Hormone responsible for vernalization is

Florigen

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Caulocaline

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Abscisin

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Vernalin

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Solution

The correct option is B Vernalin
Veralin is a plant hormone. This hormone is produced on vernalization (chilling treatment of plants) and hence, the name vernalin.
Florigen is a flowering hormone.
Caulines are group of hormones specific to special regions of plants. Rhizocaline is a root forming hormone, caulocaline is a shoot forming hormone and phyllocaline is a mesophyll tissue forming hormone.
Abscisin, commonly called as abscisic acid, is a plant hormone responsible for plant developmental process.
Thus, the correct answer is option D.

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