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Table 1 Heterosis analysis of ear architectural traits of ZD808

From: Transcriptome profiling and comparison of maize ear heterosis during the spikelet and floret differentiation stages

Stage Trait NG5a CL11a ZD808a MPH (100%) BPH (100%)
Spikelet differentiation stage ear length (mm) 8.25 ± 1.07 6.4 ± 0.36 15.58 ± 0.69 112.7** 88.85**
ear diameter (mm) 2.02 ± 0.19 1.42 ± 0.06 2.86 ± 0.32 66.28** 41.58**
Floret differentiation stage ear length (mm) 14.23 ± 0.55 10.3 ± 1.15 20.67 ± 1.53 68.53** 45.26**
ear diameter (mm) 2.4 ± 0.05 1.87 ± 0.03 3.4 ± 0.17 59.25** 41.67**
Mature ear ear length (cm) 20.28 ± 1.00 15.05 ± 0.26 26.05 ± 0.58 47.49** 28.48**
ear diameter (cm) 4.68 ± 0.20 4.08 ± 0.17 5.60 ± 0.34 28** 19.78**
ear row number 15.50 ± 1.00 12.50 ± 1.00 16 ± 0.00 14.29** 3.23
kernel number per row 32.25 ± 1.71 21 ± 1.15 50.75 ± 4.03 90.61** 57.36**
grain yield (kg/mu) 301 ± 12.5 230 ± 4.5 553 ± 26.1 108** 84**
  1. ** indicate significant differences at P < 0.01
  2. a Values are means ± standard deviation. MPH, midparent heterosis; BPH, Best parent heterosis