. 2023 Sep 20;194(1):475–490. doi: 10.1093/plphys/kiad507

Table 2.

Observed and calculated rgr and final plant weights

Observed and calculated rgr	rgr (d⁻¹)	Weight (W₂), (g)	Weight relative to LD
LD observed	0.31	1.37	1
SD observed	0.27	0.74	0.54
SD A-based adjusted	0.21	0.32	0.23
SD DLI adjusted	0.17	0.19	0.14

The observed DWs for plants in LDs (LD observed) or SDs (SD observed). Multiplying the daylength by assimilation weight for SD/LD gave a value of 0.68 and the LD rgr was multiplied by this amount to determine the SD A-based adjusted rgr. Assuming the DLI was proportional to daylength the DLI adjusted rgr was multiplied by 9/16 or 0.56. The final predicted weight based on adjusted rgr was calculated from this equation:

W_{2} = W_{1} \cdot e^{(r g r \cdot (T_{2} - T_{1}))} .

The value for W₁ was 0.02 g for all conditions and T₂ − T₁ was 14 d. An expanded data sheet and explanation are given in Supplemental Table S2 and Method S2. The alternative analysis resulted in rgr values of 0.30 for LD and 0.27 for SD, with corresponding goodness-of-fit R² values of 0.86 and 0.99 (Supplemental Table S2).