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长春花:幼苗具3对真叶时移栽到10cm盆,每盆3株。苗高7～8cm时摘心1次,以后再摘心2次,以促使多萌发分枝,多开花。一串红:新的矮生品种不必摘心,但由于国内用户大多喜欢大盆大株形的,所以仍需摘心1～2次。第1次摘心在小苗具3～4对真叶时进行,第2次摘心在新枝伸长后进行(留1～2对真叶)。
Catharanthus rosewood seedlings with 3 pairs of true leaves when transplanted to 10cm pots, 3 per pot. When the seedling height 7 ~ 8cm topping 1 time, then pick the heart 2 times, to promote more germination of branches, more flowering. A bunch of red: the new dwarf varieties do not have topping, but because most domestic users like large pots large shape, it is still topping 1-2 times. The first topping is performed on young shoots 3 to 4 of true leaves, and the second topping is carried out after new shoot elongation (leaving 1 to 2 pairs of true leaves).