Authors : D.M. Survase
Page Nos : 127-129
Description :
As a seeds are living and on storage of them affect its germination and viability. Different vegetable seed borne pathogen was studied by Richardson (1990) and isolated more than 50 microorganisms associated with it. Destruction of stored seeds was carried out by many microorganisms.
In the present investigation seed borne fungi of spinach was studied and 14 fungal sps. i.e. Aspergillus flavus, A. niger, Phomopsis vexans, Drechslera longirostrata, Rhizopus stolonifer, Colletotrichum dematium, Macrophomina phaseolina, Curvularia lunata, Cladosporium sp., Alternaria tenuis, Fusarium moniliforme, Aspergillus candidus, Penicillium sps, Mucor sp, were isolated and identified. Out of these very common four fungal species Aspergillus niger , Curvularia lunata, Drechslera longirostrata and Fusarium moniliforme were brought into pure culture and used for further studies. Effect of some common medicinal plants tested against incident of seed mycoflora, seed germination, dry mycelial weight and TPC (Total Phenol Content) of root biomass of selected medicinal plants was determined invitro. Overall Semecarpus anacardium, Solanum xanthocarpum and Abrus precatorius root extract showed more inhibitory to incident of seed mycoflora and dry mycelial weight and promoting seed germination than the other test medicinal plants. Similarly Vitex negundo, Helicteres isora, Balanites aegyptiaca were stimulatory to incidence of seed mycoflora and dry mycelial weight and inhibitory to seed germination as compared to other test medicinal plants.
Keywords: plant biomass, seed mycoflora, seedling emergence, Spinach, TPC.
