Volume 1, Number 1 (2-2013)                   DEEJ 2013, 1(1): 1-10 | Back to browse issues page

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Drought is one of most important factors in desert ecosystems that affect plant growth. In this
study some of drought parameters in Calligonumpolygonoideswere studied under control and
irrigated conditions in natural condition. Results showed significant differences in water
potential between control and irrigated conditions. Proline content in control with the
amounts of 3.1 mg /gfw was significantly higher than irrigated conditions. The highest
amount of soluble sugar also found in the controls. These results showed Irrigation
significantly decreased water potential (more positive), proline and total soluble sugar in
Calligonumpolygonoides. The amounts of K+ were significantly higher than Na. There are
not significant differences in relative water contentbetween stands and in average it was
about 32 percent. It is concluded that this speciesadapted to its own habitat and by
accumulationof proline, K+ and total soluble sugars regulatesits osmotic potential.

Type of Study: Research | Subject: Special
Received: 2012/03/10 | Accepted: 2012/05/22 | Published: 2013/02/3

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