1. Cultural characteristics of ve test isolates of Bipolaris oryzae from Bihar
No. of
groups
Test Isolates Cultural characteristics No. of Isolates
in groups
Spore Size Sporulation
6
Mean length Mean width conidia/ml(x10 )
1. BO-Sam Black with fluffy growth 16 6.87 4.28 7.6 x 106
2. BO-WC Black with suppressed growth 10 5.34 4.10 6.6 x 106
3. BO-Aur Grey with cottony growth 9 5.47 4.44 6.9 x 106
4. BO-Naw
Grey & white mix with cottony
growth 12 6.62 5.13 7.1 106
5. BO- Kat White with cottony growth 5 7.48 5.51 7.3 x 106
BO-Sam for Samastipur, BO-WC for West Champaran, BO-Aur for Aurangabad, BO-Naw for Nawada and BO- Kat for Katihar