## 2 Materials and Methods
### Analysis of Total Phenols  
TPC was measured using the Folin-Ciocalteu phenol method [39] with some modifications. Plant samples (10 \(\upmu\)L each) were added to 2% Na\({}_{2}\)CO\({}_{3}\) (200 \(\upmu\)L) and mixed for 3 min in a 96-well plate. The mixture was reacted with 1 mol/L Folin-Ciocalteu phenol (10 \(\upmu\)L) for 27 min at room temperature, after which absorbance was measured at 750 nm with a spectrophotometer (Bio-Tek Instruments, Winooski, VT, USA). The TPC was then calculated using a calibration curve; gallic acid was used as the standard, and the results were expressed as mg GAE (gallic acid equivalents) per g of dried weight.  
Identification of Rosmaritic Acid by Ultra-Performance Liquid Chromatography with Tandem MS (UPLC-MS/MS)  
UPLC-IQ-MS/MS was performed on an Agilent 1290 Infinity II LC system (Agilent, Waldbronn, Germany) coupled with an Agilent 6470 B Triple Quadrupole instrument. The injection volume was set as 1 \(\upmu\)L and an injected sample was carried out at a column temperature of 45 \({}^{\circ}\)C on a YMC-Triart C18 column (100 \(\times\) 2.0 mm I.D. S-1.9 \(\upmu\)m, 8 nm). The mobile phase consisted of water containing 0.2% formic acid (A) and acetonitrile containing 0.2% formic acid (B). The flow rate of the mobile phase was set to 350 \(\upmu\)L/min and a gradient system was applied for analysis. In the initial point, the B ratio was 10% and it was maintained for 1 min. The B ratio was increased to 40% at 8 min and 50% at 20 min. Finally, the B ratio was increased to 100% at 40 min and for column washing, there was a 2 min post-run. The detection wavelength was set at 280 nm and the detected peaks were proposed by TQ-MS/MS analysis.  
\begin{table}
\begin{tabular}{l c c c c c c} \hline \hline \multirow{2}{*}{**Cultivation Period**} & \multirow{2}{*}{**Date**} & \multicolumn{3}{c}{**Temperature**} & \multirow{2}{*}{**RH 1 (\%)**} & \multirow{2}{*}{**CO\({}_{2}\) Conc. (ppm)**} \\ \cline{3-3} \cline{5-6}  & & **Mean. (\({}^{\circ}\)C)** & & & & \\ \hline
30–40 DAS & 12–21 February & 18.7 & 30.2 & 14.0 & 50.6 & 439.8 \\
40–50 DAS & 22 February–31 March & 18.7 & 30.1 & 15.3 & 53.1 & 430.1 \\
50–60 DAS & 4–13 March & 19.6 & 31.1 & 15.1 & 51.0 & 425.2 \\
60–70 DAS & 14–23 March & 20.5 & 32.0 & 12.6 & 50.6 & 414.1 \\
70–80 DAS & 24 March–2 April & 19.9 & 29.5 & 14.5 & 55.0 & 428.7 \\ \hline \hline \end{tabular}  
* relative humidity.  
\end{table}
Table 1: Climate data of the greenhouse during the experiment controlled with actuator equipment and monitoring system.  
An Agilent 6470B Triple Quadrupole instrument was applied to MS and MS/MS detection. The operation conditions were set as follows: drying gas (N\({}_{2}\)) flow rate, 7 L/min; drying gas temperature, 325 \({}^{\circ}\)C; nebulizer, 25 psi; sheath gas flow rate, 7 L/min; sheath gas temperature, 250 \({}^{\circ}\)C; capillary, 3500 V; fragmentor, 135 V; collision energy, 25 V; scan mode, MS scan, and production mode; mass spectra recorded range, \(m/z\) 100-1000 at negative mode. Agilent Mass Hunter Workstation Acquisition Software Version B.05.01 and Qualitative Analysis Software Version B.07.00 were utilized for data acquisition and data processing.