STUDIES ON THE EFFECTS OF CLIMATIC FACTORS ON DRYLAND WHEAT GRAIN YIELD IN MARAGHEH REGION

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FEIZIASL V.; JAFARZADEH J.; ABDOLRAHMANI B.; MOSAVI S.B.; KARIMI E.

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Journal: Iranian Journal of Field Crops Research Year:2010 | Volume:8 | Issue:1 Page(s): 1-11

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Information Journal Paper

Title

STUDIES ON THE EFFECTS OF CLIMATIC FACTORS ON DRYLAND WHEAT GRAIN YIELD IN MARAGHEH REGION

Author(s)

Keywords

CLIMATIC FACTORSQ2

PATH ANALYSISQ2

STEPWISE REGRESSIONQ2

GRAIN YIELDQ2

RAINFED WHEATQ3

Abstract

In order to study the effects of climate variables on rain fed wheat GRAIN YIELD, climate data and wheat yield for 10 years (1995-2005) collected from Dryland Agricultural Research Institute (DARI) in Maragheh as the main station in cold and semi-cold areas. Collected data were analyzed by correlation coefficient, simple regression, STEPWISE REGRESSION and PATH ANALYSIS. The results showed that relationships between GRAIN YIELD with average relative humidity and total rainfall of growing season was positive and significant at 5% and 1% probabilities, respectively. However, evaluation between GRAIN YIELD with sunny hours and class A pan evaporation was negative and significant (p<0.05). There are two-regression models between GRAIN YIELD and average relative humidity and total cropping years rainfall in simple regression method. In STEPWISE REGRESSION method, only total cropping year’s rainfall parameter had positive and significant relationship at 1% probability with GRAIN YIELD. PATH ANALYSIS results showed that direct effects of average temperature and total cropping year’s rainfall were positive and non-significant on GRAIN YIELD. In addition, indirect effect of class A pan evaporation had affected other climate parameters. It can be concluded that there was relationship between some climate parameters and Sardari dry land wheat GRAIN YIELD. Also the relationships between GRAIN YIELD with average temperature and total cropping year's rainfall was positive but with class A pan evaporation was negative.

Cites

DETERMINATION OF EFFECTIVE PARAMETERS ON CLIMATE PRODUCTION FUNCTIONS FOR RAINFED BARLEY AND SENSITIVE ANALYSIS AT COLD AND SEMI-COLD REGIONS OF LORESTAN PROVINCE

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APA: Copy

FEIZIASL, V., JAFARZADEH, J., ABDOLRAHMANI, B., MOSAVI, S.B., & KARIMI, E.. (2010). STUDIES ON THE EFFECTS OF CLIMATIC FACTORS ON DRYLAND WHEAT GRAIN YIELD IN MARAGHEH REGION. IRANIAN JOURNAL OF FIELD CROPS RESEARCH, 8(1), 1-11. SID. https://sid.ir/paper/118871/en

Vancouver: Copy

FEIZIASL V., JAFARZADEH J., ABDOLRAHMANI B., MOSAVI S.B., KARIMI E.. STUDIES ON THE EFFECTS OF CLIMATIC FACTORS ON DRYLAND WHEAT GRAIN YIELD IN MARAGHEH REGION. IRANIAN JOURNAL OF FIELD CROPS RESEARCH[Internet]. 2010;8(1):1-11. Available from: https://sid.ir/paper/118871/en

IEEE: Copy

V. FEIZIASL, J. JAFARZADEH, B. ABDOLRAHMANI, S.B. MOSAVI, and E. KARIMI, “STUDIES ON THE EFFECTS OF CLIMATIC FACTORS ON DRYLAND WHEAT GRAIN YIELD IN MARAGHEH REGION,” IRANIAN JOURNAL OF FIELD CROPS RESEARCH, vol. 8, no. 1, pp. 1–11, 2010, [Online]. Available: https://sid.ir/paper/118871/en

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