Diversity of arbuscular mycorrhizal fungi in irrigated and non-irrigated fields of southern Karnataka, India

Sunil Kumar, C. P. and Garampalli, Rajkumar H. (2013) Diversity of arbuscular mycorrhizal fungi in irrigated and non-irrigated fields of southern Karnataka, India. Journal of Environmental Biology, 34 (2). pp. 159-164. ISSN 0254-8704

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The two different agro-ecosystems were selected to study the spore density, species abundance, and diversity of arbuscular mycorrhizal fungi (AMF) in irrigated (Mandya district) and non-irrigated (Hassan district) agricultural fields in southern Karnataka region, India. A total of 22 AMF species were recorded during the study. Out of which 13 sp. were of Glomus, 4 sp. of Acaulospora, 1 sp. of Cetraspora, 1 sp. of Dentiscutata and 3 sp. of Gigaspora. The difference in species richness of AMF species in irrigated fields ranged from 5-12 sp. as compared to non-irrigated fields (5-11 sp.) and the difference may be attributed to the nutritional status of the soil. We also assumed that lower AMF colonization and abundance would be affected by water stress. Highest spore number and percent colonization of AM fungi were recorded in irrigated sites, showing 356-748 spore density and 70-92 % colonization. Whereas, in non-irrigated sites, 174-341 spore density and 40-72 % colonization was recorded. Different agro-climatic conditions like irrigation, soil pH, soil organic carbon, phosphorous correlated with the abundance and colonization of AM fungi.

Item Type: Article
Additional Information: Garampalli, R. H. stands for Garampalli, Rajkumar H.
Uncontrolled Keywords: article, India, Animals, abundance, animal, Karnataka, fungus, physiology, classification, species richness, agricultural land, irrigation (agriculture), spore, ecosystem, Ecosystem, species diversity, nutritional status, Agricultural Irrigation, arbuscular mycorrhiza, colonization, Hassan, mycorrhiza, Mycorrhizae, water stress
Subjects: B Life Science > Botany
Divisions: Department of > Botany
Depositing User: Arshiya Kousar Library Assistant
Date Deposited: 31 Oct 2019 05:34
Last Modified: 16 Jul 2022 10:02
URI: http://eprints.uni-mysore.ac.in/id/eprint/9656

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