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一、有性繁殖有性繁殖是用种子播种获得实生苗的方法,又称为种子繁殖或播种繁殖。优点是繁殖量大,方法简便,实生苗根系发达,生长健壮,抗性强,寿命较长。但很多花卉不能保持品种的优良特性,产生不同程度的变异或退化,且开花结实较晚。种子繁殖法多用于一二年生草花和少部分多年生草花,木本植物砧木繁殖及育种也用此法。
First, sexual reproduction Sexual reproduction is the seed sowing method of obtaining seedlings, also known as seed breeding or sowing. Advantages of large breeding, the method is simple, seedling roots developed, robust growth, resistance, longer life expectancy. But many flowers can not maintain the fine characteristics of varieties, produce varying degrees of variation or degradation, and flowering and fruiting later. Seed propagation method used for a few biennial grass flowers and a small number of perennial grass flowers, woody plantstock breeding and breeding also use this method.