ECOLOGICAL INVESTIGATION ON ASTRAGALUS ADSCENDENS IN FERIDOUNSHAHR REGION OF ESFAHAN, IRAN

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AZIMI M.; MESDAGHI M.; RIAZI H.; FARAHPOUR MAHDI; ERAVANI M.

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Journal: IRANIAN JOURNAL OF RANGE AND DESERT RESEARCH Year:2005 | Volume:12 | Issue:4 (21) Page(s): 499-524

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Title

ECOLOGICAL INVESTIGATION ON ASTRAGALUS ADSCENDENS IN FERIDOUNSHAHR REGION OF ESFAHAN, IRAN

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Keywords

AUTECOLOGYQ2

ASTRAGALUS ADSCENDENSQ3

CYAMOPHILA DIEORAQ2

GAZANGABINQ4

PHONOLOGYQ4

FERIDOUNSHAHRQ4

Abstract

Astragalus adscendens is a perennial shrub 0.5 -1.0 m high with diagonally ascending branches, ending in flat-topped canopy of one meter or more in diameter. Its dense brunches give the canopy its wide funnel-like shape. In this research, the autecologies of A.adscendens in three ranges of elevation were investigated in FERIDOUNSHAHR region which has the minimum temperature of -20°cand the maximum temperature of 35.5°Cand the mean annual rainfall of 499 mm. Phonological stages were determined by using at least 30 plants in 3 major sites. In this research, a map of spatial distribution of this prickly shrub was provided. By random-systematic sample of line transects, biological criteria such as canopy cover, soil moisture were measured. The results showed that the most distribution of this plant was North and west aspects, up to 25-40% and 40% slopes at an elevation range between 2700-3000m. ASTRAGALUS ADSCENDENS begins it growth in early March after a period of winter dormancy and completes its vegetative growth in early June. This period corresponds to insect activity which progresses to the egg stage (Naeem and Behdad, 1988). The insect is in the nymph stage during flowering of the host plant. During seed ripening, the insect has completed its nymphal stage (instars I, H, III, and IV) and Gaz is secreted by the last instars in early October.

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APA: Copy

AZIMI, M., MESDAGHI, M., RIAZI, H., FARAHPOUR, MAHDI, & ERAVANI, M.. (2005). ECOLOGICAL INVESTIGATION ON ASTRAGALUS ADSCENDENS IN FERIDOUNSHAHR REGION OF ESFAHAN, IRAN. IRANIAN JOURNAL OF RANGE AND DESERT RESEARCH, 12(4 (21)), 499-524. SID. https://sid.ir/paper/106840/en

Vancouver: Copy

AZIMI M., MESDAGHI M., RIAZI H., FARAHPOUR MAHDI, ERAVANI M.. ECOLOGICAL INVESTIGATION ON ASTRAGALUS ADSCENDENS IN FERIDOUNSHAHR REGION OF ESFAHAN, IRAN. IRANIAN JOURNAL OF RANGE AND DESERT RESEARCH[Internet]. 2005;12(4 (21)):499-524. Available from: https://sid.ir/paper/106840/en

IEEE: Copy

M. AZIMI, M. MESDAGHI, H. RIAZI, MAHDI FARAHPOUR, and M. ERAVANI, “ECOLOGICAL INVESTIGATION ON ASTRAGALUS ADSCENDENS IN FERIDOUNSHAHR REGION OF ESFAHAN, IRAN,” IRANIAN JOURNAL OF RANGE AND DESERT RESEARCH, vol. 12, no. 4 (21), pp. 499–524, 2005, [Online]. Available: https://sid.ir/paper/106840/en

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