%0 Journal Article %T Effect of water stress on seed germination of Artemisia spicigera & Artemisia fragrans %J Desert %I University of Tehran %Z 2008-0875 %A Azarnivand, H. %A Sourib, M. %A Etemad, V. %D 2007 %\ 06/01/2007 %V 12 %N 1 %P 17-21 %! Effect of water stress on seed germination of Artemisia spicigera & Artemisia fragrans %K water stress %K polyethylene glycol %K germination %K Tigella %K Radicule %R 10.22059/jdesert.2008.31061 %X Physiological effect of five levels of water stress (0,-0.3,-6,-9 and -1.2MP) was studied on seed germination and tigella as well as radicule growth length in two different Artemisia species namely: Artemisia spicigera and Artemisia fragrans. Polyethylene glycol (PEG) was used to provide appropriate water potentials. A total of 50 seeds were sown from each Artemisia species. Experimental design was a factorial one of complete randomized design. Maximum germination rate was obtained at -0.3 MP. Germination rate, and tigella & radicule growth lengths declined with decreasing water potential level. Artemisia spicigera was more resistant to water stress in comparison with Artemisia fragrans. %U https://jdesert.ut.ac.ir/article_31061_ba61c18ee87d7b6c4b37c46873cdf2df.pdf