SRA

To characterize plant growth in net zero energy greenhouse models covered with semi-transparent organic solar cells (OSCs), RNA was extracted from tomato leaf tissue. Six experimental treatments were created with three OSC filters: FTAZ:IT-M, PTB7-Th:IEICO-4F, FTAZ:PCBM. Boxes with either a clear glass cover or a spectrally-neutral cover were used as the high light (HC) control and the comparative light intensity (PC) control, respectively. These treatments were divided into 2 experiments. 4 treatments (3 OSC boxes and control) had a consistent light intensity and were called the PPFD Controlled (PC) experiment. The other 4 treatments were the Height Controlled (HC) experiment and had more variation in light intensity between treatments due to a consistent distance from the growth chamber light source (height). Plants in the FP_PC treatment flowered one day later than the PC control. FI_PC flowered one day earlier. Gene expression in samples from the FP_PC treatment had a distinct pattern related to flowering initiation. Overall design: Leaf tissue was sampled from 4 individual plants grown under one of eight light spectra and intensity conditions. Samples were collected under growth conditions.