in Kurdistan province that includes most of the cultivated area. Agricultural production is affected by risks, resulted from weather and international markets. Although these risks could never completely been removed, we can minimize their effects by realizing the affecting parameters involved in plant growth and crop yield. In this study the impacts of effective AGROCLIMATOLOGICAL INDICES and climatic elements have been identified for each phenophase of RAIN FED WHEAT YIELD in Kurdistan province. For this purpose, RAIN FED WHEAT YIELD data for Kurdistan province, and its counties were obtained from The Ministry of Jahde Agriculture for the period 1991-2006. Moreover, Necessary weather parameters of all the weather stations in Kurdistan province for the period 1991-2006 (1993-2006 for Marivan station) were obtained from Iranian National Meteorological Organization. Correlation and nearest neighboring methods were used for retrieval of the missing data. Then, linear and nonlinear correlations between RAIN FED WHEAT YIELD and 6 AGROCLIMATOLOGICAL INDICES (TD, GDD, HTU, PTU, VPD, PET) and 11 climatic elements (Tmax, Tmin, R, Rday, RH, Tabsmin, Tabsmax, FFmean, FFabsmax, TS, Tmean) in 6 pheneological phase of rain fed wheat growth from sowing to harvest, were extracted. The results of this study show that the effective variables in each phenophase of RAIN FED WHEAT YIELD growth are; temperature in the first phenophase (Early Seedling stage, from October 7 to November 6); precipitation in the second phenophase (the First Stage of Active Vegetative before Dormancy stage, from November 7 to December 11); temperature variations in the third phenophase (Dormancy Stage, from December 12 to March 15); relative humidity and the absolute amount of minimum temperature in the fifth phenophase (Reproductive Stage, from May 11 to June 9); and relative humidity in the sixth phenophase (Maturity Stage, from June 10 to July 10). In the fourth phenophase (the Second Stage of Active Vegetative after dormancy stage, from March 16 to May 10) none of the extracted variables and indices have a significant relation with RAIN FED WHEAT YIELD. This shows that wheat plant obtains necessary climatic elements from previous phenophases and continues its growth in this stage.

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    APA: Copy

    FARAJZADEH ASL, M., KHOORANI, A., BAZGIR, S., & ZIAEIAN, P.. (2012). THE ANALYSIS OF THE AGRCLIMATOLOGICAL INDICES AND CLIMATIC ELEMENTS EFFECT ON RAINFED WHEAT IN DIFFERENT PHONOLOGICAL STAGES IN KURDISTAN PROVINCE. SPATIAL PLANNING (MODARES HUMAN SCIENCES), 15(4 (72)), 1-17. SID. https://sid.ir/paper/171833/en

    Vancouver: Copy

    FARAJZADEH ASL M., KHOORANI A., BAZGIR S., ZIAEIAN P.. THE ANALYSIS OF THE AGRCLIMATOLOGICAL INDICES AND CLIMATIC ELEMENTS EFFECT ON RAINFED WHEAT IN DIFFERENT PHONOLOGICAL STAGES IN KURDISTAN PROVINCE. SPATIAL PLANNING (MODARES HUMAN SCIENCES)[Internet]. 2012;15(4 (72)):1-17. Available from: https://sid.ir/paper/171833/en

    IEEE: Copy

    M. FARAJZADEH ASL, A. KHOORANI, S. BAZGIR, and P. ZIAEIAN, “THE ANALYSIS OF THE AGRCLIMATOLOGICAL INDICES AND CLIMATIC ELEMENTS EFFECT ON RAINFED WHEAT IN DIFFERENT PHONOLOGICAL STAGES IN KURDISTAN PROVINCE,” SPATIAL PLANNING (MODARES HUMAN SCIENCES), vol. 15, no. 4 (72), pp. 1–17, 2012, [Online]. Available: https://sid.ir/paper/171833/en

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