WHEAT YIELD PREDICTION USING AGRO METEOROLOGICAL INDICES FOR SOME REGIONS OF THE WESTERN OF THE COUNTRY

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KAMALI GH.A.; BAZIGAR S.

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Journal: Journal of Agricultural Sciences and Natural Resources Year:2008 | Volume:15 | Issue:2 Page(s): 113-121

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Information Journal Paper

Title

WHEAT YIELD PREDICTION USING AGRO METEOROLOGICAL INDICES FOR SOME REGIONS OF THE WESTERN OF THE COUNTRY

Author(s)

KAMALI GH.A. | BAZIGAR S. | Issue Writer Certificate

Keywords

WHEAT YIELD PREDICTIONQ3

AGROMETEOROLOGICAL INDICESQ3

STATISTICAL MODELSQ2

Abstract

Yield prediction before harvesting is one of the tools in order to make a plan for food production supply in future. WHEAT YIELD PREDICTION was carried out using different meteorological variables as well as agro meteorological indices in some regions in the western of the country including Sanandaj, Ghorveh, Bijar, Kermanshah and Kangavar for the years 2004-05 & 2005-06. On the basis of the highest correlation coefficients, the lowest standard error of estimate and relative deviation of predicted yield from actual yield using different STATISTICAL MODELS, the best subset of agro meteorological indices were selected including daily minimum temperature, accumulated difference of maximum & minimum temperatures, accumulated photothermal units, sunshine hours, growing degree-days, total rainfall and accumulated heliothermal units. The results revealed that in Sanandaj district yield prediction was done using data related to second active vegetative stage of wheat (from 26th of March to 20th of May), for Ghorveh at reproductive stage (from 21st May to 19th of June), for Kermanshah at reproductive stage (from 30th April to 25th of May) and for Kangavar at second active vegetative stage (from 14th of March to 9th of May). In Bijar due to high values of relative deviation none of the models was used. The result showed that in Sanandaj and Ghorveh 68%, Kermanshah 91% and Kangavar 81% of wheat yield variability was accounted for variations in above agro meteorological indices.

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APA: Copy

KAMALI, GH.A., & BAZIGAR, S.. (2008). WHEAT YIELD PREDICTION USING AGRO METEOROLOGICAL INDICES FOR SOME REGIONS OF THE WESTERN OF THE COUNTRY. JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES, 15(2), 113-121. SID. https://sid.ir/paper/9639/en

Vancouver: Copy

KAMALI GH.A., BAZIGAR S.. WHEAT YIELD PREDICTION USING AGRO METEOROLOGICAL INDICES FOR SOME REGIONS OF THE WESTERN OF THE COUNTRY. JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES[Internet]. 2008;15(2):113-121. Available from: https://sid.ir/paper/9639/en

IEEE: Copy

GH.A. KAMALI, and S. BAZIGAR, “WHEAT YIELD PREDICTION USING AGRO METEOROLOGICAL INDICES FOR SOME REGIONS OF THE WESTERN OF THE COUNTRY,” JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES, vol. 15, no. 2, pp. 113–121, 2008, [Online]. Available: https://sid.ir/paper/9639/en

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