Table 1

Mid-parent heterosis and high-parent heterosis of root traits at tillering and heading stages
Stage Traits R9308 Xieyou 9308 Xieqingzao B MPH (%) HPH (%)
Tillering stage Root length (cm) 31.96±3.21 33.34±1.77 25.58±2.63 15.88** 4.32
Root dry weight (g) 1.45±0.04 3.11±0.13 2.24±0.01 68.56* 38.84
Root-shoot ratio 0.20±0.02 0.25±0.00 0.19±0.01 28.21* 25.00*
Shoot dry weight (g) 7.45±0.81 12.48±0.39 12.07±0.85 27.85 3.36
Heading stage Root length (cm) 48.63±2.73 64.45±3.07 37.5±2.45 49.66** 32.53**
Root dry weight (g) 6.44±0.52 11.27±0.34 3.06±0.22 137.26** 75.00**
Root-shoot ratio 0.15±0.00 0.18±0.02 0.13±0.00 28.57* 20.00
Shoot dry weight (g) 43.21±1.34 61.86±0.64 24.13±5.15 92.29* 43.16*

**Significant difference with p < 0.01.

*Significant difference with p < 0.05.

Zhai et al.

Zhai et al. BMC Genomics 2013 14:19   doi:10.1186/1471-2164-14-19

Open Data