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Effect of gibberellic acid treatment during vernalization on various types of winter wheat



Effect of gibberellic acid treatment during vernalization on various types of winter wheat



Cereal Research Communications 8(3): 545-558



One tall, 2 semi-dwarf and 1 dwarf winter wheat varieties were treated with 5, 10, 20 and 50 ppm GA3 solution from the 30th to the last day of vernalization. On the 2nd day after the end of vernalization, genotypes of various heights could be distinguished by measuring the total seedling height to the upper leaf node. The differences in GA3 insensitivity due to different doses were considerably smaller than those between the individual varieties. During raising, plants of 'Maris Fundin' and Zg 884/73, treated with GA3 and planted out without cutting back, headed 3.5-4.7 days earlier than the control. Data on yield components and plant height at maturity show that in practice plants raised from seedlings treated with GA3 are just as valuable for breeding as the control plants.

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