Table 3 Morphological parameters, biomass production, and quality indices of grafted watermelon seedlings after three or six days in the healing chamber under three or nine light treatments, respectively.
Light treatments | Stem length (mm) | Stem diameter (mm) | Leaf area (cm2) | Maximum tensile stress (kg) | Shoot dry weight (g) | Root dry weight (g) | R/S ratio | DQI × 1000 |
|---|---|---|---|---|---|---|---|---|
Days 1–3 after grafting | ||||||||
R | 35.85 ± 1.47 b | 3.82 ± 0.06 a | 5.52 ± 0.52 a | 0.095 ± 0.020 a | 0.159 ± 0.005 a | 0.023 ± 0.001 b | 0.144 ± 0.011 b | 11.54 ± 0.57 ab |
B | 37.73 ± 1.57 ab | 3.92 ± 0.06 a | 6.17 ± 0.34 a | 0.135 ± 0.027 a | 0.162 ± 0.003 a | 0.031 ± 0.003 a | 0.195 ± 0.015 a | 13.31 ± 0.77 a |
12B | 41.23 ± 1.28 a | 3.77 ± 0.09 a | 5.05 ± 0.52 a | 0.158 ± 0.017 a | 0.168 ± 0.003 a | 0.023 ± 0.002 b | 0.135 ± 0.013 b | 10.49 ± 0.95 b |
Days 4–6 after grafting | ||||||||
R-R | 34.44 ± 2.79 a | 4.18 ± 0.08 ab | 15.20 ± 2.56 abcd | 0.300 ± 0.047 c | 0.149 ± 0.007 ab | 0.031 ± 0.002 ab | 0.214 ± 0.007 ab | 12.31 ± 1.33 ab |
R-B | 34.44 ± 0.75 a | 4.00 ± 0.09 ab | 12.42 ± 1.41 d | 0.390 ± 0.033 bc | 0.127 ± 0.006 b | 0.022 ± 0.004 b | 0.171 ± 0.024 ab | 10.08 ± 1.19 b |
R-12B | 39.38 ± 1.75 a | 4.33 ± 0.08 a | 16.80 ± 1.61 abcd | 0.440 ± 0.024 abc | 0.143 ± 0.004 ab | 0.031 ± 0.003 ab | 0.211 ± 0.014 ab | 13.26 ± 1.14 ab |
B-R | 35.62 ± 1.74 a | 4.14 ± 0.09 ab | 19.45 ± 0.67 ab | 0.470 ± 0.037 abc | 0.153 ± 0.005 ab | 0.036 ± 0.002 ab | 0.246 ± 0.022 a | 14.49 ± 0.76 ab |
B-B | 35.91 ± 2.58 a | 3.98 ± 0.09 ab | 12.45 ± 1.17 cd | 0.390 ± 0.043 bc | 0.151 ± 0.010 ab | 0.023 ± 0.002 b | 0.154 ± 0.020 b | 11.04 ± 1.07 ab |
B-12B | 33.50 ± 1.62 a | 3.98 ± 0.08 a | 19.32 ± 1.29 abc | 0.510 ± 0.040 ab | 0.164 ± 0.007 a | 0.035 ± 0.004 ab | 0.215 ± 0.018 ab | 15.74 ± 1.90 ab |
12B-R | 37.65 ± 1.03 a | 4.35 ± 0.12 ab | 20.08 ± 1.53 ab | 0.480 ± 0.037 abc | 0.169 ± 0.009 a | 0.040 ± 0.004 a | 0.217 ± 0.013 ab | 16.32 ± 1.68 ab |
12B-B | 35.65 ± 1.07 a | 3.90 ± 0.11 b | 13.26 ± 1.02 bcd | 0.490 ± 0.029 abc | 0.146 ± 0.006 ab | 0.027 ± 0.002 ab | 0.182 ± 0.023 ab | 11.74 ± 0.72 ab |
12B-12B | 34.18 ± 2.87 a | 4.18 ± 0.07 ab | 20.32 ± 1.64 a | 0.620 ± 0.068 a | 0.160 ± 0.005 a | 0.036 ± 0.004 ab | 0.223 ± 0.020 ab | 16.92 ± 2.18 a |
