Abstract
IT has been shown that plants of Chrysanthemum morifolium ‘Sunbeam’ (incorrectly termed ‘Indian Summer’), raised from basal cuttings taken from parent plants grown and flowered at high temperatures, require a period of low temperature or vernalization in order that normal stem elongation and rapid flowering may occur. Without such a period of low temperature these plants grown in high temperature conditions (> 60° F.) fail to elongate normally and are considerably delayed in flowering1.
Published Version
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