Calcium deficiency in plants causes:
AYellowing of older leaves (typical of N deficiency)
BDistortion of growing tips, blossom-end rot in tomatoes (Ca is immobile in phloem; deficiency hits new tissues)
CIron toxicity
DExcessive flowering
Answer & Solution
Correct answer: B. Distortion of growing tips, blossom-end rot in tomatoes (Ca is immobile in phloem; deficiency hits new tissues)
Ca is immobile once incorporated into cell walls/membranes. Deficiency shows in NEW tissues: distorted growing points, hooked leaves, blossom-end rot in tomatoes/peppers. (Mobile-element deficiencies like N, P show in OLDER leaves first.)
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