NTA Abhyas NEET2020BotanyPlant - Growth and DevelopmentPractice
Which of the following is correct about seed dormancy?
Options
- AThe seed dormancy can be overcome by subjecting the seeds to warm conditions or by application of certain chem
- BAn external environment like an impermeable and hard seed coat is responsible for inducing seed dormancy.
- CThe presence of chemical inhibitors such as phenolic acids and para-ascorbic acid are internal factors that in
- DMore than one option is correct.
Correct answer
C. The presence of chemical inhibitors such as phenolic acids and para-ascorbic acid are internal factors that in
Step-by-step solution
Impermeable and hard seed coat; the presence of chemical inhibitors such as abscisic acids, phenolic acids, para-ascorbic acid; and immature embryos are some of the reasons which cause seed dormancy. Effect of inhibitory substances can be removed by subjecting the seeds to chilling conditions or by application of certain chemicals like gibberellic acid and nitrates.