UV reflectance in crop remote sensing: Assessing the current state of knowledge and extending research with strawberry cultivars

PLoS One. 2024 Mar 25;19(3):e0285912. doi: 10.1371/journal.pone.0285912. eCollection 2024.

Abstract

Remote sensing of spectral reflectance is a crucial parameter in precision agriculture. In particular, the visual color produced from reflected light can be used to determine plant health (VIS-IR) or attract pollinators (Near-UV). However, the UV spectral reflectance studies largely focus on non-crop plants, even though they provide essential information for plant-pollinator interactions. This literature review presents an overview of UV-reflectance in crops, identifies gaps in the literature, and contributes new data based on strawberry cultivars. The study found that most crop spectral reflectance studies relied on lab-based methodologies and examined a wide spectral range (Near UV to IR). Moreover, the plant family distribution largely mirrored global food market trends. Through a spectral comparison of white flowering strawberry cultivars, this study discovered visual differences for pollinators in the Near UV and Blue ranges. The variation in pollinator visibility within strawberry cultivars underscores the importance of considering UV spectral reflectance when developing new crop breeding lines and managing pollinator preferences in agricultural fields.

Publication types

  • Review

MeSH terms

  • Crops, Agricultural
  • Fragaria*
  • Plant Breeding
  • Remote Sensing Technology

Grants and funding

Natural Sciences and Engineering Research Council of Canada (NSERC) funded this project through the Uninhabited aircraft systems Training, Innovation and Leadership Initiative (UTILI) CREATE program to M.H. https://carleton.ca/utili. The Sponsors had no role in the study design, data collection, analysis, manuscript creation, or publication decision.