自然界中的生物普遍存在遗传和变异,花卉也不例外。生物的变异是多种多样的,有了变异就有了选优的可能,就能促进物种进化,园林花卉植物中的自然变异,对提高花卉的观赏价值具有重要意义,现代园林绿化中广泛地应用植物有益的遗传和变异,定向培育繁殖新性状的个体,能有效地提高绿化和美化的艺术效果。引起自然变异的原因多数是环境条件所致,如温度、紫外线等。由于长期的反复作用,导致物种的遗传基础发生了变动而产生了变异。 There are ubiquitous heredity and variation in nature and flowers are no exception. Biological variation is diverse, with the mutation has the possibility of optimization, will be able to promote the evolution of species, natural variation in the garden flowers and plants, to improve the ornamental value of flowers is of great significance in modern landscaping Applying beneficial genetic and variation of plants and orienting individuals to propagate new traits can effectively improve the artistic effect of greening and landscaping. Most of the causes of natural variation caused by environmental conditions, such as temperature, UV and so on. Due to the long-term repeated effects, resulting in changes in the genetic basis of species have mutated.