Table 2. Correlation coefficients of 5-year means for eight traits in the JWC accessions.
| DH | CL | SL | SNS | SD | GNS | GNSL | TKW | |
|---|---|---|---|---|---|---|---|---|
| DH | 1 | |||||||
| CL | 0.721*** | 1 | ||||||
| SL | 0.452*** | 0.518*** | 1 | |||||
| SNS | 0.657*** | 0.501*** | 0.230* | 1 | ||||
| SD | 0.008 | –0.119 | –0.811*** | 0.348*** | 1 | |||
| GNS | –0.286** | –0.294** | –0.416*** | 0.244* | 0.481*** | 1 | ||
| GNSL | –0.663*** | –0.563*** | –0.531*** | –0.355*** | 0.254* | 0.816*** | 1 | |
| TKW | 0.198 | 0.317** | 0.471*** | –0.093 | –0.475*** | –0.521*** | –0.431*** | 1 |
DH, days to heading; CL, culm length; SL, spike length; SNS, spikelet numbers per spike; SD, spike density; GNS, grain numbers per spike; GNSL, grain numbers per spikelet; TKW, thousand-kernel weight. *, ** and ***; significane at p < 0.05, 0.01, and 0.001, respectively.