Investigation of Biocomponents Over Jowar Crop Field at Jamkhed

S.M. Baraskar

Abstract


In the present study aerobiological investigation was carried out over Jowar crop field using continuous volumetric Tilak Air Sampler during four consecutive seasons two kharif (2009 and 2011) and two rabi seasons (2008 – 2009, 2009 -2010) at Jamkhed. Jowar (Sorghum vulgare pers) is a major crop and used as staple food and fodder in India and it is affected by different airborne diseases. During these study different airborne components such as fungal spores, pollen grains, insect parts etc. have been recorded. Among them the common fungal spores were Cladosporium, Alternaria, Curvularia, Cercospora, Helminthosporium, Rust spores, Albugo, Smut spore, Fusariella, Pyricularia, Bispora, Collecotricum, Claviceps etc. was observed and were responsible for causing number of diseases over Jowar crop field. The total 80 fungal spore types and 8 other types were found. Analysis of airspora revealed class wise variation in the order of dominance. The group Deuteromycotina dominated the airspora having highest concentration (63.22% and 50.98%) in rabi and kharif Session respectively. followed by Basidiomycotina (20.00% and 11.00%), Ascomycotina (7.30% and 14.76%), Other types (7.69% and 10.71%), Zygomycotina (0.56% and 11.54%), Myxomycotina (0.56% and 1.00%), Myceliasterilia 0.65% in rabi seasons only. This data may be useful in formulating basis for disease forecasting when studied in relevance to meteorological parameters.


Keywords


Jowar field, Air sampler, Biocomponents, and meteorology.

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References


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