Khaira disease of rice is due to the deficiency of
A. K
B. Zn
C. Cu
D. Fe
Answer: Option B
Solution (By Examveda Team)
Khaira disease of rice is due to the deficiency of Zinc.Khaira disease of rice is a micro-nutritional (Zn) deficiency characterized by the presence of dusty brown patches on leaves which ultimately undergo necrosis.
This is one of the most common diseases in rice. As it affects the leaf of the plant-the rate of photosynthesis decreases which ultimately causes (25 - 30)% production loss.
Related Questions on Plant Pathology
Which photosynthetic bacteria possess both PS I and PS II?
A. Purple sulphur bacteria
B. Cyanobacteria
C. Purple nonsulphur bacteria
D. Green sulphur bacteria

Join The Discussion