Vernalisation

Q.

Do bamboo plant shows gregarious flowering?

Q.

Vernalization treatment can convert

1. A biennial into an annual

2. A spring variety into a winter variety

3. An annual into a perennial

4. All of the above

Q. The promotion of flowering by providing exposure to a period of low temperature is referred to as .

1. thermoperiodism
2. photoperiodism
3. vernalisation
4. phototropism

Q. Due to bad weather, winter wheat crops did not survive and perished. A scientist came up with the idea to prevent this from happening in the future. What technique could he have possibly employed to make that happen?

1. Pruning
2. Use of high saline soil
3. Vernalization
4. None of the above

Q. If winter varieties are planted in spring, then they

1. produce flowers normally
2. produce grains like spring variety
3. do not need vernalization
4. can not produce flowers and mature grains

Q.

Will frost kill seeds?

Q. Identify X.
Photoperiodism : Light duration :: Vernalization : X

1. High temperature
2. Dormancy period
3. Flowering
4. Low temperature

Q. Match the following plant varieties to their respective descriptions: $\begin{array}{cc}\text{i. Winter variety}& \text{1. Planted in spring, grows till winter,}\\ & \text{flowers and forms seeds in the next year.}\\ \text{ii. Spring variety}& \text{2. Planted in autumn, germinates in}\\ & \text{winter, grows in spring, and}\\ & \text{harvested usually during mid-summer.}\\ \text{iii. Biennial variety}& \text{3. Planted in spring and}\\ & \text{harvested during autumn.}\end{array}$

1. i-2, ii-3, iii-1
2. i-3, ii-2, iii-1
3. i-1, ii-3, iii-2
4. i-1, ii-2, iii-3

Q. Stimulus of low temperature in vernalisation is perceived by

1. leaves
2. embryo of the seed
3. flower
4. pericarp

Q.

Define biennials.