Influence of mycorrhizal developmental stages and plant age on rhizosphere mycoflora of Pinus kesiya (Royle)
Sharma, G. D.
Quantitatively the population was recorded to be high around thc mycorrhizal roots. Some fungi were specific to different stages of mycorrhizal development. Rhizopus nigricans and Cunninghamella elegans were recorded at 5% mycorrhizal association stage. Fusarium sp. was found at 20% mycorrhizal association, while Mucor spp. were obtained at 60% stage. Verticillium sp. had the highest frequency of occurrence in the beginning of mycorrhizal association but later on Penicilium spp. were found to be the most common. Sugar content of mycorrhizal and nonmycorrhizal roots were determined to assess their effect on the mycorrhizospheric micropopulation. The mannitol and trehalose were present only in mycorrhizal roots.
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