Abstract
The present study to investigated that the arbuscular mycorrhizal fungal root colonization and spore population in some medicinal at Yellanahalli hills, valley view of Nilgiris, Udhagamandalam, Tamilnadu, India.Root and rhizosphere soil samples were collected during the month of August, 2017 - March, 2018 Soil pHwas to be recorded. From the study results revealed that totally 25 plant species belonging to 13 families were recorded root colonization and rhizosphere spore population. A totally 12 Arbuscular mycorrhizal fungal species belonging to 7 genera and 2 different Orders were isolated and identified. The maximum sporepopulation was found in the rhizosphere soil samples of Justicia procumbens (380 /100 g of soil) which belongs to the family Acanthaceae and the lowest spore population was observed in the Crotalarieae juncea(102 / 100 g of soil) belongs to Fabaceae. Among these plant species the highest 81% AM fungal infection wasfound in roots of Solanum nigrum belongs to the family Solanaceae While the lowest 23 % AM fungal association was found in the root of Verbascum thapsus belongs to Scrophulariaceae.
Highlights
From the study results revealed that totally 25 plant species belonging to 13 families were recorded root colonization and rhizosphere spore population
Among these plant species the highest 81% Arbuscular mycorrhizae (AM) fungal infection was found in roots of Solanum nigrum belongs to the family Solanaceae While the lowest 23 % AM fungal association was found in the root of Verbascum thapsus belongs to Scrophulariaceae
In the present research, revealed that AM fungal colonization and spore population totally 25 plant species belongs to 13 families and pH of rhizosphere soil samples ranges between 4.8 to 6.6 were recorded from the study region
Summary
As the world population continues to increase, the demands placed on agriculture to supply future food and fiber needs will be one of the greatest challenges facing the agricultural community. Arbuscular Mycorrhizal fungi are known to several benefits of the hosts by improving the uptake of other nutrients such as nitrogen [4], copper [5], sulphur, potassium and calcium [6] and by limiting uptake of toxic heavy metals such as Zn and Cd from soil [5] and they increase drought tolerance [7], disease resistance [8] In this present research work, the arbuscular mycorrhizal fungal root colonization and spore population in the rhizosphere soil samples were invesigated in Yellanahalli hills, valley view of Nilgiris, Udhagamandalam, Tamilnadu
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