Table 1.
Phenotypic variation for stem lodging-related traits among 472 accessions.
| Traits | Environments | Min | Max | Mean | SD (%)a | CVb |
|---|---|---|---|---|---|---|
| SBR | E1 | 24.22 | 153.56 | 68.10 | 21.56 | 0.32 |
| E2 | 16.60 | 138.13 | 56.11 | 16.24 | 0.29 | |
| E3 | 22.31 | 151.54 | 63.26 | 21.82 | 0.34 | |
| E4 | 13.60 | 150.78 | 48.89 | 16.32 | 0.33 | |
| E5 | 6.45 | 66.56 | 23.28 | 8.27 | 0.36 | |
| SD | E1 | 8.17 | 15.45 | 11.63 | 1.24 | 0.11 |
| E2 | 6.25 | 14.78 | 11.75 | 1.20 | 0.10 | |
| E3 | 7.78 | 17.11 | 11.82 | 1.51 | 0.13 | |
| E4 | 6.98 | 15.24 | 11.25 | 1.30 | 0.12 | |
| E5 | 4.68 | 10.97 | 7.43 | 1.06 | 0.14 | |
| SS | E1 | 0.37 | 1.11 | 0.62 | 0.11 | 0.18 |
| E2 | 0.29 | 0.96 | 0.50 | 0.09 | 0.19 | |
| E3 | 0.20 | 1.02 | 0.56 | 0.12 | 0.21 | |
| E4 | 0.21 | 0.93 | 0.48 | 0.10 | 0.21 | |
| E5 | 0.26 | 0.90 | 0.52 | 0.10 | 0.19 | |
| LC | E1 | ∖ | ||||
| E2 | 1073.37 | 8275.52 | 3546.34 | 1018.02 | 0.29 | |
| E3 | 433.72 | 8461.42 | 2396.65 | 1067.23 | 0.45 | |
| E4 | 728.79 | 7926.33 | 3052.70 | 1130.86 | 0.37 | |
| E5 | 407.66 | 3567.37 | 1283.13 | 436.52 | 0.34 | |
SBR, stem breaking resistance (N); SD, stem diameter (mm); SS, stem strength (N/mm2); LC, lodging coefficient; E1, Wuhan in 2015; E2, Yangluo in 2015; E3, Wuhan in 2016; E4, Yangluo in 2016; and E5, Changsha in 2016. aStandard deviation. bCoefficient of variation.