Investigating light spectrum effects of LED inter-canopy lighting in greenhouse cucumber

Vine crops, specifically tomatoes and cucumbers, represent one of the largest segments for electric lighting in horticultural applications. Furthermore, cultivators are constrained by inadequate lighting conditions during winter months and high operating costs for traditional lighting systems. LED lighting systems are becoming increasingly efficient and cost‐effective, yet understanding of spectral effectiveness within PAR and beyond requires further investigation. In this study we aim to assess the effectiveness of several light recipes in the context of inter-canopy lighting. The objective of this study is to evaluate the effects of different light spectra in inter-canopy lighting on growth and development in greenhouse cucumber production.

Used skills

Multiple sub-topics can be chosen and/or combined within this thesis, including (but not limited to):

  • Growth and yield component analysis
  • Destructive harvests
  • Photosynthesis
  • Light interception
  • Light distribution and spectral changes in the canopy

Interested in doing a BSc or MSc thesis at HPP? Please contact the HPP student coordinator Katharina Hanika.