Final Oral Examination for the Degree of Master of Science of Ryan Costello
Overview:
ANNOUNCEMENT: Interested Members of the University Community are invited to attend the Final Oral Examination for the Degree of Master of Science of
Ryan Costello
Of the Department of Plant Agriculture
On Monday, April 12 at 2:00 PM
Via Zoom Video Conferencing:
https://zoom.us/j/95299130239?pwd=VmtiQitBKzhMaDRkUWE4b1RpNnZRZz09
Meeting ID: 952 9913 0239
Passcode: 681005
Thesis Title: High-Throughput Phenotyping of Winter Wheat (Triticum aestivum L.) Survival and Plant Height
Advisory Committee Examination Committee
Dr. Elizabeth Lee, Co-advisor Dr. David Wolyn, Chair
Dr. John Sulik, Co-advisor Dr. Elizabeth Lee
Dr. Hugh Earl Dr. John Sulik
Dr. Eric Lyons
ABSTRACT
Proximal phenotyping of plant materials in the field takes immense time and resource commitments in breeding programs. Objectives of this research were to: 1) use spectral indices (SI) derived from unmanned aerial system (UAS) data to calculate a vegetation fraction used as a proxy for visual winter survival, 2) determine accuracy of SIs integrated over-time in identifying high-yielding wheat plots, 3) use UAS spectral data to build a digital surface model to extract plant height. Yield trials were planted over two years and the agronomic traits winter survival, plant height, grain yield, and growth stage were recorded. Our results indicated that survival could be accurately estimated using SIs and unsupervised image classification, SIs showed moderate ability to select the top yielding genotypes, and plant height can be accurately estimated from a single UAS flight. UAS derived phenotypic estimates of winter survival and plant height can replace manual measurements.