Figure 4.
Concentration of chlorophyll a (A), b (B) and total (C) on the last day in the vase of stem leaves of 15 tulip varieties in postharvest in response to different preservative solutions. Different letters in each variety (column) and each subfigure indicate statistical differences according to the Tukey test (P ≤ 0.05). Ac: Acropolis, Ba: Barcelona, GP: Golden Parade, JN: Jan van Nes, La: Lalibela, LF: Laura Fygi, LM: Lefeber’s Memory, PI: Pink Impression, RI: Red Impression, RS: Red Shine, Ro: Rosario, SL: Snow Lady, SS: Synaeda Show, VB: Violet Beauty, WF: World’s Favorite. FBW: Fresh Biomass Weight. Control: distilled water; AsA: L-ascorbic acid, 0.2 g/L; LaCl3: lanthanum(III) chloride, 40 µM; La(NO3)3 × 6H2O: lanthanum(III) nitrate hexahydrate, 40 µM. dac: days after cutting.