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Updated: 18-07-12 | ||||
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SOME OBSERVATIONS ON MYCORRHIZAE OF OLEA CUSPIDATA WALL.
Abstract: Mycorrhizae were found on the specimens of Olea cuspidata Wall., collected from the scrub forest in the Salt Range west of Jhelum in the foot hills of the Himalayas. Mycorrhizal root system was hetei'orrhizic. Both ectomycorrhizae and endomycorrhizae were found on the same plant but on different roots. Eniomycorrhizae were covered with a 20-30 (A thick, parenchymatous and smooth mantle of fungus. No hartig net was observed. In endomycorrhizae the cortex contained an abundince of thick walled vesicles and coils of aseptate hyphae, characteristics of Vesicular Arbuscular Mycorrhizae caused by Endogone fasciculata. No Endogone spores were recovered from soil around olive roots by the wet sieving and decanting technique because of the extremely smaller size, always under 100 [A, that they would not be retained on the sieves. No attempts were made to isolate the causal fungi. Significance of these findings in the cultivation of Olive in Pakistan is discussed.
Institute of Biological Sciences, University of Islamabad, Islamabad, Pakistan. |
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