First slide

Microbes as Biofertilisers

Question

Mycorrhizae as biofertilizers are useful in
I. Absorbing more phosphorus from the soil
II. Fixing the atmospheric nitrogen
III. Protecting the plant from soil borne pathogens
IV. Providing tolerance to plant from salinity and drought.

Easy

A

I, II, III
B

I, III, IV
C

II, III, IV
D

I, II, III, IV

Solution

Mycorrhizae are the roots of higher plants associated with fungal mycelia like Glomus. The fungus helps mainly from phosphorus and supplies it to the plant. Being present around the root, it protects the root from other pathogens and pests. It protects the plant form salinity and water stress. It does not fix atmospheric nitrogen.

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