Investigating of Phenological Stages of Camelthorn (Alhaji pseudoalhagi L.) in Yazd Province

In order to evaluate the phenology stages of Camelthorn (Alhagi pseudoalhagi), an experiment was carried out in 2008 in two cities, of Yazd province Yazd and Taft (Cham), in spring. By growing camelthorn, the phenology stages in both areas, from emergence time to seeding, were recorded. The results showed that 7 phenology stages of the Camelthorn took 211 days (equal to 4049 growing degree days) in Yazd, while The same Stage decreased 200 days (equal to 3503.45 growing degree days), in Cham-Taft. The shortest and the lorgest Phenology period of Camelthorn in both yazd and Cham-Taft referes to budding (22 days) and seeding (90 days), respectively. Also, the shortest distance in terms of time from starting of one stage to the next in both sites, was due to the starting growth period of Camelthorn from surface to appearance of first stem, and the longest distance in terms of time refered to starting of fruiting and seeding.