Effects of different soil moisture regimes on some physiological characteristics of two eucalypts (E. microtheca and E. sargentii)

Document Type : Research Paper

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    Introduction of drought-resistant species of Eucalyptus for planting in arid and semi-arid areas of Iran for silviculture and landscaping is emphasized. In order to determine the effects of different soil moisture regimes on physiological characteristics of E.microtheca and. E. sargentii, the experiment was carried out in Shahid-Sadoghi Desertification Research Station of Yazd, in center part on Iran. An experiment was carried out based on a completely randomized design with three replications and three treatments: 100% (control), 70% (moderate stress) and 40% (severe stress) of field capasity. Results indicated that water potential, relative water content, specific leaf area and relative chlorophyll content reveiled significant different effects between the stress treatments at 1% level. With reduction of soil moisture, E.sargentii was more sensitive to drought stress than E.microtheca in similar conditions.

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