Question
Biology Question on Nutrition
Gray spots of oat are caused by deficiency of
A
Cu
B
Zn
C
Mn
D
Fe
Answer
Mn
Explanation
Solution
Gray spot diseases of oat is caused due to deficiency of manganese. Its symptoms include greyish - brown elongated specks and streaks, empty panicles, interveinal chlorosis on stem and leaves. The symptoms that occur only on leaves are irregular, greyish brown lesions which coalesce and bring about collapse of leaf. This is called grey speck symptom.