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大白菜分枝性强,为复总状花序,具有无限生长习性,其花数多、花期长,雌蕊属多胚珠型,增产潜力较大。为了探讨北京地区早熟大白菜种子产量形成的主要因素,我们于1982—1985年对部分早熟大白菜的开花与结荚习性进行了研究。以期指导早熟大白菜繁种及杂种一代的配制,提高种子的产量及质量。材料与方法本试验所用的材料采用经过纯化的北京早熟大白菜自交不亲和系的小株。试验材料有“双小”、“长小”等5个株系及3个杂种。 1983、1984年两年春季都用同一代的“双小”、“长小”早熟大白菜各4株作试
Chinese cabbage is highly branched, complex constricted inflorescence, with unlimited growth habits, the number of flowers, long flowering period, pistil is a multi-ovule, yield greater potential. In order to investigate the main factors affecting the seed yield of early-maturing Chinese cabbage in Beijing, we studied the flowering and pod habit of some precocious Chinese cabbage in 1982-1985. With a view to guide the breeding of precocious cabbage and hybrid generation preparation, improve seed yield and quality. Materials and Methods The materials used in this experiment were purified from small, self-incompatible lines of Chinese early-maturing Chinese cabbage. The test materials are “double small”, “long” five strains and three hybrids. The spring of 1983 and 1984 both use the same generation of “double small”, “long” precooked cabbage each 4 for trial