These data indicate that low PPF not only decreases the photosynthetic rate but also increases the importance of maintenance respiration in the carbon balance of the plants, thereby further reducing the growth rate of plants. At the end of the experiment, plants grown at high PPF had an increased photosynthetic capacity, DCG, and growth respiration. Begonia growth depends on their variety, but they are generally considered very fast growers. Use a pot with a drainage hole and allow top 1-inch (2. Overwatering will cause leaves to turn yellow. If you move your begonia outdoors for the summer, keep it shaded from hot, direct sun. Begonias grow well under fluorescent lights, too. At harvest, crop dry weight (DW CROP) increased linearly with increasing PPF. Origin: Hybrids Height: 6-12 in (15-30 cm) Light: Bright, indirect light. d -1, due to the lower ratio of R m to R T in plants.Carbon use efficiency (CUE) of plants was higher at 14.4 or 19.4 mol d -1 was high as the percentage of maintenance (R m) to total respiration (R T) at harvest was 87 and 83 %, respectively, while it was only 70% at 14.4 and 19.4 mol. It appears that the cost of acclimation to low PPF for plants grown at 5.3 and 9.5 mol d -1 respired more than they photosynthesized during the initial growth period, which resulted in a negative daily carbon gain (DCG).Netphotosynthesis (P n) and dark respiration (R d) in plants increased linearly with increasing PPF. d -1) in a wholeplant gas exchange system.The effect of increasing photosynthetic photon flux (PPF) on photosynthesis and respiration in wax begonia ( Begonia semperflorenscultorum) was examined by measuring CO2 exchange rate (CER) of plants continuously for a period of 25 days under four different PPF treatments (5.3, 9.5, 14.4, and 19.4 mol
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