Climatic parameters rules on barberry phonology stages in Gonabad

climate is one of the most important parameters in agricultural products and it limits the amount of products . it is obvious that agriculture is in a great relation with surrounding environment and it is affected by the climate ,so climatic parameters in a long period can determine plantation algorithm and dispersion explanation of different kinds of plants . the main aim of this research is assessment of the procedure of changing in agriclimatic parameters which effects on barberry growth in Gonabad city. for this purpose we use daily information such as minimum and maximum temperature, raining, average temperature, proportional moisture, soil temperature, sunny hours, and average temperature , proportional moisture and soil temperature in the finishing day of phonology stages in Gonabad synoptic station of khorasan razavi province , and by using them climatic parameters volume in different probable levels are calculated . in next step Man Kendal test used to explore climatic elements procedure in different phonology levels of barberry product . results indicates that , between all climatic parameters which effect on barberry plantation The average temperature, soil temperature and sunshine hours speed have decreased in 5 percent level.