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中国农学通报

中国农学通报 ›› 2012, Vol. 28 ›› Issue (7): 185-189.

• 林学 园艺 园林 • 上一篇    下一篇

金莲花种子萌发特性研究

王玄 袁思安 张建军 赵红霞 吕晋慧   

  • 收稿日期:2011-10-28 修回日期:2012-01-12 出版日期:2012-03-05 发布日期:2012-03-05

Study on Germination Characteristics of Trollius chinensis Seeds

  • Received:2011-10-28 Revised:2012-01-12 Online:2012-03-05 Published:2012-03-05

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摘要：

以金莲花种子为材料，就不同GA3浓度和处理时间、沙藏时间、温度和基质等对金莲花种子萌发的影响进行研究，旨在建立金莲花种子萌发的栽培技术体系，为金莲花引种驯化和栽培管理提供理论依据和实践技术。试验结果表明：（1）4℃沙藏或GA3处理可有效打破休眠，其中4℃沙藏40~50天或150 mg/L GA3处理种子3~4 天，250 mg/L GA3处理种子2~4 天和350 mg/L GA3处理2天均可有效解除休眠。（2）温度显著影响金莲花种子的萌动时间、发芽率和幼苗生长。其中30℃和30℃以上高温严重抑制金莲花种子的萌动和幼苗生长。10℃低温延缓种子萌动，15℃、20℃是金莲花种子萌发和幼苗生长的最适宜温度，25℃也有较好的促进作用。（3）基质影响金莲花种子的萌发。不同基质中金莲花种子出苗率由高到低依次为沙＞混合基质1（沙和园土按2:1混合）和腐叶土＞混合基质2（沙和园土按1:2混合）。

关键词: 综合评估, 综合评估

Abstract:

To provide the theory and practical technology for introduction, domestication and cultivation of Trollius chinensis Bunge, the effects of the treatment time of different concentrations GA3, storage time in 4℃, different temperature and soil matrix on germination of T. chinensis seeds were researched. The results showed that: (1)The dormancy of T. chinensis seeds were broken at 4℃ temperature in sands or GA3 treatments. 40～50 days was the best time to relieve Trollius chinensis seeds dormancy in sands at 4℃ temperature. The treatment of 150 mg/L GA3 for 3-4 days, 250 mg/L GA3 for 2-4 days and 350 mg/L GA3 for 2 days were the better way to relieve dormancy. (2)The germinating time, gemination rate and growth of seedlings were influenced by different temperature. It was suppressed by 30℃ or higher than 30℃ and was delayed by 10℃; 15℃ and 20℃ were the most suitable temperature and which were also promoted by 25℃. (3)Different soil matrix influenced geminination of Trollius chinensis seeds. The germination rate were sands＞mixture ground mass one（mixture of sands and soil by 2:1 , leaf mold＞mixture ground mass two（mixture of sands and soil by 1:2）respectively.

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