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Question
Which one of the following is NOT a biofertiliser?
Which one of the following is NOT a biofertiliser?
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Solution
The correct option is D Agrobacterium
∙ Biofertilisers are defined as preparations containing cells of efficient strains of microorganisms that help crop plants uptake nutrients. Examples include the bacteria Rhizobium, Azotobacter, etc.
∙ Mycorrhiza is a fungus that is in a symbiotic association with roots of plants and it helps in the absorption of phosphates from the soil.
∙ Agrobacterium is a bacterium that causes tumours in plants and is therefore not a biofertiliser.
Agrobacterium
∙ Biofertilisers are defined as preparations containing cells of efficient strains of microorganisms that help crop plants uptake nutrients. Examples include the bacteria Rhizobium, Azotobacter, etc.
∙ Mycorrhiza is a fungus that is in a symbiotic association with roots of plants and it helps in the absorption of phosphates from the soil.
∙ Agrobacterium is a bacterium that causes tumours in plants and is therefore not a biofertiliser.
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