Investigation of determination of the optimal irrigation interval on yield and yield components of sesame in Sesame field region of Iran using class A evaporation pan

In order to setting the time of irrigation of the sesame plant using a evaporation pan, an experiment was conducted for two years and three replications in the major cultivations of country (Bushehr, Darab and Jiroft) Irrigation treatments were I0 (irrigation based on conventional harvest), I1 (Irrigation interval based on 90 mm cumulative evaporation from class A evaporation pan), I2 (Irrigation interval based on 120 mm cumulative evaporation from class A evaporation pan class A evaporation pan), I3 (Irrigation interval based on 150 mm cumulative evaporation from class A evaporation pan), I4 (Irrigation interval based on 180 mm cumulative evaporation from class A evaporation pan), I5 (Irrigation interval based on 90 mm cumulative evaporation from class A evaporation pan until beginning of flowering and 180 mm cumulative evaporation from class A evaporation pan after flowering) And I6 (Irrigation intervals based on 180 mm cumulative evaporation from class A evaporation pan until beginning of flowering and 90 mm cumulative evaporation from class A evaporation pan class A evaporation pan class A evaporation pan after flowering).The results showed that Sesame did not have much susceptibility to water stress before flowering.at all points of the project and can be set the Irrigation intervals based on 180 mm cumulative evaporation from class A evaporation pan (about 12 days) But this irrigation program at the beginning of the flowering Reduces performance significantly And Irrigation should be ased on 90 mm cumulative evaporation from class A evaporation pan (approximately 7 days)