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菊花是怎样发芽
更新时间: 2020-10-21 00:00:00  

1,选择疏松透气的土壤(一般选择细粒草炭土或腐叶土),装入花盆或播种盘;

2,将土壤浇透水,将种子均匀撒在土层上;

3,细粒种子播种时不需要盖土但要保证土壤湿度;大粒种子则要盖土,盖土厚度为种子直径的两到三倍,播种后必须保证土壤湿润但不积水,在种子出芽前不能缺水,这对于细粒种子更加重要。

4,大多数种子的发芽适宜温度都是20到25℃,春季播种如果达不到可以通过覆盖保鲜膜,加盖玻璃等以便保温保湿。夏季播种要将播种盆放在阴凉湿润处,要遮阴遮雨。

5,加盖保鲜膜的种子发芽后要及时掀开一角通风,待长到2至3片叶子是即可全部除去薄膜,让小苗逐渐接受散射光照,注意不是放在太阳下晒。小苗长到五到六片叶子时即可移栽定植。 菊花播种繁殖变异性很大,除了培育新品种外一般不采用,若要保证亲本的优良特征还是选择扦插、分株、嫁接、组织培养等方法繁殖。

关键词: 菊花 怎样 发芽

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