Research Article
Griffing's Methods Comparison for General and Specific Combining Ability in Cucumber
Table 4
Mean squares from diallel analysis for various characters in cucumber (Griffing’s model I Method 4).
| Source of variation | Degree of freedom | Mean of square | Early yield | Marketable yield | Nonmarketable yield | Total yield | SWI | Marketable yield percentage |
| GCA | 5 | 0.01 ns | 0.96** | 0.016** | 1.19** | 0.16** | 216.54** | SCA | 9 | 0.01 ns | 1.40** | 0.002 ns | 1.16** | 1.57** | 393.06** | M′e | 28 | 0.003 | 0.03 | 0.001 | 0.02 | 0.04 | 29.08 |
| | — | 1.00 ns | 0.69 ns | 8.00** | 1.03 ns | 0.10 ns | 0.55 ns | Baker ratio | — | 0.67 | 0.58 | 0.94 | 0.67 | 0.17 | 0.52 | | — | b | b | 0.64 | b | b | b |
|
|
ns, *, ** non significant and significant at and respectively. b: not estimated because .
|