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Home » 1. Some varieties of wheat are known as spring wheat while others are called winter wheat. The former variety is sown, and planted in spring and is harvested by the end of the same season. However, winter varieties, if planted in spring, fail to flower or produce mature grains within a span of a flowering season. Explain, why?
1. Some varieties of wheat are known as spring wheat while others are called winter wheat. The former variety is sown, and planted in spring and is harvested by the end of the same season. However, winter varieties, if planted in spring, fail to flower or produce mature grains within a span of a flowering season. Explain, why?
Biology | CBSE | Class 11 | NCERT Exemplar | Plant Growth and Development
1. Some varieties of wheat are known as spring wheat while others are called winter wheat. The former variety is sown, and planted in spring and is harvested by the end of the same season. However, winter varieties, if planted in spring, fail to flower or produce mature grains within a span of a flowering season. Explain, why?

Solution:

They would generally fail to flower or yield ripe grain during a flowering season if planted in the spring, thus they are sown in the autumn. After that, they germinate, and seedlings emerge over the winter season. To flower, some plants require a specific temperature. This is known as vernalization, and it occurs when a low temperature is required for flowering.

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