Identification and separation of two species of juniper in Golestan province by using quantitative traits of cone and seed

Publish Year: 1397
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:

BIOCONF20_801

تاریخ نمایه سازی: 28 اردیبهشت 1398

Abstract:

Among the Six native species of Juniperus genus in Iran, J. polycarpos and J. excelsa have highest frequent and geographical distribution on the highlands of the country and play a crucial role in the natural ecosystem of the presented area. Due to the similar appearance of mentioned species, it s difficult to identify them in nature.In this study, quantitative traits indicators of cone and seed with the aim of identification and separation of two species of Juniper were evaluated. For this purpose, ten mother trees were selected separately and from each tree, 1000 cones of fruit were collected and quantitative traits of cones and seeds were measured. The analysis of cone traits showed that the two species had a significant difference in weight, length, and width of the cone so that all of these indicators in J. polycarpos are higher than J. excelsa.While analysis on quantitative characteristics of seeds including length, width and weight did not show any significant differences, the seed vigor index indicators showed that J. polycarpos produces a significantly higher vigorous seed than J. excelsa. In general, the length, width, and weight of cones can be used as a proper index for differentiation and identification of J. polycarpos and J. J. excelsa species and the same indices of seeds are not suitable for this purpose.

Keywords:

Charbagh , Juniperus excelsa & polycarpos , Plant systematic , Golestan province , Biodiversity

Authors

Taj Mohammad Omarata

Department of Biology, Faculty of Science, University of Gonbad Kavous

Abolfazl Daneshvar

Department of Biology, Faculty of Science, University of Gonbad Kavous

Ali sattarian

Department of Biology, Faculty of Science, University of Gonbad Kavous

elham amini

Department of Biology, Faculty of Science, University of Tehran