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EFFECT OF CARBON LEVELS FROM THREE ORGANIC SUBSTRATES ON EGYPTIAN SOIL FUNGI

S.I.I. ABDEL-HAFEZ and H. M. ABDEL-FATTAH
Plant and Soil
Vol. 60, No. 1 (1981), pp. 65-72
Published by: Springer
Stable URL: http://www.jstor.org/stable/42935020
Page Count: 8
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EFFECT OF CARBON LEVELS FROM THREE ORGANIC SUBSTRATES ON EGYPTIAN SOIL FUNGI
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Abstract

The fungal composition of soils with an equivalent percentage of carbon levels 2%, 5%, 10% and 20% from Olea europeae, Citrus sinensis and Eucalyptus rostrato leaves was studied after 10, 45 and 120 days using the dilution-plate method. They all induced significant increases in the total count of fungi, but their effect on the individual fungi was selective. The best substrate for the total fungus flora was Citrus sinensis and the poorest was Olea europeae leaves. The best three colonisers (possessing the highest counts), at carbon levels 2%, 5%, 10% and 20% at the end of the experimental periods were, respectively, as follows: for Olea europeae leaves, Scopulariaop sis brevicaulis, Drechslera halodes and Cylindrocarpon sp.; Aspergillus quadrilineatus, A. sydowi and Curvularia lunata; A. quadrilineatus, Alternaria alternata and C. lunata; and A. quadrilineatus, A. egyptiacus and A. terreus; for Citrus sinensis leaves, A. quadrilineatus, A. fumigatus and S. brumptii; A. fumigatus, A. quadrilineatus and A. versicolor; A. quadrilineatus, A. terreus and S. brumptii; and A. quadrilineatus, A. flavus and A. sydowi; and for Eucalyptus rostrata leaves, A. quadrilineatus, Rhizopus stolonifer and A. sydowi; A. quadrilineatus, A. nig er and A. terreus; A. niger, A. quadrilineatus and S. brevicaulis; and A. terreus, A. niger and A. quadrilineatus.

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