| 摘要: |
| 针对柚木造林后受台风影响易出现干型不佳、生长缓慢等问题，以 12 年生柚木不同无性系测定林为研究对象，对其截干后的萌芽与生长特征进行分析，结果表明：不同无性系截干后萌芽数、萌条基径和高度差异显著，8 月、10 月和次年 1 月份间生长也有较大差异；地径与萌条基径和高度呈显著正相关关系，萌芽数与萌条基径和高度呈正相关关系，萌条基径与高度呈极显著正相关关系。综合分析表明无性系 VI-23 截干后生长最快，10 个月生萌条胸径和高度分别可达 2.52 cm 和 3 m。 |
| 关键词: 柚木 截干 复壮 萌芽更新 |
| DOI： |
| 分类号: |
| 基金项目:国家推广项目 (2020133113)。 |
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| Study on Germination and Growth of Different Teak Clones |
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Lu Mei1, Chen Yifei1, Huang Guihua2, Wang Xianbang2, Liang Kunnan2, Han Qiang2, Zhou Zaizhi2
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1.Guangdong Maoming Forest Park Administration office;2.Research Institute of Tropical Forestry, Chinese Academy of Forestry
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| Abstract: |
| In order to solve the problems of poor dry shape and slow growth of teak after afforestation affected by the typhoon, different 12-year-old teak clones were taken as the research object, and the sprout growth characteristics were analyzed after truncated. The results showed that there were significant differences in bud number, bud base diameter and sprout height between different clones after truncated, and there were also great differences in growth between August, October and January. There was a significant positive correlation between the diameter of ground before truncated and the diameter and height of sprout strips, the number of germination and the diameter and height of sprout strips, and a significant positive correlation between the diameter and height of sprout strips. Comprehensive analysis showed that clone VI-23 grew the fastest after truncated, with DBH and height reaching 2.52 cm and 3 m, respectively, 10 months after truncated. The results could guide the truncated and regeneration of teak plantations, and provide a theoretical basis and data support for the screening and application of fast-growing and excellent varieties. |
| Key words: teak truncated rejuvenation coppicing regeneration |
