Evaluation of yield in some seed potato cultivars grown in high and low altitude regions

This research was conducted at two locations (in two farms including a highland region of Chahar-Mahal va Bakhtiari and a lowland in Alborz region) in 2010. Ten potato cultivars were planted based on randomized complete block design (RCB) with 4 replications. The results of simple variance analysis of data in the both places showed significant difference between cultivars in potato yield, emergence percentage and tuber dry matter. The results of variance analysis shoed a significant difference between varieties in tuber dry matter, tuber yield and emergence percentage in both Chahar-mahal va Bakhtiari and Alborz area. According to the results of comparison of means in Chahar-Mahal va bakhtiari area, varieties of Oceania and Spirit, Agria, Burren and Savalan were the highest in potato tuber yield while variety of Marfona was the lowest of this trait. Also the results in site of Alborz, varieties of Oceania, Banba, Agria, Marfona and Savalan were the highest in potato tuber yield.