Studies in Morphogenesis of Brassia oleracea L.: II. THE COMPARATIVE MORPHOLOGY OF TYPICAL HEADING-TYPE CABBAGE PLANTS AND NON-HEADING ROGUES

Non-heading rogue plants of January King cabbage have as manyleaves, and as short vegetative axes, as typical heading plants.Leaves of rogues are generally narrower than those of a correspondingage from headed plants sampled in the same crop, and their drymatter content is higher. Rogue plants of January King sampledin the winter had more advanced flower development than headedplants. The significance of these differences for the explanationof the phenomenon of heading is discussed.