Improving the survival, establishment and growth characteristics of Juniperus excelsa seedlings by inoculation of native mycorrhizal fungi

Document Type : Research Paper

Authors

1 Assoc., Prof., Forest Research Division, Research Institute of Forests and Rangelands

2 Research Expert Research Institute of Forests and Rangelands Agricultural Research, Education and Extension Organization (AREEO) Tehran, Iran

3 MSc, Research Institute of Forests and Rangelands, I. R. Iran

4 Associate Professor- Department of Forestry and Forest Economics- Faculty of Natural Resources- University of Tehran

Abstract

One of the strategies to promote the survival and growth of forest seedlings in rehabilitating damaged habitats is to identify arbuscular mycorrhizal fungi that symbiosis with the roots of the plants in that habitat and then propagate and inoculate them to enable the productive seedlings. The aim of this study was to identify arbuscular fungi coexisting Greek juniper (Juniperus excelsa M.Bieb.) of Chahartagh habitat (Chaharmahal and Bakhtiari province), and to evaluate the role of these fungi in increasing the viability and vegetative components of mycorrhizal juniper seedlings in three consecutive years. The roots and soil around the rhizosphere of nine juniper trees were sampled completely randomly and transferred to the laboratory in cold conditions (in the icebox). After identifying five species of symbiotic fungi, using identification keys in authoritative articles, the inoculum produced with maize was given to germinated juniper seeds, after 4 months. According to the results, the symbiotic effect of identified and inoculated arbuscular fungi including Ambispora gerdemannii, Funneliformis mosseae , Glomus hoi, Septoglomus constrictum, and Rhizophagus intraradices was positive on root length, shoot height, root collar diameter, and seedling survival. At the end of the third year, about 50% of the control seedlings were destroyed, however, the losses for inoculated seedlings ranged from 17 to 40%. A. gerdemannii and R. intraradices had the most positive effect on plant survival. The growth factors under R. intraradices treatment had the highest amount.

Keywords

References

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Forest and Wood Products
Volume 74, Issue 4
February 2022
Pages 421-432

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