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Table 1 Agronomic traits of F1 hybrids and their parents during two seasons

From: Heterosis analysis and underlying molecular regulatory mechanism in a wide-compatible neo-tetraploid rice line with long panicles

TraitsParents (Mean ± SD)F1 hybrids (Mean ± SD)
T485H1H8T485 × H8H1 × H8
Plant height (cm)90.78 ± 0.25101.39 ± 1.63137.28 ± 3.60132.28 ± 2.49144.53 ± 1.11
No. of panicles per plant4.78 ± 0.545.45 ± 0.983.11 ± 0.423.77 ± 0.314.67 ± 0.40
Panicle length (cm)25.28 ± 0.8720.72 ± 0.5528.65 ± 0.2628.44 ± 1.1228.44 ± 1.13
Filled grains per plant153.39 ± 40.13252.73 ± 63.35308.72 ± 29.09505.33 ± 56.11589.10 ± 42.79
Grain yield per plant (g)5.14 ± 1.168.88 ± 2.1310.89 ± 0.7518.72 ± 1.9423.18 ± 1.50
1000-grain weight (g)34.68 ± 2.9835.51 ± 0.2235.35 ± 1.1537.21 ± 0.7139.55 ± 0.62
Seed setting (%)33.35 ± 4.5365.30 ± 3.6555.82 ± 6.1975.16 ± 2.2577.04 ± 3.80
  1. T485, H1and H8 indicate Huanghuazhan-4x, Huaduo 1 and Huaduo 8, respectively