Vernalisation

Q.

Vernalisation can be replaced by the action of

1. Cytokinin

2. Auxin

3. Gibberellin

4. Ethylene

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. 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. Choose correct option for the given below statements
I. All biennial plants are monocarpic.
II. All perennial plants show an inter flowering phase.
III. All angiosperms produce non-motile gametes.
IV. All sexually reproducing organisms show embryogenesis.

1. I-False, II-True, III- False, IV- True
2. I-True, II-True, III- False, IV- True
3. I-True, II-False, III- True, IV- False
4. I-True, II-False, III- False, IV- True

Q. Identify the set of biennial monocarpic plants

1. Beet, Rice, Carrot
2. Cabbage, Radish, Wheat

3. Carrot, Cabbage, Beet

4. Wheat, Rye, Barley

Q. If an Indian farmer wants to harvest a winter variety of wheat in June next year, then which of the following months is suitable for planting the crop this year?

1. March
2. May
3. September
4. April

Q. Sonalika and Kalyan Sona are ____A___ which are introduced in ____B_____.

Q. Devernalisation can be done by:

1. Dry air
2. Heat treatment
3. Red light exposure
4. Chilling treatment

Q.

Treatment of seed at low temperature under moist conditions to break its dormancy is called:

1. Scarification

2. Vernalization

3. Chelation

4. Stratification