Effect of foliar methanol application and availlible water on water use efficiency and some characteristic of sugar beet

Effect of foliar methanol application and availlible water on water use efficiency and some characteristic of sugar beet a experiment was conducted in 2010 at mahdasht(Karaj,Iran). Aqueous solutions 0(control,14 and 28%(v/v) methanol and each solution contained 0.2% glycine used as the levels of first factor. The second factor was drought stress(irrigation after 70% deleption of available water)and normal irrigation(irrigation after 40% deleption of available water).Parameters of this study consisted of: root yield, white sugar yield, total drought weight(TDW), harvest index(HI), water use efficiency(WUE), total water use efficiency(TWUE). Analysis of variance indicated that there was significant differences between solutions on some measured parameters such as: root yield, white sugar yield, TDW, HI, WUE and TWUE with control. Results showed that solution of 14% methanol has the most root yield, white sugar yield arrangementally with 73.96 and 8.05 ton/hectare.Thus foliar 14% methanol application has the most WUE and TWUE in comparison with control. There was significant differences between drought stress and normal irrigation in following parameters: root yield white sugar yield, white sugar content. Normal irrigation had higher in comparison with drought stress. Parameters of growth in normal irrigation was better than drought stress.