List of Articles Pteridium aquilinum

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  1 - The study of Environmental Factors in Pteridium Aquilinum (L.) Kuhn Dispersion
  Nazanin Yadollahi Nematollah Khorasani Asadollah Mataji Vahid Etemad Elmira Kazemi Jahandizi
  Introduction: Ferns and their species are mostly found in wetting zones, for this reason the forests located at the northern side of Iran are considered as a suitable provenance for their growing up. Some studies have been conducted on Pteridium Aquilinum (L.) Kuhn in I More

  Introduction: Ferns and their species are mostly found in wetting zones, for this reason the forests located at the northern side of Iran are considered as a suitable provenance for their growing up. Some studies have been conducted on Pteridium Aquilinum (L.) Kuhn in Iran, but no comprehensive research has yet been done in the field of environmental factors effective on their dispersion. This research aims to study the environmental factors effective on dispersion of this specie of Pteridium Aquilinum (L.)Kuhn in different heights of Hirkani Forests. The present research has been done in the northwest side of Golestan National Park. Methodology:   Some plots containing Pteridium Aquilinum (L.) Kuhn have randomly been selected in various heights of the area under studying, and then the soil and other available plant species were sampled on field and random basis. After registration of the available data, the soil of the center of the sample plot was sampled with a depth of 30 cm. Then the correlation between environmental variables and flora was specified using Principal Components Analysis (P.C.A) and the treatments were compared by Multiple Range Duncan - Tukey Analysis in SPPS environment. Conclusion: The flora was classified using (TWINSPAN) analysis and consequently two ecologic groups were categorized. Some key species were introduced in each group and the result of (TWINSPAN) analysis is matrix 62 species and 18 plots measuring 100 Sqm.  (P.C.A) results show that groups have properly been separated based on soil fertility and dispersion of ecologic groups in the area under studying are influenced by chemical properties or fertility conditions of the provenance.  Manuscript profile
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  2 - Investigation of anatomical structure of Pteridium aquilinum leaves in Iran
  Maedeh Alaeifar Masoud Sheidai Fahimeh Koohdar
  Pteridium aquilinum belongs to the family Dennstaedtiaceae and includes herbaceous, perennial and terrestrial plants with global distribution. This plant grows well in sultry and shady areas; Therefore, the northern regions of Iran are one of the suitable habitats for t More

  Pteridium aquilinum belongs to the family Dennstaedtiaceae and includes herbaceous, perennial and terrestrial plants with global distribution. This plant grows well in sultry and shady areas; Therefore, the northern regions of Iran are one of the suitable habitats for this species. In the present study, the anatomical structure of leaves in 15 specimens of this species was investigated by the double staining method. In total, 23 quantitative and 6 qualitative characters were evaluated and measured. Characters such as the presence of a uniseriate epiderm, the presence of collenchyma cells in the distance between the epiderm and the vascular bundle, the presence of a V-shaped vessel in the center of the vascular bundel, bilateral phloem, stomatal guard cells Renal shape and simple needle-shaped trichomes in the lower epiderm are prominent anatomical features of the leaves in this species. The results of statistical calculations such as WARD analysis, how the populations were grouped and also drawing PCA diagrams showed the diversity of characters in the populations. On the other hand, despite the consideration of lower taxa than the species in this plant in some studies, the results of statistical calculations based on the characteristics of the anatomical structure of the leaf in the present study ruled out the existence of these taxa. Manuscript profile