When leaves of crop plants show brownish coloration from the tips of the mid-ribs backward, they are showing deficiency symptom of? By: Sunday|Published on: Jul 11|Categories: Agricultural Science WAEC| 0 comments A. magnesium B. zinc C. nitrogen D. copper E. phosphorus Correct Answer: Option E – phosphorus Users Also Read These:The deficiency symptom peculiar to vitamin B in…Chlorosis with characteristic parallel white or…What should the hospital have done to prevent X from…Chlorosis observed along the veins of leaves is a…An essential element whose deficiency in plants will…SEE ALSO Which of the following crops produces latex?