Abstract

The dissertation showcases the effectiveness of explainable machine learning approaches in studying plant ecophysiology and agriculture. It demonstrates the identification and prioritization of ecologically relevant traits using such methods in the genus Helianthus (wild sunflowers). Phenotypic differentiation and interspecific diversification are explored, as well as intraspecific trait variations within Helianthus annuus across different ecological regions. Additionally, the dissertation applies similar methods to assess the impact of historical weather patterns on the agricultural yield of cultivated sunflower at national and regional scales. It also provides yield forecasts under future socioeconomic scenarios, considering the potential effects of climate change on sunflower cultivation. Overall, this work highlights the potential of machine learning coupled with interpretable methods, in analyzing nonlinear and multidimensional biological data, addressing important research questions in plant biology, ecology, and agriculture. The findings contribute to understanding evolutionary predictability, ecological strategies, and the impact of climate change on crop yields.

Notes

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Graduation Date

2023

Semester

Summer

Advisor

Mason, Chase

Degree

Doctor of Philosophy (Ph.D.)

College

College of Sciences

Department

Biology

Degree Program

Integrative Conservation Biology; Integrative Biology

Identifier

CFE0009752; DP0027860

URL

https://purls.library.ucf.edu/go/DP0027860

Language

English

Release Date

August 2024

Length of Campus-only Access

1 year

Access Status

Doctoral Dissertation (Campus-only Access)

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Restricted to the UCF community until August 2024; it will then be open access.

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