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plant photosynthesis and carbon use efficiency in wax begonia. Our regression analysis indicates that net photosynthetic rate of cyclamen was highest when grown under DLI of ≈17 mol·m −2 ·d −1 . Moe (1994) divided the response of herbaceous ornamental

endogenous GA levels where leaf photosynthetic rates were lower but whole-plant photosynthesis was higher. We found no significant differences in instantaneous leaf photosynthetic rates among any of the treatments in our study; however, we did not measure

rationale that lower-canopy leaves, which normally would receive relatively little light and therefore contribute very little to whole-plant photosynthesis and biomass production, may be of greater photosynthetic value when growing with SCL. Future studies

responses to irradiance and CO 2 and whether some varieties were more suited to supplemental, or reduced, irradiance and CO 2 levels. We acknowledge that translating instantaneous P n measurements on a per-unit-area basis to whole-plant photosynthesis

expansion under shade signals such as a low ratio of R to FR radiation can increase radiation capture, thereby promoting whole-plant photosynthesis ( Park and Runkle, 2017 ). Many shade-induced genes upregulated by FR radiation can also be activated by G

., Univ. of Florida Gainesville, FL Schaffer, B. Barden, J.A. Williams, J.M. 1986 Whole plant photosynthesis and dry-matter partitioning in fruiting and deblossomed day-neutral strawberry plants J. Amer. Soc. Hort. Sci. 111 430 433 Stapleton, S.C. Chandler

reduction of a certain percentage of light is often accompanied by an approximately equal reduction in whole plant photosynthesis ( Frantz and Bugbee, 2005 ; Nemali and van Iersel, 2004 ). Shading [or a reduction in daily light integral (DLI)] also leads to

because such measurements do not take into account the total leaf area of plants. They found that high nutrient concentrations had no effect on photosynthesis per unit leaf area, but inhibited leaf elongation and thus whole-plant photosynthesis and dry

, and anthocyanin accumulation ( Talbott et al., 2006 ; Zhang and Folta, 2012 ). It is postulated that shade avoidance responses induced by green light could increase light interception by a larger plant canopy, subsequently increasing whole-plant

plant photosynthesis and marketability of the crop ( Franco et al., 2006 ). In some cases, stomatal conductance ( g S ) may not fully recover after periods of sustained or periodic water stress or previously stressed plants may acclimate through