亚热带植物科学 ›› 2018, Vol. 47 ›› Issue (03): 281-285.DOI: 10.3969/j.issn.1009-7791.2018.03.019

• 植物组培与栽培 • 上一篇    下一篇

不同栽培措施下火炬松穗条产量的变化

冉洁,赵杨,肖枫   

  1. (1.贵州大学林学院,贵州 贵阳 550025;2.贵州省森林资源与环境研究中心,贵州 贵阳 550025)
  • 收稿日期:2018-05-30 修回日期:2018-06-27 出版日期:2018-09-30 发布日期:2018-09-30
  • 通讯作者: 赵杨
  • 作者简介:冉洁,硕士研究生,从事森林培育研究。
  • 基金资助:
    贵州省林业厅科技项目(黔林科合[2013])

Comparison of Cutting Yield of Pinus taeda under Different Managements

RAN Jie, ZHAO Yang, XIAO Feng   

  1. (1.College of Forestry, Guizhou University, Guiyang 550025, Guizhou China; 2.Institute for Forest Resources & Environment of Guizhou, Guiyang 550025, Guizhou China)
  • Received:2018-05-30 Revised:2018-06-27 Online:2018-09-30 Published:2018-09-30
  • Contact: ZHAO Yang

摘要: 以1年生火炬松Pinus taeda实生苗为材料,进行3因素(截干高度、施肥配方、种植密度)3水平L9(34)正交试验,分析不同栽培措施对穗条产量的影响。结果表明,春季促进穗条产量增加的优化组合为截干高度15 cm,施用农家肥,种植行间距50 cm×80 cm;夏季优化组合为施用农家肥+复合肥,截干高度15 cm,种植行间距为50 cm×80 cm;秋季优化组合为施用农家肥+复合肥,种植行间距50 cm×80 cm,截干高度为12 cm;冬季优化组合为施用农家肥,截干高度15 cm,种植行间距40 cm×50 cm;提高单株穗条年产量的优化组合为施用农家肥+复合肥,截干高度15 cm,种植行间距40 cm×50 cm。因此,在火炬松生长不同时期,选用不同的栽培措施有助于提高穗条产量。

关键词: 火炬松, 穗条产量, 正交试验, 采穗圃

Abstract: In order to build a high-yield cutting nursery of Pinus taeda, the 3-level L9 (34) orthogonal test was conducted. The results showed that the optimum combination of cutting yield in spring was 15 cm truncation height, row spacing of 50 cm × 80 cm; in summer, the optimized combination was farmyard manure + compound fertilizer, 15 cm truncation height, row spacing of 50 cm × 80 cm; in autumn, the optimized combination was farmyard manure + compound fertilizer, row spacing of 50 cm × 80 cm, and 12 cm truncation height; in winter, the optimum combination was farmyard manure, 15 cm truncation height, and row spacing of 40 cm × 50 cm. Improved combination of annual cutting yield was farmyard manure + compound fertilizer, 15 cm truncation height, and row spacing of 40 cm × 50 cm. Therefore, there should be used different management measures in different periods for increasing cutting yield of Pinus taeda.

Key words: Pinus taeda, cutting yield, orthogonal test, cuttings orchard

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