Skinner and Shive-lettuce Seed Germination3
نویسندگان
چکیده
germinated within 24 hours after prior exposure either to blue light or when maintained under complete darkness. However, far-red light augmented the germination of seeds pretreated with 6-benzylaminopurine so that nearly all such seeds germinated within 24 hours after treatment (table II). Far-red light also augmented the rate of germination of seed pretreated with a synergistic mixture of 6-benzylaminopurine and gibberellin. Lowering the temperature of germination to 250 C caused an appreciable increase in the rate of germination and augmented the synergistic effect of purines and gibberellin in combination. Such alternate stimuli for augmenting the same biological response could serve as protective mechanisms to insure germination of a certain percentage of seeds even under unfavorable environmental conditions.
منابع مشابه
Stimulation of Lettuce Seed Germination by 6-(Substituted) Purines.
Presoaking several varieties of seed, especially lettuce, in various 6(substituted) aminoand thiopurine solutions has been found to increase their rate of germination (3, 5, 6). Recently it was also reported that these purine derivatives are synergistic with gibberellin in inducing these biological responses whereas gibberellin alone was only moderately active in stimulating germination of Earl...
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