Summary
The addition of 5 to 100 ppm kinetin during vernalization is a substitute for a part of the cold treatment in the winter wheat cultivar Sava.
A cold treatment that is not long enough in itself makes vernalization possible even if only 5 ppm kinetin is added. The effect can be gradually improved by increasing the dose from 20 to 100 ppm, but 200 ppm kinetin is harmful. The smallest quantity of kinetin added to the otherwise optimal 40-day cold treatment results in total oververnalization.
A heading percentage comparable to that of the 40-day vernalization period without kinetin can be obtained in 20-day with 100 ppm kinetin. This method can reduce the vernalization time by half and accelerate winter wheat generations.
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Barabás, Z., Csepely, I.T. Shortening vernalization of winter wheat with kinetin. Euphytica 27, 831–835 (1978). https://doi.org/10.1007/BF00023721
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DOI: https://doi.org/10.1007/BF00023721