Answer
Verified
421.8k+ views
Hint: Flowering is affected by several factors of temperature and climate. Out of these factors, one is Vernalization. Vernalization is the effect of low temperatures on the plant by exposing them to decreased temperatures to induce flowering.
Complete answer:Vernalization is the effect of the lesser temperatures on flowering plants. Vernalization is essential for flowering for some plants such as winter crops and biennial plants like radish, carrot, cabbage, etc.
The effect of vernalization was first observed by T.D. Lysenko. The effects of low temperatures are received by meristematic tissue in apical and axillary buds. The range of low temperature varies from zero degrees Celsius to a five-degree Celsius average. The effect of vernalization is for a few hours to a few weeks. Moist conditions and aeration, i.e. the presence of oxygen is needed for Vernalization. The hormone vernaline is produced in the cells of meristematic tissue at low temperatures. This hormone is transported to the flowering buds where it promotes and accelerates flowering.
Thus, based on the above information we can conclude that Vernalization is the effect of low temperature on the acceleration of flowering.
Hence, the correct answer is option (D).
Note: Vernalization can also be used to artificially induce the flowering. In case of normal or warm climate plants, flowering can be induced by satisfying the need of low and cold temperatures. This is done for the production of seeds of winter flowering plants to be sold commercially for economic purposes. Flowering is induced also to many temperate zone plants in a similar manner.
Complete answer:Vernalization is the effect of the lesser temperatures on flowering plants. Vernalization is essential for flowering for some plants such as winter crops and biennial plants like radish, carrot, cabbage, etc.
The effect of vernalization was first observed by T.D. Lysenko. The effects of low temperatures are received by meristematic tissue in apical and axillary buds. The range of low temperature varies from zero degrees Celsius to a five-degree Celsius average. The effect of vernalization is for a few hours to a few weeks. Moist conditions and aeration, i.e. the presence of oxygen is needed for Vernalization. The hormone vernaline is produced in the cells of meristematic tissue at low temperatures. This hormone is transported to the flowering buds where it promotes and accelerates flowering.
Thus, based on the above information we can conclude that Vernalization is the effect of low temperature on the acceleration of flowering.
Hence, the correct answer is option (D).
Note: Vernalization can also be used to artificially induce the flowering. In case of normal or warm climate plants, flowering can be induced by satisfying the need of low and cold temperatures. This is done for the production of seeds of winter flowering plants to be sold commercially for economic purposes. Flowering is induced also to many temperate zone plants in a similar manner.
Recently Updated Pages
How many sigma and pi bonds are present in HCequiv class 11 chemistry CBSE
Mark and label the given geoinformation on the outline class 11 social science CBSE
When people say No pun intended what does that mea class 8 english CBSE
Name the states which share their boundary with Indias class 9 social science CBSE
Give an account of the Northern Plains of India class 9 social science CBSE
Change the following sentences into negative and interrogative class 10 english CBSE
Trending doubts
Which are the Top 10 Largest Countries of the World?
Difference between Prokaryotic cell and Eukaryotic class 11 biology CBSE
Fill the blanks with the suitable prepositions 1 The class 9 english CBSE
Difference Between Plant Cell and Animal Cell
Give 10 examples for herbs , shrubs , climbers , creepers
Differentiate between homogeneous and heterogeneous class 12 chemistry CBSE
The Equation xxx + 2 is Satisfied when x is Equal to Class 10 Maths
How do you graph the function fx 4x class 9 maths CBSE
Write a letter to the principal requesting him to grant class 10 english CBSE