高安第斯山林四种原生树种发芽前处理效果评价

Pedro Pablo Bacca, D. Burbano, A. Moreno
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引用次数: 0

摘要

安第斯高山森林是具有高度多样性的本土和特有植物的战略生态系统;然而,这些自然生态系统受到农业扩张的影响。有关本地植物繁殖的知识对于恢复这些环境至关重要。本研究的目的是评估以下本地物种的萌发:Viburnum triphyllum Kunt。(Caprifoliaceae), oreopax floribundum Kunth, (Araliaceae), Weinmannia tomentosa L.f. (Cunoniaceae),和Tournefortia fuliginosa Benth。(Boraginaceae)在boltana实验农场Nariño大学。本研究于2016年10月至2017年2月进行。每个物种均采用不受限制的随机分块设计。主样地为基质,次样地为不同发芽前处理,共3次重复。结果表明,不同萌发前处理的花菊发芽率差异有统计学意义。在22°C条件下,种子吸胀48小时,发芽率最高(42%)。在22°C和砂底条件下,吸胀48 h,毛毛小毛囊萌发率为74%,S和PM有统计学差异。T. fuliginosa无相关差异;但其发芽率为47%。V. triphyllum没有发芽;因此,需要对发芽前处理进行进一步的评价。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Evaluation of pre-germination treatments on four native species of the High Andean forest
High Andean forests are strategic ecosystems with high diversity of native and endemic plants; however, these natural ecosystems are affected by agricultural expansion. Knowledge on the propagation of native plants is essential to restore these environments. This research aimed to evaluate germination in the following native species: Viburnum triphyllum Kunt. (Caprifoliaceae), Oreopanax floribundum Kunth, (Araliaceae), Weinmannia tomentosa L.f. (Cunoniaceae), and Tournefortia fuliginosa Benth. (Boraginaceae) in Botana experimental farm of Universidad de Nariño. This study was conducted between October (2016) and February (2017). For each species, an unrestricted randomized split-plot design was established. The main plot included the substrates (S), and the sub-plots included the different pre-germination treatments (PM) with three repetitions. The results showed statistically differences in germination percentage among pre-germination treatments for O. floribundum. The highest germination percentage (42%) for this species was achieved with seed imbibition for 48 hours at 22°C. Moreover, W. tomentosa showed statistical differences for S and PM, with a germination percentage of 74% with imbibition for 48 h at 22°C and sand substrate. T. fuliginosa did not show relevant differences; however, it had a germination percentage of 47%. V. triphyllum did not germinate; therefore, further evaluations of pre-germination treatments should be required.
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