Question 30.01: Auxins are growth hormones capable of promoting cell elongation. They have been used in horticulture to promote growth, flowering and rooting. Write a line to explain the meaning of the following terms related to auxins. Auxins precursors
Anti-auxins
Synthetic auxins
One of the following plant hormones is responsible for the phenomenon of phototropism in plants. This is :
(a) giberellin
(b) eltroxin
(c) cytokinin
(d) auxin