{"title":"Wheat Yield Prediction through Agro Meteorological Indices for Ardebil District","authors":"Fariba Esfandiary, Ghafoor Aghaie, Ali Dolati Mehr","volume":25,"journal":"International Journal of Agricultural and Biosystems Engineering","pagesStart":18,"pagesEnd":22,"ISSN":"1307-6892","URL":"https:\/\/publications.waset.org\/pdf\/5877","abstract":"
Wheat prediction was carried out using different meteorological variables together with agro meteorological indices in Ardebil district for the years 2004-2005 & 2005–2006. On the basis of correlation coefficients, standard error of estimate as well as 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 (Tmin), accumulated difference of maximum & minimum temperatures (TD), growing degree days (GDD), accumulated water vapor pressure deficit (VPD), sunshine hours (SH) & potential evapotranspiration (PET). Yield prediction was done two months in advance before harvesting time which was coincide with commencement of reproductive stage of wheat (5th of June). It revealed that in the final statistical models, 83% of wheat yield variability was accounted for variation in above agro meteorological indices.<\/p>\r\n","references":"[1] Baier, W. (1977). World Meteorological Organization, Rome. Crop-\r\nWeather models and their use in yield assessments. Tech Note. 151. pp:\r\n1-48.\r\n[2] Bazgeer, Saeed. (2005). Land use change analysis in the sub\r\nmountainous region of Punjab using remote sensing, GIS & agro\r\nmeteorological parameters. Ph. D. Dissertation, Punjab Agricultural\r\nUniversity (PAU), Ludhiana, India. pp: 128.\r\n[3] Nuttonson, M. Y. (1955). Wheat climate relationships and use of\r\nphonology in ascertaining the thermal and photo-thermal requirements\r\nof wheat. pp: 54-55. American Institute of Crop Ecology, Washing DC.\r\n[4] Hundal, S. S. Singh, R. and Dhaliwal, L. K. (1997). Agro-climatic\r\nindices for predicting phonology of wheat (Tritium aestivum) in Punjab.\r\nJ. Agric Sci. 67: 265-268.\r\n[5] Sharma, A. Sood, R. K. and Kalubarme, M. H. (2004).\r\nAgrometeorological wheat yield forecast in Himachal Pradesh. J\r\nAgromet 6: 153-160.\r\n[6] Dubey, R. P. Kalubarme, M. H. Jhorar, O. P. and Cheema, S. S. (1987).\r\nWheat yield models and production estimates for Patiala and Ludhiana\r\ndistricts based on Landsat - MSS and Agro meteorological data.\r\nScientific Note. IRS-UP\/SAC\/CPF\/SN\/08\/87. pp 1-34. Space\r\nApplications Center, Ahmadabad.\r\n[7] Reddy, T. Y. and Reddi, G. H. S. (2003). Principles of Agronomy. pp:\r\n48-77. Kalyani Publishers, Ludhiana, India.\r\n[8] Rao, G. S. L. H. V. P. (2003). Agricultural meteorology. pp: 95-112.\r\nDirector of Extension, Kerala Agricultural University, Thrissur, Kerala,\r\nIndia.\r\n[9] Kramer, P. J. (1997) Plant and Soil water Relationships: A Modern\r\nSynthesis. pp: 269-345.Tata McGraw Hill Publishing Company Ltd,\r\nNew Delhi.\r\n[10] Baier, W. and Robertson, G. W. (1967). Estimating yield components of\r\nwheat from calculated soil moisture. Canadian J Plant Sci. 47: 617-630.\r\n[11] Clarke, D.Smith, M. and EL-Askari, K. (1998). Food and Agriculture\r\nOrganization of United Nations, Rome. CropWat for windows package,\r\nversion 4.2.\r\n[12] Doorenbos, J. and Pruitt, W. O. (1975). Food and Agriculture\r\nOrganization of United Nations, Rome. Guidelines for predicting crop\r\nwater requirements. Tech Note 24. pp:124.\r\n[13] Marcellos, H. and Single, W. V. (1972). The influence of cultivar,\r\ntemperature and photoperiod on post-flowering development of wheat.\r\nAustralia J Agric Res. 23: 533-540.\r\n[14] Asana, R. D. and Williams, R. F. (1965). The effect of temperature\r\nstress on grain development in wheat. Aust J Agric Res. 16: 1-13.\r\n[15] Abbate, P. E. Dardanelli, J. L. Cantarero, M. G. Maturano, M. Mechiori,\r\nR. J. M. and Suero, E. E. (2004). Climatic & water availability effects on\r\nwater use efficiency in wheat. Crop Sci. 44: 474-483.\r\n[16] Musick, J. T. Jones, O. R. Stewart, B. and Dusek, D. A. 1994. Wateryield\r\nrelations for irrigated & dry land wheat in the US Southern plains.\r\nArgon J. 86: 980-986.\r\n[17] Mahey, R. K. (1999). Acreage estimation and technique development for\r\nyield prediction through remote sensing. Final technical report. pp: 73-\r\n92.Depth of Agronomy, Punjab Agricultural University, Ludhiana.","publisher":"World Academy of Science, Engineering and Technology","index":"Open Science Index 25, 2009"}