ﺗﺄﺛﻴﺮ ﺗﻐﻴﻴﺮات آبو ﻫﻮاﻳﻲ ﺑﺮ ﻋﻤﻠﻜﺮد ﮔﻨﺪم(T. aestivum L.) آﺑﻲ ﺷﻬﺮﺳﺘﺎنﻫﺎی آﺑﺎده، ﺷﻴﺮاز و ﻻر اﺳﺘﺎن ﻓﺎرس

Abstract
In recent years, primarily temperature and precipitation changes are visible in both global and regional levels in the fact of climate change and the study of its effect on the function of the products, has allocated many researches to himself. Therefor, this study was conducted to examine the effect of the change of the climatic factors on wheat yield in Fars Province. For this purpose, the statistics relating to the function of wheat yield and the meteorogical data including rainfall and temperature was gathered of agricultural organization and aerology organization. To investigate the relationship between the function of wheat yield with climatic indicators and identify the most important climatic parameters affecting, the correlation coefficient and simple linear regression were used for each of the cities Abadeh, Shiraz and Lar. among the meteorological parameters, changes in precipitation for the month April and Spring of Abadeh and in relation to Shiraz for the annual average the function of wheat yield, it has a significant effect and the maximum temperature for the months of April to June and Summer of Lar and for the month of April and Spring of Abadeh and finally the minimum temperature of Spring of Lar have influenced the function of wheat yield. At other times, these variables have no significant effect on wheat yield.