Description

• Title:
  Winter Oilseed-Rape Yield Estimates from Hyperspectral Radiometer Measurements
• Creator:
  Piekarczyk, Jan;
  Sulewska, Hanna;
  Szymańska, Grażyna
• Description:
  Spectral reflectance data can be used for estimation of plant biophysical parameters such as seed yield, related to the use of solar energy. A field experiment was conducted to investigate relationships between canopy reflectance and seed yield of winter oilseed rape sown on four different dates. Ground hyperspectral reflectance measurements were made using a hand-held radiometer and multispectral images were taken with a VIS-NIR camera. The different sowing dates generated a wide range of difference in crop spectral response and seed yields. The strongest relationships (R2=0.87) between the yield and spectral data recorded by both sensors occurred at early flowering stages. Later, the presence of flowers caused a decline in the relationship between yield and spectral data especially in the visible (VIS) range. In the full flowering stage the strongest correlation (R2=0.72) with the yield showed vegetation indices of the near-infrared (NIR) bands.
• Object availability:
  free access
• Rights:
  Prawa autorskie (c) 2011 Jan Piekarczyk, Hanna Sulewska, Grażyna Szymańska
• Date:
  2011.03.22
• Type:
  info:eu-repo/semantics/article;
  info:eu-repo/semantics/publishedVersion;
  Recenzowany artykuł
• Language:
  English
• Source:
  Quaestiones Geographicae; Vol. 30 No. 1 (2011); 77-84;
  Quaestiones Geographicae; Tom 30 Nr 1 (2011); 77-84;
  2081-6383;
  0137-477X
• Format:
  application/pdf
• Publisher:
  Adam Mickiewicz University Poznan
• Relation: http://pressto.amu.edu.pl/index.php/qg/article/view/v10117-011-0007-z/29905
• Subject:
  Remote Sensing;
  ground hyperspectral measurements;
  winter oilseed rape;
  yield
• Identifier: http://pressto.amu.edu.pl/index.php/qg/article/view/v10117-011-0007-z
• Data provider:
  Platforma Otwartych Czasopism Naukowych UAM
• Can I use it?:
  seek permission
• Type:
  other