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引用本文:周亚东,周有标,颜速亮,罗灿,戚江山,赵原森,吴繁花,于旭东.不同基质对美丽梧桐种子育苗的影响[J].热带生物学报,2013,4(4):322-326.
不同基质对美丽梧桐种子育苗的影响
Effects of Different Substrates on Seed Germination and Seedling Growth of Firmiana pulcherrima Hsue
  
DOI:
中文关键词: 美丽梧桐  基质  种子育苗
英文关键词: Firmiana pulcherrima Hsue  substrates  seed seeding
基金项目:海南大学教育教学研究课题立项项目(hdjy0920);海南省2012自然科学基金项目(312056)
作者单位
周亚东 1.海南省林业厅海南 海口 570203 
周有标 2.海南大学 农学院海南 海口 570228 
颜速亮 2.海南大学 农学院海南 海口 570228 
罗灿 3.海南大学 园艺园林学院海南 海口 570228 
戚江山 2.海南大学 农学院海南 海口 570228 
赵原森 2.海南大学 农学院海南 海口 570228 
吴繁花 2.海南大学 农学院海南 海口 570228 
于旭东 2.海南大学 农学院海南 海口 570228;3.海南大学 园艺园林学院海南 海口 570228; 4.海南大学 热带作物种质资源保护与开发利用教育部重点实验室海南 海口 570228 
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中文摘要:
      以美丽梧桐(Firmiana pulcherrima Hsue)的种子为材料,分别选用河沙、壤土、椰糠、河沙+壤土(1 ∶1)、河沙+椰糠(1 ∶1)、壤土+椰糠(1 ∶1)、壤土+椰糠+河沙(1 ∶1 ∶1)为基质,研究它们对美丽梧桐种子萌发和幼苗生长的影响。结果表明,以河沙为基质时,美丽梧桐种子的发芽率和发芽势最高,分别为55.6%和66.7%,但成苗率低,株高和根系生长受到抑制;以壤土为基质,美丽梧桐种子的发芽率和发芽势最低;以椰糠为基质,美丽梧桐成苗率高达61.1%。将河沙:椰糠:壤土按比例(1 ∶1 ∶1)混合后,美丽梧桐种子的发芽率、发芽势和成苗率均达到最优,株高和根系的生长状况良好,因此,河沙、椰糠、壤土按1 ∶1 ∶1比例混合可作为美丽梧桐种子最佳育苗基质。
英文摘要:
      Firmiana pulcherrima Hsue is a plant of genus Erythropsis in family Sterculiaceae, and it is of high ornamental value for landscaping in urban garden and greening. F. pulcherrima Hsue was cultured on seven different substrates: sand, loam, coconut coir, sand+ loam(1 ∶1), sand+ coconut coir (1 ∶1), loam+coconut coir (1 ∶1) sand+loam+coconut coir(1 ∶1 ∶1) to investigate the influence of the substrates on the seed germination and seeding growth of F. pulcherrima Hsue for selection of optimum substrate for F. pulcherrima Hsue. The results showed seeds cultured on the sand gave a germination rate and a germination vigor of up to 55.6% and 66.7%, respectively, but had a lower seedling survival rate with retarded seedling height and root growth; that the loam treatment gave the lowest seed germination rate and germination vigor; that the coconut coir treatment improved the seedling survival (as high as 61.1%), and that the mixed substrate sand+loam+coconut coir(1 ∶1 ∶1) had optimum seed germination rate and vigor and seedling growth rate with high seedling height and well developed roots. It is concluded that the mixed substrate is optimum for culture of seedlings of F. pulcherrima Hsue.
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