Solution: The emergence of symptoms is determined by the mobility of a missing element. Symptoms develop in juvenile portions of the plant if the deficient element is relatively stationary, while symptoms appear in older areas of the plant if the deficient element is mobile.
Why is it that in certain plants deficiency symptoms appear first in younger parts of the plant while in others they do so in mature organs?
Why is it that in certain plants deficiency symptoms appear first in younger parts of the plant while in others they do so in mature organs?