Plant Growth and Development Question 12
12. Which of the following is not an inhibitory substance governing seed dormancy? [2020]
(a) Abscisic acid
(b) Phenolic acid
(c) Para-ascorbic acid
(d) Gibberellic acid
Show Answer
Answer : d
Hints & Solutions
(d) Gibberellic acid breaks seed dormancy. It activate synthesis of alpha-amylase which breakdown starch into simple sugar. The Phytohormones gibberellic acid (GA) has essential signaling functions in multiple processes during plant development. In rice, GA signaling plays an important role in spikelet fertility.
