Honors Senior Theses/Projects

Date of Award

6-30-2019

Type (DCMI Terms)

Text

Exit Requirement

Undergraduate Honors Thesis/Project

Department

Honors Program

Faculty Advisor

Ava Howard

Honors Program Director

Dr. Gavin Keulks

Language

eng

Abstract

Unlike many other organisms, plants have the ability to survive and even thrive with more than two sets of chromosomes, known as a condition called polyploidy. How this impacts the physiology of those plants is convoluted and needs further study. In my attempt to relate polyploidy to various water relations traits, I completed pressurevolume curves on plants within the blackberry family, Rubus Subgenus Rubus with ploidies ranging from 2-10. As supported by many previous studies, stomatal anatomy characteristics did vary significantly with ploidy. I also found that nighfme, but not daytime, water potential showed significant variation due to ploidy. There was not significant variaioon due to ploidy in any of the pressure-volume measurements studied. Addiioonal collecioon of gas exchange data would provide more insight into these results. These studies will begin to fill a knowledge gap that currently exists in plant physiology. Addiioonally, results from this research could aid current agricultural dilemmas, such as feeding the growing human populaioon in a changing climate.

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