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Journal: PAJOUHESH-VA-SAZANDEGI | Year:1387 | Volume:21 | Issue:3 (80 IN NATURAL RESOURCES) | Start Page:100 | End Page:107

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Title

ANATOMICAL CHARACTERISTICS OF ARTEMISIA SIEBERI (CASE STUDY: VARD-AVARD, GARMSAR, SEMNAN)

Pages

 Start Page 100 | End Page 107

Abstract

 Artemisia have the most vast distribution in Iran. In this research anatomical of ARTEMISIA SIEBERI in VARD-AVARD, GARMSAR and SEMNAN was investigated. The specimens collected from various habitats (in 1200, 1400 and 1600 m elevation form sea) were fixed in FAA solution. Transfers sections and measured in laboratory by microscope. Anatomic characteristics such as leaf structure, paranchima layer, number and length of stomata, cambium layer were measured. To compare mentioned characteristics among elevations and regions, ANOVA was done. Totally, this research found that one of the main reasons of A. sieberi adaptation in arid and semi-arid regions is its anatomical properties, that is, changes of root and leaves led to increase of water uptake and decrease of evapo-transpiration. Fro this, in water stress conditions root shows an increase in length and thickness while in upper surface of leaf the number and area of stomata decrease.

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