e-ISSN 2231-8542
ISSN 1511-3701

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Influence Of Organic Matter On Am Colonization And Associated Rhizosphere Mycoflora In Vigna Unguiculata Subsp. Unguiculata (L.) Walp

K Udaiyan, T. Muthukumar, A. Chitra and S. Greep

Pertanika Journal of Tropical Agricultural Science, Volume 21, Issue 1, April 1998

Keywords: Organic Matter, Am Fungi, Microfungal Population, Vigna Unguiculata

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A Greenhouse Investigation Was Undertaken To Determine The Influence Of Organic Amendments On The Colonization Of Arbuscular Mycorrhizal (Am) Symbiosis And Rhizosphere Microfungal Population In Vigna Unguiculata Subsp. Unguiculata (L.) Walp. Grown In Sandy Loam. Pongamia Glabra Leaves (Pl) And Goat Pellets (Gp) Were Applied At The Rates Of 5, 10 And 15 G Kg'1 Soil Either Alone Or With Acaulospora Scrobiculata, Glomus Aggregatum And G. Etunicatum. Plant Dry Weights, Nodulation And Tissue Nutrients Differed With Am Fungi, Types Of Organic Matter And Their Concentrations. Increased Rates Of Pl Amendment Enhanced Am Colonization; In Contrast, Higherrates Of Gp Amendment Suppressed Am Fungi Colonization. Among Plant Nutrients, Potassium Content Increased Profoundly With Increasing Rate Of Organic Matter Amendments With Few Exceptions At 90 D But At 45 D It Showed A Reverse Trend At Higher Concentration. Microfungal Populations Were Higher' In Pl-Amended Soils Than In Gpamended Soils. Among The Various Types Of Microfungal Genera Isolated, Aspergillus Had The Most Diverse Species.

ISSN 1511-3701

e-ISSN 2231-8542

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