2020_Experiment_1
An early APPL experiment. Many of the RGB's are blank due to Color Segmentation issues. Partial metadata exists in the level0 directory
APPL↗
Engineering topics
Clark, Mindy
Publications and source records attributed to Clark, Mindy.
2020_Experiment_2
First successful experimental run of APPL from 2020. Demonstrates a raw RGB image, metadata, and a successful mask. A Poplar tree
APPL↗
3_Drought_Experiment_1
This is an early experiment in the APPL facility at ORNL looking at the effect of drought on various Populus genotypes. Nisqually-1, WV-94, BESC-394, BESC-198, BESC-24, BESC-375
APPL↗
Early_Commisioning_Data
This is very early commissioning data (2019) from the newly established APPL facility at ORNL. Instruments, and technologies are in active development at this stage.
APPL↗
Leveraging hyperspectral imaging to identify drought tolerant Populus species and genotypes within species
The aim of this study was to identity variation in drought tolerance across genotypes of Populus deltoides, Populus trichocarpa, and hybrids of the two species. A panel of 102 Populus genotypes, comprising 37 genotypes of P. trichocarpa, 37 of P. deltoides and 28 unique hybrid genotypes (P. trichocarpa x P. deltoides and P. deltoides x P. trichocarpa) were evaluated in the greenhouse under two treatments, well-watered (WW) and drought (DS). Plant physiological data were collected throughout the experiment once the drought treatment began. Throughout the experiment, we tracked soil volumetric water content, pot weight, stomatal conductance, quantum yield of photosystem II, and electron transport rate. In addition to those measurements, upon completion of the experiment, we assessed above and belowground plant biomass, plant height and stem diameter, leaf number, specific leaf area, relative water content, total protein, and total chlorophyll. We obtained hyperspectral signatures of one leaf from each plant at the end of the experiment. Columns BC – LL are hyperspectral averages for one leaf from each plant at each wavelength as described in the column header.
Hyper-spectral imaging, Populus, plant stress tole↗