Fig. 2

Effect of boron spray on the leaf constituents of YD and SX Longan cultivars. We measured the effect of foliar boron spray on leaf constituents such as a Sucrose, b Glucose, c Quina cortisol, d Fructose, e Cellulose, f Lignin, g Starch, h Chlorophyll a, i Chlorophyll b, j Total chlorophyll, and k Carotenoids. The Y-axis in these diagrams represents the concentration of respective leaf constituents, the bars depict the mean ± standard deviation of the biological replicates (n = 3) of SX and YD, with and without boron spray, and the asterisks indicate significant differences between boron treated and untreated SX or YD plants at a significance of p ≤ 0.05 (*), p ≤ 0.01 (**) in the student’s t-test