AIIMS 2003
- Exam
- AIIMS
- Year
- 2003
- Subject
- Botany
- Chapter
- Mineral Nutrition
AIIMS 2003 · Botany · Mineral Nutrition
Azolla is used as a biofertilizer because it
Azolla is used as a biofertilizer because it
Options
- Amultiplies very fast to produce massive biomass
- Bhas association of nitrogen - fixing Rhizobium
- Chas association of nitrogen - fixing cyan obacteria
- Dhas association of mycorrhiza.
Correct answer
C. has association of nitrogen - fixing cyan obacteria
Step-by-step solution
Azolla is a pteridophyte and used as a biofertilizer because it has association with nitrogenfixing cyanobacteria Anabaena azollae.