The growth rate of a plant is determined by its genetic capabilities, and its interactions with its surroundings. Calorimetric measurements of heat and CO2 rates were taken to determine how metabolism of oats changes with temperature. Growth rate and substrate carbon conversion efficiency are calculated from the respiration data. We plan to measure oxygen isotopes by mass spectrometry to determine the oxidative-phosphorylation pathways plants use to adapt to temperature. The results of the measurements will give a better understanding of how plants respond to stress, and what it is they do in their metabolism that allows them to make these changes.

Key words: Avena sativa L., Calorimetry, Growth, Metabolic, Oats, Pathways