Which one of the following hormones stimulates stem elongation and pollen tube growth?
A) auxin (IAA)
B) ethylene
C) gibberellins
D) cytokinins

Question

Quizplus · Accepted Answer

Gibberellins are hormones that promote stem elongation and pollen tube growth. They also help in the mobilization of stored nutrients in seeds during germination. Auxin (IAA) promotes cell elongation and differentiation, cytokinins promote cell division, and ethylene promotes senescence and fruit ripening.

Which One of the Following Hormones Stimulates Stem Elongation and Pollen