Question

Winter varieties of wheat, if planted in A would B mature grain within a span of flowering season.

• A. A – Spring, B – Not Produce
• B. A –Spring, B - Produce
• C. A – Autumn, B - Produce
• D. More than one option is correct

Answer 1

The correct option is D More than one option is correct

In some plants, flowering is either quantitatively or qualitatively dependent on exposure to low temperature. This phenomenon is called vernalisation.

For example; wheat comes in two varieties, i.e. spring wheat and winter wheat. The spring wheat is sown, and planted in spring and is harvested by the end of the same season. During this period, this variety of wheat gets the desired exposure to low temperature. But if winter variety of wheat is planted in spring; it fails to get the desired period of low temperature.

As a result, these plants normally fail to flower or produce mature grain within a span of a flowering season. Hence, they are planted in autumn. They germinate, and over winter come out as small seedlings, resume growth in the spring, and are harvested usually around mid-summer.