National Academy of Agricultural Sciences (NAAS)
|
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 |
The pathogen Bipolaris oryzae was subjected to different cultural conditions viz., media, temperature, pH, light and nutrient source under in vitro conditions. The maximum radial growth of 84.83 mm was recorded on paddy leaf extract agar followed by potato dextrose agar (61.33 mm). On this medium, the colony appeared greyish-white to dark brown, thick, leathery slightly raised and profuse mycelia with brown colored conidia. Similarly on liquid media, maximum dry mycelial weight of 113.06 mg was recorded on paddy leaf extract broth followed by potato dextrose broth (98.28 mg).Maximum radial growth of 70.67 mm,62.83 mmand68.00 mm was recorded at 30°C,25°C and complete dark regime, respectively. Maximum dry mycelial weight of 113.0 mg was recorded at pH 7.0 followed by 103.0 mg at pH 7.5 and 97.32 mg at pH 6.5.Among the different carbon and nitrogen sources maximum growth was recorded in glucose (89.57, 102.86, 112.73 and 128.88 mg)and ammonium peptone (79.10, 97.43, 103.61 and 115.24 mg) at 0.5, 1.0, 1.5 and 2.0% concentration respectively.
Citations |
 |
 |
 |
 |
