【摘要】 作者用整体解剖法,对欧州油菜花原基分化过程进行研究,发现油菜花器分化为向心分化,而与户苅义次等人提出的分化顺序不一致。作者发现的油菜各轮花器分化顺序为:花萼、花瓣、外轮雄蕊、内轮雄蕊、心皮。外轮雄蕊原基发育成短雄蕊,内轮雄蕊原基发育成长雄蕊。油菜花原基分化的实际过程并不像户苅义次等人报告的那样:雄蕊和心皮分化在花辦分化之先,甚至4枚长雄蕊是由2枚雄蕊原基分裂变来的。更多还原

【Abstract】 Gross anatomical studies on the differentiation of floral primordium in rapeplant(Brassica napus L.)were made.It was found that the order of appearanceof the various cycles of floral organs agreed with the usual centripetal succes-sion,which was quite different from what was suggested by Dr.Yosizi Togariand others.In our studies,we found that the various whorls of the floral organin rape appeared in the order of sepals,petals,outer cycle stamens,inner cyclestamens and carpels.The short stamens developed from outer cycle stamens,andthe long stamens developed from inner cycle stamens.Dr.Yosizi Togari andothers reported that the differentiation of stamens and carpels appeared beforethat of petals and the two stamen primordia were divided into four stamens.Wedon’t think that to be the real case.更多还原