Blossom end rot in tomato is caused by the deficiency of

Solution (By Examveda Team)

Blossom end rot in tomatoes is caused by the deficiency of Calcium.
Blossom end rot is a physiological disease caused by a localized deficiency of calcium in the fruit.
Calcium is a nutrient that is required in relatively large quantities by rapidly growing fruit, especially by those cells at the blossom end of the young fruit.