Which one of the following is non-symbiotic biofertilizer?[1998]a)Azot...
Azotobacter is a free living nitrogen fixing bacterium, Rhizobium is symbiotic and found in the root nodules of leguminous plants, Anabaena occurs in assoction with Azolla. VAM is vesicular arbuscular mycorrhiza.
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Which one of the following is non-symbiotic biofertilizer?[1998]a)Azot...
Non-symbiotic Biofertilizer
- Biofertilizers are the living organisms that enrich the nutrient quality of the soil to promote plant growth.
- There are two types of biofertilizers- symbiotic and non-symbiotic.
- Symbiotic biofertilizers are those that establish a mutualistic relationship with the plant and fix atmospheric nitrogen. Example- Rhizobium, Azolla, Frankia, etc.
- Non-symbiotic biofertilizers are those that do not form any symbiotic relationship with the plant and are free-living. Example- Azotobacter, Azospirillum, etc.
Answer: (a) Azotobacter is a non-symbiotic biofertilizer.
Which one of the following is non-symbiotic biofertilizer?[1998]a)Azot...
As we know that anabaena is associated with azolla,Vam is vesicular arbucular mycorrhiza and rhizobium is symbiotically associated with root of legumes plant .
whereas ,Azotobacter is free living nitrogen fixing bacteria. but this is also show symbiotic association with some plant and this is also used in crop field for nitrogen fixation .
so I think they all are symbiotically associated.