论文部分内容阅读
通过多年研究,取得比较成熟的桉树枝条扦插繁殖技术—即大棚内套小棚降温保温扦插繁殖技术。已扦插繁殖14个优良树种,42个无性系。14个优良桉树种:①尾叶桉E.urophylla②细叶桉E.tereticornis③刚果12号桉E.12ABL④巨尾桉E.grandis×E.urophylla,⑤尾巨桉E.urophylla×E.grandis,⑥杂交桉TH9117 E.urophylla×Camaldulensis⑦杂交桉TH9224E.urophylla×E.camaldulensis⑧杂交桉TH9211E.urophylla×E.tereticornis⑨杂交桉TH9113E.urophylla×E.tereticornis⑩斑皮桉E.maculata(11)雷林33E.leichow No33(12)柠檬桉E.citriodora(13)窿缘桉E.exserta(14)赤桉E.camaldulensis。刚果12号桉扦插生根率90％—96％,成苗率达88％—94％尾叶桉生根率在83％—90％,成苗率达81％—87％,除了窿缘桉,柠檬桉难于生根外,其他10种桉树生根率在73％—91％。采用舒根型黑色园型塑料管容器,轻型混合扦插基质椰糠+谷壳+黄心土、采穗圃枝条幼化处理后25～28天萌枝,控制小棚内相对湿度95％以上,对提高桉树枝条扦插生根率,形成良好平衡根系、促进根系,苗木生长具有重要作用。建立了桉树优树无性系对比试验林,从中初选一批适合海南生长的高产优良无性系刚果12号桉热研B号、尾叶桉9101、9401、细叶桉TH01、TR01、赤桉CP02、斑皮桉、杂交桉TH9113、杂交桉TH9224等。
Through years of research, more mature eucalyptus shoot cutting technology - that is, shed shed shed insulation shedding technology. Has cuttings breeding 14 excellent species, 42 clones. 14 excellent eucalyptus species: ① Eucalyptus E.urophylla ② Eucalyptus E.tereticornis③ Eucalyptus 12 Eucalyptus E.12ABL ④ E. grandis × E.urophylla E. ⑤ E.urophylla × E.grandis ⑥ Hybrid Eucalyptus TH9117 E.urophylla × Camaldulensis ⑦ Hybrid Eucalyptus TH9224E.urophylla × E. camaldulensis ⑧ Hybrid Eucalyptus TH9211E.urophylla × E.tereticornis ⑨ Hybrid Eucalyptus TH9113E.urophylla × E.tereticornis⑩ E. epidermidis E.maculata (11) Lei Lin 33E.leichow No33 (12) Lemon Eucalyptus E.citriodora (13) Eucalyptus E.exserta (14) Eucalyptus E.camaldulensis. Congo 12 Eucalyptus cuttings rooting rate of 90% -96%, seedling rate of 88% -94% Eucalyptus urophylla rooting rate of 83% -90%, seedling rate of 81% -87%, except for margin eucalyptus, lemon Eucalyptus difficult to root, the other 10 kinds of eucalyptus rooting rate of 73% -91%. Shugan black garden plastic tube container, light mixed cutting substrate coco chaff + chaff + yellow heart soil, sprouts branches shoots after 25 to 28 days after the shoots, control the relative humidity within the shed more than 95%, to improve Eucalyptus cuttings rooting rate, the formation of a good balance of roots, promote root and seedling growth has an important role. A comparative experimental forest of Eucalyptus superiority clones was established, and a batch of high yielding and excellent clones suitable for growing in Hainan was selected. Congo 12, Eucalyptus urophylla 9,091, Eucalyptus urophylla TH01, TR01, Eucalyptus grandis CP02 , Epidermis eucalyptus, hybrid eucalyptus TH9113, hybrid eucalyptus TH9224 and so on.