Interactive Effects of Root-Promoting Treatments and Media on Clonal Propagation of Two Western Pine Species
Abstract
Dougl. ex C. Lawson) remain limited. This multi-year greenhouse study (2024-2025) used a split-plot greenhouse design to evaluate interactions among four rooting media and various root-promoting treatments, including commercial mixed microbial/biostimulant products and indole-3-butyric acid (IBA). Coconut coir consistently outperformed other media, achieving rooting rates of up to 80% when combined with specific commercial products like Mykos, Dynomyco, or Wildroot. Seasonal timing also proved crucial; winter propagation (January 2025) yielded poor results (
Fields of Study & Subjects
Seedling growth and survival studies
Plant tissue culture and regeneration
Growth and nutrition in plants
Publication details
- Journal / source
- Plants
- Publisher
- MDPI AG
- Volume
- 15
- Issue
- 2
- Pages
- 237–237
- Publication date
- 13 January 2026
- Language
- EN