Genetically modified (GM) plants have been useful in-
Decreasing crop yield
Increasing post-harvest losses
Decreasing nutritional value of food
Making crop more tolerant to stresses
Genetic modification has:
(i) Made crops more tolerant to abiotic stresses (cold, drought, salt, heat).
(iii) Helped to reduce post-harvest losses.
(v) Enhanced nutritional value of food.