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Question
Match column I with column II and choose the correct option.
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Solution
1) The plants that flower when day length (period of light) is less than a certain critical length are called short day plants. Examples of short day flowers are Xanthium flower, Tobacco and Strawberry.2) Thermonastic movements are movements brought by changes in temperature. Thermonastic flowers open with a rise and close with a drop in temperature. Example, Crocus and Tulipa.3) Millet is a thermophile and xerophile short season crop. It is more resistant to high temperatures and drought. Hence it requires low temperature.4) Coconut water contains many known and uncharacterized plant growth regulators (PGRs or phytohormones), it is traditionally used as a growth supplement in plant tissue culture/micropropagation. Hence, the correct match is A- 4, B- 1, C- 2, D- 3.
1) The plants that flower when day length (period of light) is less than a certain critical length are called short day plants. Examples of short day flowers are Xanthium flower, Tobacco and Strawberry.
2) Thermonastic movements are movements brought by changes in temperature. Thermonastic flowers open with a rise and close with a drop in temperature. Example, Crocus and Tulipa.
3) Millet is a thermophile and xerophile short season crop. It is more resistant to high temperatures and drought. Hence it requires low temperature.
4) Coconut water contains many known and uncharacterized plant growth regulators (PGRs or phytohormones), it is traditionally used as a growth supplement in plant tissue culture/micropropagation.
Hence, the correct match is A- 4, B- 1, C- 2, D- 3.
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