Preprints

Filtering by Subject: Agricultural Science

An open, scalable, and flexible framework for automated aerial measurement of field experiments

Christophe Schnaufer, Julian Pistorius, David Shaner LeBauer

Published: 2020-05-24
Subjects: Agricultural Science, Agriculture, Bioresource and Agricultural Engineering, Ecology and Evolutionary Biology, Engineering, Life Sciences, Plant Breeding and Genetics Life Sciences, Plant Sciences, Research Methods in Life Sciences, Terrestrial and Aquatic Ecology

Unoccupied areal vehicles (UAVs or drones) are increasingly used in field research. Drones capable of routinely and consistently capturing high quality imagery of experimental fields have become relatively inexpensive. However, converting these images into scientifically useable data has become a bottleneck. A number of tools exist to support this workflow, but there is no framework for making [...]

Canopy structure explains the relationship between photosynthesis and sun-induced chlorophyll fluorescence in crops

Benjamin Dechant, Youngryel Ryu, Grayson Badgley, Yelu Zeng, Joseph A. Berry, Yongguang Zhang, Yves Goulas, Zhaohui Li, Qian Zhang, Minseok Kang

Published: 2019-09-30
Subjects: Agricultural Science, Life Sciences, Physiology, Plant Sciences

Remote sensing of far-red sun-induced chlorophyll fluorescence (SIF) has emerged as an important tool for studying gross primary productivity (GPP) at the global scale. However, the relationship between SIF and GPP at the canopy scale lacks a clear mechanistic explanation. This is largely due to the poorly characterized role of the relative contributions from canopy structure and leaf physiology [...]

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