The Effect of Irrigation Cycle on Yield and Yield Components of Zataria multiflora (Case Study: Aliabad Fars)

In order to investigate the effect of changes in irrigation cycle on yield and its components, water use efficiency, economic index of water use efficiency and net income of Zataria multiflora medicinal plant, an experiment in 2016-17 crop year, in randomized complete blocks with four levels of irrigation cycle (4, 8, 12 and 16 days), in three replications, using T-TAPE Irrigation system and was performed in Aliabad Fars region. The results showed that the effect of 8-day irrigation period was significant at 1% level on fresh weight and dry weight of plant, number of lateral branches, amount of active ingredient and harvest index and had no significant effect on plant height. The value of the final production index in relation to the depth of irrigation water for minimum irrigation (17.46 cm) was equal to 180.33 kg per centimeter of water and for maximum irrigation (75.66 cm) was 41.61 kg per cm Water came in handy. Also, in the 8-day treatment (with maximum water consumption efficiency), the values of water consumption economic index and net income were 3 and 1.5 times the executive treatment in the region (4-day cycle), respectively, and according to Stuart model, the amount The sensitivity coefficient of the plant was calculated to be 0.69. Therefore, considering the resistance and yield and capacity of thyme plant to increase the irrigation cycle in the region, the use of 8-day irrigation cycle is recommended in terms of quantity, quality and economy.