花卉不仅是大自然赐予人类的艺术品,而且是科学技术的结晶。一般花卉是采用有性繁殖和无性繁殖的。在自然条件下由于植物本身的遗传和变异,会出现一些新的品种,但自然的变异率很低。由于近代生物遗传研究的不断深入,人们不再等待大自然的恩赐,而是采用人工杂交育种的方法,获得新的品种。随着原子核科学技术的发展,人们又应用核辐射诱发突变方法来培育新品种。早在1936年,荷兰蒂摩尔应用X射线照射郁金香的鳞茎,到1949年 Flower is not only the artwork that nature gives to mankind, but also the crystallization of science and technology. The general flower is the use of sexual reproduction and asexual reproduction. Under natural conditions, some new varieties will emerge due to the inheritance and variation of the plants themselves, but the natural variation rate is very low. Due to the continuous deepening of research on biological genetics in modern times, people no longer wait for the gift of nature. Instead, they use artificial hybrid breeding methods to obtain new varieties. With the development of nuclear science and technology, people also apply the method of nuclear mutation induced mutation to cultivate new varieties. As early as 1936, Timor of the Netherlands applied X-rays to the bulbs of tulips until 1949