Table 7.
Equations of the lodging parameters: stem bending resistance (N), stem crushing strength (N) at basal internode three with internode morphology.
| Correlation of SBR and ID at internode three | Correlation of SCS and ID at internode three | Correlation of SBR and ID at internode three at 15° | Correlation of SBR and ID/L at internode three | Correlation of SCS ID/L at internode three | Correlation of SBR and ID/L at internode at three 15° | ||
|---|---|---|---|---|---|---|---|
| C1 | a | 0.0485 | 0.1028 | 0.0291 | 0.0057 | 0.0037 | 0.0112 |
| b | 7.321 | 12.045 | 10.739 | 0.9944 | 1.3307 | 1.6182 | |
| R2 | 0.9431∗∗ | 0.9686∗∗ | 0.9325∗∗ | 0.7253∗∗ | 0.8146∗∗ | 0.7834∗ | |
| C2 | a | 0.0511 | 0.1063 | 0.0285 | 0.0059 | 0.0036 | 0.0142 |
| b | 7.8734 | 11.821 | 10.99 | 1.1566 | 1.3704 | 1.4196 | |
| R2 | 0.9826∗∗ | 0.9932∗∗ | 0.8903∗∗ | 0.9607∗∗ | 0.7417∗∗ | 0.8633∗∗ | |
| C3 | a | 0.0467 | 0.1114 | 0.0291 | 0.0037 | 0.0023 | 0.0087 |
| b | 7.6482 | 12.054 | 11.119 | 1.3727 | 1.6432 | 1.7385 | |
| R2 | 0.9285∗∗ | 0.988∗∗ | 0.9156∗∗ | 0.8995∗ | 0.9249∗∗ | 0.9077∗ |
Here SBR is stem bending resistance, SCS is stem crushing strength, ID is internode diameter, ID/L is internode diameter/length and C1 Zhengdan 958, C2 Longping 206, C3 Jinqiu 119. R2 is significant ∗∗(p < 0.01), ∗(p < 0.05).