倒挂金钟的繁殖方法
倒挂金钟的繁殖方法,倒挂金钟的繁殖以扦插繁殖为主,繁殖时间除休眠期外,几乎全年均可进行,而以2~4月及秋季10月最为适宜。当温度22~25℃时生根最快,约8~12天即可生根,而气温低于15。C时则需要月余生根。扦插苗当年或第二年开花,部分品种扦插后40天即现蕾开花。
扦插采用长穗插和短穗插均可,可结合整形修剪,视需要而定。长穗插即截取8~10厘米的枝条,剪去最下层芽节上的大叶,插入清洁的黄沙或蛭石中。短穗插以每个芽节为单位,即留一芽节,芽节上部平腋芽剪去,下部留1~3厘米剪下,插入清洁的介质中。
芽节部可略埋人介质里,叶芽微露于介质外。在插穗紧张时,采用短穗插,可节省插穗50%~70%,且生根成活后,株形小巧,开花别致。扦插后应控制湿度,不宜过湿,否则会引起烂苗,以上就是关于倒挂金钟的繁殖方法的介绍。
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