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Table 3 Growth parameters obtained by imaging and ANOVA for seven rice genotypes at 14 days after sowing

From: Non-destructive phenotyping for early seedling vigor in direct-seeded rice

Traits LB-46 GM-217 AC38399 ARC10656 Vandana Sabita Varshadhan ANOVA
First leaf length (mm) 52.47 ± 5.79 39.33 ± 2.62 47.86 ± 5.29 48.90 ± 2.22 55.69 ± 1.89 61.88 ± 3.97 44.45 ± 4.16 *
Second leaf length (mm) 131.17 ± 16.29 125.18 ± 7.25 143.59 ± 6.96 120.87 ± 8.15 147.78 ± 3.62 112.42 ± 6.39 118.97 ± 4.30 NS
Third leaf length (mm) 178.21 ± 10.2 202.07 ± 4.17 173.02 ± 10.95 158.66 ± 9.32 203.80 ± 4.40 118.24 ± 17.82 158.06 ± 8.61 **
First leaf width (mm) 2.39 ± 0.48 1.83 ± 0.15 2.40 ± 0.24 2.02 ± 0.14 2.83 ± 0.11 2.54 ± 0.23 2.43 ± 0.12 NS
Second leaf width (mm) 2.38 ± 0.21 2.53 ± 0.13 2.80 ± 0.25 2.51 ± 0.14 2.78 ± 0.11 2.96 ± 0.30 2.68 ± 0.07 NS
Third leaf width (mm) 2.96 ± 0.23 2.20 ± 0.13 3.12 ± 0.43 2.4 ± 0.35 3.81 ± 0.12 2.61 ± 0.25 3.61 ± 0.27 **
First leaf area (mm2) 97.38 ± 20.53 81.10 ± 11.53 107.57 ± 17.43 115.90 ± 13.72 114.28 ± 7.06 107.52 ± 7.72 80.29 ± 12.35 NS
Second leaf area (mm2) 242.33 ± 38.73 257.90 ± 17.78 305.80 ± 31.68 214.34 ± 18.34 276.31 ± 15.97 217.15 ± 31.27 225.43 ± 23.62 NS
Third leaf area (mm2) 381.01 ± 45.32 352.48 ± 10.54 374.25 ± 57.70 268.87 ± 40.13 511.13 ± 30.33 221.04 ± 46.28 351.85 ± 54.56 **
Stem area (mm2) 185.89 ± 54 402.86 ± 30.15 176.98 ± 20.04 199.65 ± 25.43 216.80 ± 15.28 143.79 ± 13.42 171.66 ± 12.39 **
Eccentricity 205.37 ± 22.72 287.20 ± 23.04 148.08 ± 31.8 164.477 ± 17.45 241.80 ± 17.06 110.20 ± 12.64 160.49 ± 18.61 **
Convex hull (mm2) 9029.58 ± 3243 24191.40 ± 3913.40 4624.74 ± 1784 6657.24 ± 2597 17011.46 ± 3955 2635.28 ± 679.39 5376.21 ± 1912 **
Caliper length (mm) 311.49 ± 48.16 403.99 ± 25.76 227.75 ± 49 207.89 ± 21.76 415.39 ± 22.75 162.58 ± 19.40 286.71 ± 34.94 **
WPAs (mm2) 906.62 ± 89 1264.52 ± 98 964.61 ± 98.64 798.76 ± 44.57 1118.54 ± 49.51 689.49 ± 68.34 829.22 ± 75.42 **
WPAi (mm2) 1095.45 ± 178 1498.38 ± 124 726.61 ± 143 593.90 ± 61.76 1384.60 ± 86.28 514.22 ± 57.06 857.27 ± 138.47 **
Top view area (mm2) 3061.90 ± 642.51 3222.871 ± 848.06 1637.00 ± 591 1359.82 ± 337 1057.60 ± 284 1057.60 ± 284.62 1539.68 ± 422 **
Compactness 0.34 ± 0.04 0.13 ± 0.01 0.35 ± 0.03 0.20 ± 0.02 0.06 ± 0.01 0.40 ± 0.05 0.29 ± 0.02 **
  1. Mean ± standard error and significance of ANOVA are presented for each variety
  2. NS non-significant
  3. * p < 0.05; ** p < 0.001