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Main objective of production/use of herbicide resistant GM crops is to:
A
encourage eco-friendly herbicides
B
reduce herbicide accumulation in food articles for health safety
C
eliminate weeds from the field without the use of manual labour
D
eliminate weeds from the field without the use of herbicides
Detailed Solution
Weeds compete with crop plants for nutrients, water and light, and their removal by hand is costly and labour intensive.
Broad-spectrum herbicides such as glyphosate kill weeds, but they also kill ordinary crop plants.
Herbicide resistant (tolerant) GM crops carry a gene that makes them unaffected by the herbicide.
When the field is sprayed with the herbicide, only the weeds are killed and the crop survives, so the weeds are eliminated from the field without manual weeding.
These crops are used along with herbicides, so the objective cannot be to eliminate weeds without the use of herbicides.
Encouraging eco-friendly herbicides or reducing herbicide accumulation in food is not the main objective.
So the main objective is to eliminate weeds from the field without the use of manual labour.
Broad-spectrum herbicides such as glyphosate kill weeds, but they also kill ordinary crop plants.
Herbicide resistant (tolerant) GM crops carry a gene that makes them unaffected by the herbicide.
When the field is sprayed with the herbicide, only the weeds are killed and the crop survives, so the weeds are eliminated from the field without manual weeding.
These crops are used along with herbicides, so the objective cannot be to eliminate weeds without the use of herbicides.
Encouraging eco-friendly herbicides or reducing herbicide accumulation in food is not the main objective.
So the main objective is to eliminate weeds from the field without the use of manual labour.