Deficiency of which of the following elements delay flowering in plants?

Options

A. Fe, Mn, Mo
B. N, S, Mo
C. Ca, Mg, K
D. N, K, S

Answer

B

Explanation

Nitrogen deficiency causes yellowing of older leaves (chlrosis). Deficiency of nitrogen also causes dormancy of lateral buds, late flowering, purple colouratio and wrinkling of cereal grains molybdenum deficiency causes chlorotic interveinal mottling of the older leaves, flower formation is inhibited and also causes whip tail disease in cualiflower plants. sulphur deficiency causes yellowing of leaves and delay in flowering.