| 摘要: |
| [目的]研究朱顶红(Amaryllis vittata)鳞茎切块繁殖方法,提高其繁殖能力.[方法]以国内外10个朱顶红品种为材料,研究了不同品种、鳞茎切块数量、鳞茎年龄、基质种类、基质含水量、切块时间等因素对朱顶红繁殖能力的影响.[结果]不同品种的朱顶红鳞茎切块繁殖率差异较大,自然繁殖率高的朱顶红,其鳞茎切块繁殖率也高.当鳞茎切成质量≥1.0 g的繁殖体培养时,成活率较高.鳞茎年龄对繁殖率有影响,1至2年生鳞茎切块繁殖率较高,多年生鳞茎相对较低;培养基质以蛭石、珍珠岩为好,含水量的大小对蛭石来说影响不大,而珍珠岩的含水量以体积分数9%为最好.切块最佳时期为12月份.[结论]朱顶红鳞茎切块繁殖是行之有效的繁殖方法,能明显提高其繁殖率.陕西关中地区每年12月份是朱顶红鳞茎繁殖的最佳时期. |
| 关键词: 朱顶红 繁殖方法 鳞茎繁殖 |
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| 基金项目:农业部“948”引进项目（2005-Z39） |
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| Study on the method of scale propagation of Amaryllis vittata |
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| Abstract: |
| 【Objective】 The study established an optimum method of scale propagation of Amaryllis vittata to improve its propagation.【Method】 Scale cutting method combined with different growth medias was used to evaluate the effect of slice number per bulb,bulb scale development stage,water content(v/v) and cutting time on the proliferation ability of the bulblet formation with 10 cultivars from domestic and abroad.【Result】 The best results were obtained for scale propagation when the bulb scale cut weights were not lees than 1.0 g.Vermiculite and pearlite ware fit for being culture medium.Water content(v/v) of vermiculite was 3%-18%,for pearlite 9% was the best respectively.There was significant difference of propagation results among varieties.With such scale propagation methods,higher efficiency could be got in the varieties in comparison with natural propagation.Development stage of the bulb affected the bulblets in the scale propagation,and the round bulb had higher scale propagation efficiencies and main bulb had lower one. 【Conclusion】 The scale cutting method was effective in the increase rate of these ornamental plants and December was the best time for scale propagation of Amaryllis vittata in Guanzhong area in Shaanxi. |
| Key words: Amaryllis vittata propagation method scale cutting |
