Home > Publications database > Assessment of plant density for barley and wheat using UAV multispectral imagery for high-throughput field phenotyping > print

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024 7 _ |a 10.1016/j.compag.2021.106380
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024 7 _ |a 0168-1699
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024 7 _ |a 1872-7107
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024 7 _ |a 2128/28632
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037 _ _ |a FZJ-2021-03286
041 _ _ |a English
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100 1 _ |a Wilke, Norman
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245 _ _ |a Assessment of plant density for barley and wheat using UAV multispectral imagery for high-throughput field phenotyping
260 _ _ |a Amsterdam [u.a.]
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520 _ _ |a Cereal plant density is a relevant agronomic trait in agriculture and high-throughput phenotyping of plant density is important for the decision-making process in precision farming and breeding. It influences the water as well as the fertilization requirements, the intraspecific competition, and the occurrence of weeds or pathogens. Recent studies have determined plant density using machine-learning approaches and feature extraction. This requires spatially very highly resolved images (0.02 cm) because the accuracy distinctly decreased when images had lower resolution. In this study, we present an approach that uses the linear relationship between plant density manually counted in the field and fractional cover derived from a RGB and a multispectral camera equipped on an unmanned aerial vehicle (UAV). We assumed that at an early seedling stage fractional cover is closely related to the number of plants. Spring barley and spring wheat experiments, each with three genotypes and four different sowing densities, were examined. The practicability and repeatability of the methodology were evaluated with an independent experiment consisting of 42 winter wheat genotypes. This experiment mainly differed for genotypes, sowing density and season.
536 _ _ |a 2173 - Agro-biogeosystems: controls, feedbacks and impact (POF4-217)
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700 1 _ |a Siegmann, Bastian
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700 1 _ |a Postma, Johannes A.
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700 1 _ |a Muller, Onno
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700 1 _ |a Krieger, Vera
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700 1 _ |a Pude, Ralf
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700 1 _ |a Rascher, Uwe
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773 _ _ |a 10.1016/j.compag.2021.106380
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|t Computers and electronics in agriculture
|v 189
|y 2021
|x 0168-1699
856 4 _ |u https://juser.fz-juelich.de/record/894570/files/Final_Version_angepasst_Review_Process-preprint.pdf
|y Published on 2021-08-18. Available in OpenAccess from 2023-08-18.
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