Quantitative indicators and leaf pigment content of old beeches (Fagus orientalis) in the pure and mixed stand: case study, Asalem-Nav forests of Guilan

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FALLAHCHAI M.M.; Simaee M.; Mohammad Zade N.

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Journal: JOURNAL OF PLANT ENVIRONMENTAL PHYSIOLOGY Year:2019 | Volume:13 | Issue:4 (52) Page(s): 81-92

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Title

Quantitative indicators and leaf pigment content of old beeches (Fagus orientalis) in the pure and mixed stand: case study, Asalem-Nav forests of Guilan

Author(s)

FALLAHCHAI M.M. | Simaee M. | Mohammad Zade N. | Issue Writer Certificate

Keywords

AsalemQ2

BeechQ3

ForestQ3

Growth parametersQ2

Pigment contentQ1

Abstract

Beech (Fagus orientalis Lipsky) is one of the exceptional and extremely valuable species in the Forests of northern Iran and examining the quantitative indicators in both pure and mixed stand can determine the recovery or destruction of a Forest population. Accordingly, a pure and a mixed stand of parcel 319 with an area of 54 acres were considered for the study with similar conditions after a jungle cruise and field study in Asalem-Nav Forests. Then, 30 poles of old Beech trees with a diameter of more than one meter were selected randomly and some of quantitative and qualitative characteristics were measured. Results showed there was no significant difference between Beeches of the two stands in the diameter at breast height, total height, trunk length, and percentage of trunk length slenderness. On the other hand, qualitative variables of crown symmetry in both symmetric and asymmetric trees, trunk twisting in three modes (lack of twisting, sensible twisting to the right, and subtle twisting to the left), mode of branching on Beech tree trunk with divisions of branchless, low-branching, and high branching showed significant differences (P≤ 0. 5). Furthermore, allelopathic performance of a variety of tree species adjacent to the beach with mixed stand led to a significant reduction in the content of photosynthetic pigments chl. a, chl. a+b, and carotenoids while flavonoid concentration in the mixed stand indicated a considerable increase compared to the pure stand population. Results also indicated that the percentage of symmetry in the crowns of the trees in pure stand was more but the higher mean tree length and asymmetric crown in the mixed stand can be due to the existence of other species and competition for more light.

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APA: Copy

FALLAHCHAI, M.M., Simaee, M., & Mohammad Zade, N.. (2019). Quantitative indicators and leaf pigment content of old beeches (Fagus orientalis) in the pure and mixed stand: case study, Asalem-Nav forests of Guilan. JOURNAL OF PLANT ENVIRONMENTAL PHYSIOLOGY, 13(4 (52) ), 81-92. SID. https://sid.ir/paper/185714/en

Vancouver: Copy

FALLAHCHAI M.M., Simaee M., Mohammad Zade N.. Quantitative indicators and leaf pigment content of old beeches (Fagus orientalis) in the pure and mixed stand: case study, Asalem-Nav forests of Guilan. JOURNAL OF PLANT ENVIRONMENTAL PHYSIOLOGY[Internet]. 2019;13(4 (52) ):81-92. Available from: https://sid.ir/paper/185714/en

IEEE: Copy

M.M. FALLAHCHAI, M. Simaee, and N. Mohammad Zade, “Quantitative indicators and leaf pigment content of old beeches (Fagus orientalis) in the pure and mixed stand: case study, Asalem-Nav forests of Guilan,” JOURNAL OF PLANT ENVIRONMENTAL PHYSIOLOGY, vol. 13, no. 4 (52) , pp. 81–92, 2019, [Online]. Available: https://sid.ir/paper/185714/en

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