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所谓寒(冬)菊,是指无需光照处理(一般菊花须用长、短日照控制花期,才能冬季开花),在自然光照下即能于冬季开放的菊花。这是辽宁农科院原子能所花卉室近年来研究出的新成果。他们在选育寒菊时采用了以下方法: 1.辐射诱变育种用钴~(60)γ射线对一些品种进行辐射处理(辐射对改变生于期、花期最有效),将花色、花期发生变异的植株移人温室保留。次年对其中能在12月～2月开花的M1代再次辐射处理。然后将用被处理植株的脚芽繁殖的无性系于9月在温室扦插,选
The so-called cold (winter) chrysanthemum, refers to without light treatment (usually chrysanthemum with long, short day to control flowering in order to winter flowering), in natural light that is, open in winter chrysanthemum. This is the Liaoning Academy of Agricultural Sciences Atomic Energy Flower Room in recent years to study the new achievements. They used the following methods when selecting Hanju: 1. Radiation Mutation Breeding Radiation treatment of some varieties with cobalt ~ (60) γ-rays (radiation was the most effective for changing the stage of birth and the stage of flowering), the flower color and flowering period were changed The plants are kept in the greenhouse. In the following year, the M1 generation which can bloom in December-February is radiated again. Then the clones that had been propagated with the foot buds of the treated plants were cut and selected in the greenhouse in September