Combining air-layering and stem cutting techniques to optimize the production of quality planting materials for agroforestry tree species: a case study of Canarium schweinfurthii Engl. (Burseraceae)

IF 1.1 Q4 ENVIRONMENTAL STUDIES

Forests, Trees and Livelihoods Pub Date : 2022-07-03 DOI:10.1080/14728028.2022.2103034

G. Kanmegne, Raïssa S. Atchioutchoua, Gaston R. Tsopmbeng Noumbo

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Abstract

ABSTRACT Using Canarium schweinfurthii as biological model, the present study evaluated the potential of combining air-layering and stem cutting techniques to optimize the production of agroforestry trees’ propagules. Three substrates and five concentrations of indole butyric acid (IBA) were tested for their effects on the rooting of air-layers. Stockplants were raised from air-layered propagules and used for stem cutting trial. Three levels of stockplant irradiance and five IBA concentrations were tested for their effects on the rooting of stem cuttings. Results showed that the combination of Sawdust substrate and 5 g/l IBA resulted in highest percentage of rooted layers (79.3 ± 7.6%) and highest number of roots per rooted layer (34.9 ± 0.7). Sawdust recorded the lowest layers’ mortality rate (6 ± 1.9%). Alive cuttings sprouted and rooted at 100%. The lowest mortality rates of cuttings (14 ± 4.8%) and the highest number of roots per rooted cutting (25.5 ± 0.1) were recorded with 10 g/l IBA × 50% ambient sunlight treatment combination. Using air-layered propagules for stockplant production could make it easy to achieve stockplant management practices like shading. Combining air-layering and stem cutting techniques enhanced the multiplication rate of propagules. This provides valuable insights for tree domestication practices worldwide.

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结合空气分层和茎切技术优化农林业树种优质种植材料的生产——以Canarium schweinfurthii Engl为例(橄榄科)

摘要本研究以金丝雀为生物模型，评价了空气分层和树干切割技术相结合优化农林树木繁殖体生产的潜力。试验了三种基质和五种浓度的吲哚丁酸（IBA）对空气层生根的影响。放养植物由空气分层繁殖体培育，并用于茎干切割试验。试验了三个水平的砧木辐照度和五个浓度的IBA对茎插条生根的影响。结果表明，木屑基质与5g/l IBA组合，生根率最高（79.3±7.6%），每根层根数最高（34.9±0.7），枯死率最低（6±1.9%），活插穗发芽生根率为100%。10克/升IBA×50%环境光照处理组合的插穗死亡率最低（14±4.8%），每根插穗生根数最高（25.5±0.1）。使用空气分层繁殖体进行畜牧业生产可以很容易地实现畜牧业管理实践，如遮荫。空气分层和茎切技术相结合提高了繁殖体的繁殖率。这为世界各地的树木驯化实践提供了宝贵的见解。

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来源期刊

Forests, Trees and Livelihoods Agricultural and Biological Sciences-Forestry

CiteScore

2.20

自引率

0.00%

发文量

期刊介绍： Forests, Trees and Livelihoods originated in 1979 under the name of the International Tree Crops Journal and adopted its new name in 2001 in order to reflect its emphasis on the diversity of tree based systems within the field of rural development. It is a peer-reviewed international journal publishing comments, reviews, case studies, research methodologies and research findings and articles on policies in this general field in order to promote discussion, debate and the exchange of information and views in the main subject areas of.