ABSTRACT
High quality seed of the cotton cultivar Delta Pine 20 were chilled for 0, 48, 96 and 192 hours at 10 C then germinated at 30 C. Seed that had begun germination within 24 hours and then at 48 hours were removed from each treatment and planted in pots in the greenhouse. Emergence, plant height up through 8 weeks, number of nodes per plant, number of squares per plant and primary root abortion were measured. There were no significant differences in any of these parameters due to chilling. Seed that germinated in 24 hours produced plants that grew faster through 7 weeks than plants from seed requiring up to 48 hours for germination. At 8 weeks there were no significant differences in plant height. There were no significant differences in number of nodes per plant. Plants from seed that germinated at 24 hours produced more squares per plant and had less aborted primary root, than plants from seed germinating at 48 hours.
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