**5. Conclusions**

Plants adapt to light signals by adjusting photosystem stoichiometry. In monochromatic red light, this reduces photosynthetic capacity of the plant under broad spectra and saturating light conditions. However, this stoichiometric imbalance is not seen in spectra containing blue light and is partially remediated by spectra containing green light. Despite this observance under saturating light conditions, monochromatic green light had lower net photosynthesis rates than monochromatic red light under ambient conditions. Never-

theless, other factors, such as morphological adaptations like height, leaf area, and SLW seem to drive biomass accumulation as much or more than net photosynthesis per unit leaf area, given that plants grown under monochromatic blue light were tied for lowest ambient net photosynthetic rate with monochromatic green light, but the B treatment produced more massive plants than the GB, R, and RB treatments which all had higher net photosynthesis under ambient conditions than the B treatment plants.

**Author Contributions:** Conceptualization, N.B.C.; methodology, N.B.C.; validation, N.B.C.; formal analysis, N.B.C.; investigation, N.B.C.; resources, J.H.L.; data curation, N.B.C.; writing—original draft preparation, N.B.C.; writing—review and editing, N.B.C. and J.H.L.; visualization, N.B.C.; supervision, N.B.C.; project administration, N.B.C.; funding acquisition, J.H.L. All authors have read and agreed to the published version of the manuscript.

**Funding:** Undergraduate interns were funded by The Robert and Lien Chen Family Foundation.

**Institutional Review Board Statement:** Not applicable.

**Informed Consent Statement:** Not applicable.

**Data Availability Statement:** Data are available upon request.

**Acknowledgments:** We would like to thank student assistants Hannah Vahldick, Howard Tan, and Hala Alsaid for their help setting up the experiment and collecting data, and Sophia Belvoir, Makenzie Salyer, Jorge Rodriguez, and Shaokun Meng for their help collecting data.

**Conflicts of Interest:** The authors declare no conflict of interest. The funders had no role in the design of the study; in the collection, analyses, or interpretation of data; in the writing of the manuscript, or in the decision to publish the results.
