A biennial plant requiring vernalisation is induced to flower after prolonged exposure to low temperatures. However, immediately after this cold treatment, if the plant is exposed to a brief period of high temperatures, the effect of vernalisation is nullified. This phenomenon is known as:
Devernalisation
Stratification
Photoperiodism
Vernalisation reversal
Related Questions
Stimulus for vernalisation is perceived by
Shoot apex
Embryo of the seed
Leaves
Both (1) and (2)
What is the significance of vernalisation in crop plants like winter wheat?
Allows flowering throughout the year
Prevents early flowering during unfavorable conditions
Ensures flowering in the spring after the winter season
Promotes vegetative growth during winter
Examples of plants which requires vernalisation is/are
Pea
Beat
Cabbage
All of these
Flowering of plants by exposure to low temperature is called
Vernalisation
Cryobiology
Photoperiodism
Micrografting
If a winter wheat variety is not exposed to cold temperatures, it will:
Flower earlier
Flower later
Likely not flower
Produce more seeds
Vernalisation can be reversed by
Application of high temperature
Application of auxin
Application of more less temperature
Application of gibberellin
Which plant group typically requires vernalisation for flowering?
Tropical annuals
Biennials
Perennials that flower throughout the year
Plants with short life cycles
Vernalisation is the promotion of flowering by:
Exposure to low temperature
Exposure to high temperature
Exposure to short photoperiods
Exposure to long photoperiods
Temperature required for vernalisation is
5℃ to 10℃
5℃ to 15℃
0℃ to 5℃
3℃ to 17℃
Vernalisation is most effective when the cold treatment is applied to:
Mature, fully grown plants
Dry seeds
Germinating seeds or young seedlings
Flowers
