BioMed Research International / 2019 / Article / Tab 2

Research Article

Supplementary Light Source Affects Growth, Metabolism, and Physiology of Adenophora triphylla (Thunb.) A.DC. Seedlings

Table 2

Growth characteristics of A. triphylla seedling grown under different supplementary light sources.

TreatmentStem diameter (mm)Total length (mm)Total DW (g)Shoot DW (g)Root DW (g)SLW b (10−2 g·cm−2)No. of leavesRoot to shoot ratio

HPS3.0 ± 0.2 b207.9 ± 5.7 a0.19 ± 0.02 b0.15 ± 0.01 b0.04 ± 0.01 c1.95 ± 0.06 b4.8 ± 0.4 a0.30 ± 0.04 b
MH3.4 ± 0.2 ab211.3 ± 7.7 a0.31 ± 0.03 a0.24 ± 0.02 a0.07 ± 0.01 ab1.94 ± 0.09 b6.6 ± 0.6 a0.30 ± 0.04 b
FR2.2 ± 0.1 c172.9 ± 8.5 b0.11 ± 0.01 c0.09 ± 0.01 c0.02 ± 0.00 d1.53 ± 0.09 c4.7 ± 0.5 a0.21 ± 0.03 b
LED-w3.0 ± 0.1 b216.5 ± 10.6 a0.28 ± 0.03 a0.24 ± 0.02 a0.05 ± 0.01 bc2.21 ± 0.09 a5.6 ± 0.7 a0.22 ± 0.02 b
LED-mix3.8 ± 0.2 a199.8 ± 5.3 a0.30 ± 0.03 a0.22 ± 0.02 a0.08 ± 0.01 a2.20 ± 0.08 a6.0 ± 0.4 a0.42 ± 0.05 a

DW: dry weight; SLW: specific leaf weight; HPS: high pressure sodium; MH: metal halide; FR: far-red; LED-w: white (red: green: blue = 2:4:3) LED; and LED-mix: mixed (red: green: blue =4: 1: 4) LED. Data are presented as the mean ± standard error of mean (n = 10). Different letters (a, b, and c) indicate significant differences (p < 0.05) among treatments.

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