PhD defence

Photobiology of Medicinal Cannabis: Pharmaceutical Compounds and Crop Morphology

PhD candidate ir. MMSF (Mexx) Holweg
Promotor prof.dr.ir. LFM (Leo) Marcelis
Co-promotor dr.ir. E (Ep) Heuvelink
Organisation Wageningen University, Horticulture & Product Physiology Group
Date

Fri 11 July 2025 15:30 to 17:00

Venue Omnia, building number 105
Hoge Steeg 2
6708 PH Wageningen
+31 (0) 317 - 484500
Room Auditorium

Summary

This research looks at how growing conditions, especially light and temperature, affect how plant morphology, photosynthesis, and inflorescence- and pharmaceutical compounds yield. The focus is on parts of the plant that are most valuable, like flowers that contain cannabinoids and terpenes. The study explores how different wavelengths and intensities of light, temperatures, and growing methods influence plant morphology, root development, and the chemical composition of the flowers. Special light types, like LED and UV, were tested to see how they affect growth and chemical production. The findings can help growers produce more consistent, high-quality cannabis while using resources like energy more efficiently. This is especially important for medical use, where quality and consistency are key. The research also shows that plant age, genetics, and growing conditions all interact to influence final results.