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M. C. Rajalakshmi ¹, P. Shakila ²

Affiliations
1 Department of Botany, H.H. The Rajah’s College, Pudukkottai-622 001, T.N., IN
2 Department of Botany (DDE), Annamalai University, Annamalai Nagar, Chidambaram, T.N, IN

Abstract

An extramural survey of airborne microbial components was conducted over the groundnut field (Arachis hypogaea L. var. SB-13) at Peravurani, Thanjavur District. In order to access, the disease incidence to the crop by pathogenic spore types. Over a period of six months survey, a total number of fungal spores encountered were 15 belonging to Phycomycetes, Basidiomycetes and Deuteromycetes. The major species were Aspergillus fumigatus, Aspergillus niger, Aspergillus oryzae, Cladosporium spp. and Penicillium spp. The airborne spores of Cercospora personata, Cercosporidium sp., Puccinia spp. and Alternaria spp. were found to be pathogenic causing huge loses to the groundnut.

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M. C. Rajalakshmi ¹, P. Shakila ²

Affiliations
1 Department of Botany, H.H. The Rajah’s College, Pudukkottai-622 001, T.N., IN
2 Department of Botany, Annamalai University, Annamalai Nagar-608 002, Chidambaram, T.N., IN

Abstract

The research paper reports the physico-chemical characteristics of Kendikulam pond at Peravurani, Thanjavur district, Tamil Nadu. While studying a number of parameters on physico-chemical properties, plankton analyses were made to check the fitness of water for drinking, irrigation and for fish growth. Observations of this study suggested that the pond was highly eutrophic in nature.

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