Question

What happened when we inoculated Rhizobium in wheat field?
(1) No increase in production (nitrogen content of soil remains same)
(2) A lot of increase in production (nitrogen content of soil increases)
(3) Fertility of soil decreases
(4) Fertility of soil increases

Answer 1

Classification

KINGDOM -. bacteria

PHYLUM - proteobacteria

CLASS -. alphaproteobacteria

ORDER - rhizobiales

FAMILY - rhizobiaceae

GENUS - rhizobium

If we inoculated rhizobium in wheat field , there is no increase in the production .
Because we doesn't contain roots nodules for fixing nitrogen so they can't fixes. The nitrogen content on soil remains same.

RHIZOBIUM is a type of soil bacteria which is gram negative . Main function of this bacteria is that fix nitrogen.

Plant absorb atmospheric nitrogen and they converted this atmospheric nitrogen into ammonia and thus they provide organic nitrogenous compounds for example gultamine.

It is a symboitic bacteria ,

Symbiosis can defined as when the two plants living together and mutually benefitted. Such type of bacteria is called symbiotic .

They generally causes infection on roots due to which roots get swell little bit. This rhizobium bacteria fix the atmospheric nitrogen .

Which is a good source of bio fertilizers.