<abstract xml:lang="en" xmlns="http://www.w3.org/1999/xhtml">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.</abstract>

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.

Winter Oilseed-Rape Yield Estimates from Hyperspectral Radiometer Measurements

Institute of Physical Geography and Environmental Planning, Adam Mickiewicz University, Poznań, Poland

Department of Soil and Plant Cultivation, University of Life Science, Poznań, Poland

Quaestiones Geographicae

{"article-title":"Winter Oilseed-Rape Yield Estimates from Hyperspectral Radiometer Measurements"}

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...

Winter Oilseed-Rape Yield Estimates from Hyperspectral Radiometer Measurements

Publié en ligne: 22 mars 2011

Pages: 77 - 84

DOI: https://doi.org/10.2478/v10117-011-0007-z

Mots clés
Remote Sensing, ground hyperspectral measurements, winter oilseed rape, yield

This content is open access.

Winter Oilseed-Rape Yield Estimates from Hyperspectral Radiometer Measurements

Publié en ligne: 22 mars 2011

Pages: 77 - 84

DOI: https://doi.org/10.2478/v10117-011-0007-z

Mots clésRemote Sensing, ground hyperspectral measurements, winter oilseed rape, yield

This content is open access.

Mots clés
Remote Sensing, ground hyperspectral measurements, winter oilseed rape, yield