我们常可以看到,有些栽培了多年的山茶花,树高达1米以上,树上仍不见一个花芽。但常见的扦插苗、嫁接苗有的苗高仅20—30厘米,却见含苞待放,这是什么原因呢? 一般木本植物的实生苗只有经过旺盛的营养生长的幼年阶段,才能够变为有开花能力的成年阶段,而在幼年阶段要诱导其开花,是不可能的。幼年阶段的时间因植物种类而异,少则1—2年,多则好几年,甚至几十年。 We can often see that some camellia cultivated for many years, trees up to 1 m above the tree still do not see a flower bud. However, the common cuttings, grafted seedlings and some seedlings only 20-30 cm, but see the budding to be put, what is the reason? Genus woody plants generally only after vigorous vegetative growth in early childhood, can change It is impossible for a flowering adult stage to induce its flowering at a young age. The timing of juvenile stage varies according to plant species, ranging from 1 to 2 years, up to several years or even decades.