Authors : M. Taghvaei and M. Ghaedi
Abstract: Haloxylon aphyllum L. is a an important perennial plant for conservation in Asian, especially Iran dune desert. The effects of water potential on germination and recovery responses after transfer to distilled water and osmotic potential were studied in Haloxylon aphyllum L. seeds collected from Fars (neirize) dune desert located in the elevations of 1632 m.a.s. in center of Iran in Asian desert. Treatments included 2 pretreatment levels (0, -1.2 MPa) and 6 levels of polyethylene glycol PEG (6000) potentials (0, -0.3, -0.6, -0.9, -1.2, -1.5 MPa), using a completely randomized block design. Result showed that osmotic potential had a significant effects on germination percentage, germination rate, seedling length and seedling dry weight. Total of them decreased with increased osmotic potential. Recovery of seed increased of seedling characteristics after being transferred to distilled water and osmotics potential. As prime witht Poly Etilen Glycol (PEG) concentration increased threshold to osmotic potential.
M. Taghvaei and M. Ghaedi, 2014. The Effect of Osmotic Conditions on Germination of (Haloxylon aphyllum L.) Seeds and Recovery Under Water Stress. Agricultural Journal, 9: 167-172.