| 王肖颖1，罗 敏1，覃 冀1，刘晚传1，潘庆优1，曾令海2，3，张 谦2，3，蔡燕灵2，3.高脂马尾松优树无性系生长量及产脂力测定[J].广东农业科学,2016,43(8):58-62 |
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高脂马尾松优树无性系生长量及产脂力测定 |
| Growth and resin-yielding capacity determination of plus-tree clones of Pinus Massoniana |
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| DOI：10.16768/j.issn.1004-874X.2016.08.010 |
| 中文关键词: 马尾松 生长 产脂力 无性系选择 重复力 |
| 英文关键词: Pinus massoniana growth resin-yielding capacity clone selection repeatability |
| 基金项目:广东省林业科技创新专项（2015KJCX012） |
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| 摘要点击次数: 1916 |
| 全文下载次数: 197 |
| 中文摘要: |
| 对20 年生高脂马尾松种子园中的优树嫁接无性系的生长性状和产脂力进行测定分析，结果表明，树高、胸径、材积和产脂力在参试无性系间均存在极显著差异，且各个性状的无性系重复力估计值均较高（0.860～0.919）；材积和产脂力均大于参试群体平均值的优良无性系有8 个，平均树高、胸径、材积和产脂力分别为11.14 m、28.28 cm、0.31780 m3 和34.61g/d，树高、胸径、材积和产脂力的期望增益分别达到3.26%、11.69%、25.70% 和30.93%，增产效益显著。 |
| 英文摘要: |
| The growth traits and resin-yielding capacity of grafted clones of plus trees were determined and analyzed at the age of 20 in the high-resin-yield Masson pine orchard. The results indicated that all the growth traits，including height（ HT），diameter at breast height（ DBH） and stem volume（ VOL），and the resin-yielding capacity （RYC） varied significantly（ P<0.01） among clones. Furthermore，these traits consistently had a high（ 0.860–0.919） repeatability estimate（ broad-sense heritability）. When selection was made for growth and resin-yielding capacity，8 clones were identified，with VOL and RYC were both higher than the average value of the tested group. The mean HT，DBH，VOL and RYC of these selected clones were 11.14 m，28.28 cm，0.31780 m3 and 34.61 g/d respectively，and the expected genetic gains were 3.26% for HT，11.69% for DBH，25.70% for VOL，and 30.93% for RYC. |
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