Germination rate of pepper ( Capsicum annuum L.) seed was reduced and germination became less uniform as temperature was lowered from 25° to 15°C. There was no evidence of a leachable or extractable germination inhibitor being activated or formed during the exposure to low temperature. Auxin and kinetin applications did not alter germination rates, but gibberellins (GA 3 and GA 4+7 ) increased germination rates. GA 4+7 was slightly more effective than GA 3 in stimulating a germination rate increase. AMO 1618 effectively reduced germination rates.
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Watkins et al. (1983) studied this question.
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