Influence of irrigation method, and drought stress on yield and yield components of potato (case study: Baft county, Kerman province)

Potato (Solanum tuberosum L.) is a highly consumable and important plant. Most geographical locations in Iran are arid and semi-arid regions. Therefore¡ the current research has been conducted in order to investigate the methods of irrigation¡ and drought stress on the yield and yield components of potato in the regions of Baft County¡ Kerman¡ Iran (2014). The main factor¡ and subsidiary factors compared in this study are I1 (furrow irrigation) and I2 (T-tape irrigation)¡ and three drought stress levels; S1 (100% water supply)¡ S2 (75% water supply)¡ and S3 (50% water supply)¡ respectively. The results showed¡ the yield for T-tape irrigation (I2) was higher than the yield for furrow irrigation (I1). Also under different drought stress levels¡ the highest yield was achieved for the S1 treatment with an average of 20.8 tons per hectare toward the S2¡ and S3 treatment with an average of 15.2¡ and 7.9 tons per hectare¡ respectively.