Sr. No. Source Colony formation  Conidiophores size Height of conidial stalk
1 Apple baggasse Dense and crumpled 4±0.4cm  10±0.7cm
2 Pomegranate peel Isolated and not crumpled 5±0.5cm 11±0.9cm
3 Orange peel Isolated and not crumpled 4±0.7cm 8±0.3cm
4 Tamarind seed powder Isolated and crumpled  1.5±0.3cm 5±0.3cm
5 Carrot Isolated and  slightly crumpled  2±0.8cm 6±0.6cm
6 Groundnut A few Isolated and crumpled 3±0.3cm 8±0.7cm
7 Soil sample Small and Dense 1.8±0.3cm 7±0.3cm
8 Waste water Isolated and slightly  crumpled 1.6±0.2cm 7±0.7cm
9 Bread Small and Dense 1.7±0.2cm 3±0.4cm
Table: 2: Qualitative estimation of colony, conidiophores size and their height of Azospirillum niger