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大花蕙兰离体快速繁殖方法

申请公布号:CN1247022A

申请号:CN99117041.5

申请日期:1999.08.20

申请公布日期:2000.03.15

申请人:
华南师范大学

发明人:史永忠;陈汝民

分类号:A01H4/00

主分类号:A01H4/00

代理机构:
华南理工大学专利事务所

代理人:罗观祥

地址:510631广东省广州市天河区石牌

摘要:本发明是大花蕙兰离体快速繁殖方法,其方法为:(1)在1~3月上旬,取大惠兰新芽,经灭菌,接种到固体培养基上,获得试管苗;(2)切去试管苗根系,取基部小切块,接种在固体培养基上培养约一个月,诱导出原球茎,将原球茎取下,在原部位继续产生新原球茎;(3)原球茎在液体和固体培养基上交替培养,快速增殖形成原球茎团;(4)将原球茎切开,转接到固体培养基上分化植株,再从基部切下,转接到固体培养基上培养约一个月,形成完整植株即可移载到大棚或温室。本发明成活率高、不受季节限制、效果稳定、成本低、出现变异机率小。

主权项:1、一种大花蕙兰离体快速繁殖方法,其特征在于其方法步骤为:(1)在1~3月上旬,取大花蕙兰新芽,经常规灭菌后,接种到基本培养基1/2MS+BA0.1~0.9固体培养基上萌发植株,获得无菌试管苗;(2)在无菌条件下,切去试管苗根系,取基部0.5~1.0cm小切块,接种在基本培养基1/2MS无激素或附加细胞分裂素0.1~0.3的固体培养基上培养25~35天,在切口处可诱导出原球茎,将原球茎取下,在原部位继续产生新的原球茎;(3)原球茎在1/2MS+BA0.1~0.6液体和固体培养基上交替培养,快速增殖形成桑果状的原球茎团;(4)将原球茎切开,转接到1/2MS+BA1.5~2.5+NAA 0.1~0.3+占总固体培养基4~6%的香蕉泥的固体培养基上分化植株,当小苗长至1.5~2.0cm时,从基部切下,转接到1/2MS无激素或附加NAA0.3~0.8固体培养基上培养25~35天,从试管苗基部产生1~5条粗壮根系,形成完整植株;(5)生根植株经过炼苗,即可移栽到大棚或温室。

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