Chinese Cabbage Breeding
Chinese cabbage (B. rapa) types (Table 2.1) are as diverse as B. oleracea. Chinese cabbage is susceptible to almost all the pathogens, pests and environmental stresses affecting B. oleracea. Telekar and Griggs (1981) discuss issues of specific importance in the breeding of Chinese cabbage. The evolution of Chinese cabbage forms is shown in Fig. 1.6. Most types are readily cross-compatible. As with B. oleracea, hybrids have been made using self-incompatibility, but recently there has been an increasing interest in using male sterility, of both genic and cytoplasmic types.
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