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with a mixed solution containing acetone, ethanol, and water (the volume ratio, 4.5:4.5:1). Photosynthetic parameters and CO 2 exchange. Net photosynthetic rate (P N ), stomatal conductance ( g s ), intercellular CO 2 concentration (Ci), and

, have not been documented. In addition, we studied Na + , K + , and Ca 2+ concentrations and K + /Na + ratio in hot peppers to further understand the mechanisms causing the effects of the EC iw and LF on yield and quality. The objectives of this study

per row) were selected randomly for measurements of photosynthesis ( A n ), stomatal conductance ( g S ), intercellular CO 2 concentration ( C i ), the pressure required to balance stem water potential at midday, and evapotranspiration. Gas exchange

concentration (0.24%) was greater in seedlings treated with foliar Si than in the other treatments (about 0.2%). In the test on tahiti lime trees, the nutritional status (leaf macronutrient and micronutrient concentrations) was unaffected by any Si treatment

) (DS = 0.39); 2) black perforated cloth acting as neutral density shade that reduced PPF by ≈90% but did not alter the R:FR (NS = 1.28) (Dewitt Co., Sikeston, MO); and 3) under full sun with a similar R:FR (FS = 1.30) within ≈20 m of the NS. The three

leaf temperature and gas exchange responses [Pn, stomatal conductance ( g s ), intercellular CO 2 (Ci), and transpiration (E)] of ‘Ginger Gold’ apple [ Malus × sylvestris (L.) Mill var. domestica (Borkh.) Mansf.] leaves to a kaolin particle film

, net photosynthetic rate ( P n ), transpiration rate ( T r ), stomatal conductance ( g S ), and intercellular CO 2 concentration ( C i ) of each cultivar were measured using a British PP-Systems Portable Photosynthesis Analyzer (Ciras-2, Shanghai

that morning while the dry vines had not been watered for 2–3 d. Destructive harvests at 8 and 16 weeks were used to determine the dry mass and nutrient concentrations in all plant parts. The new shoots were cut at the basal end of the stem, and stems

were taken on a single intact leaf of the terminal mature flush of the seven autumn-initiated shoots and the 23 spring-initiated shoots. On 30 Oct. 2008, the photosynthetic response to intercellular CO 2 concentration ( A / c i response curves) was

photosynthetic photon flux (1000 μmol·m −2 ·s −1 or greater), and varied carbon dioxide (CO 2 ) levels. Photosynthetic activity was assessed by constructing net photosynthesis versus intercellular CO 2 concentration curves from which maximum carboxylation rates