In some seeds, dormancy is caused by the presence of endogenous chemical inhibitors. Which of the following chemicals can be applied to remove the effect of such inhibitory substances?

Step-by-step solution

Seed dormancy can be caused by endogenous chemical inhibitors such as abscisic acid, phenolic acids, and para-ascorbic acid. The effect of these inhibitory substances can be removed by the application of certain chemicals like gibberellic acid and nitrates. Therefore, nitrates are used to break seed dormancy, whereas abscisic acid, para-ascorbic acid, and phenolic acids act as inhibitors that cause dormancy. Answer: Nitrates