National Academy of Agricultural Sciences (NAAS)
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PRINT ISSN : 2319-7692 Online ISSN : 2319-7706 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcmas@gmail.com / submit@ijcmas.com Editor-in-chief: Dr.M.Prakash Index Copernicus ICV 2018: 95.39 NAAS RATING 2020: 5.38 |
Cotton (Gossypium spp.) is one of the most important fiber crops playing a key role in economic and social scenario of the globe. It provides employment and sustenance to a population of nearly 42 Million people, who are involved directly or indirectly in cotton production, processing, textiles and related activities. In this experiment morphological and cultural character of FOV pathogen was studies. Morphological studies were carried out under different temperature on Potato dextrose broth (PDB) medium revealed growth and sporulation, variation in size of micro conidia, macro conidia and chlamydospores of FOV. Macroconidia were straight, spindle as well as sickle shaped and had 1-6 septa. The size of macroconidia was maximum at 20ºC (27.11×4.90μm) followed by 35ºC (26.11×3.90μm), 40ºC (25.90×4.20μm), 30ºC (25.33×4.18μm), 25ºC (23.11×3.70μm) and 15ºC (21.42×3.57μm). A maximum colony diameter (87.33mm) was recorded at 30ºC after ten days of incubation followed by (68.33mm) at 25ºC, (49.33mm) at 20ºC, (28.33mm) at 35ºC, (26.00mm) at 15ºC and (8.00mm) at 40ºC. No colony diameter was recorded at 45ºC temperature.
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