Table 4.
General combining ability of diapause experienced and nondiapause parental strains for various developmental and diapause traits of C. partellus.
| Parental populations and their crosses (×) | Egg hatching (%) | Larval survival (%) | Diapause incidence (%) | Diapause termination (%) | Adult emergence (%) |
|---|---|---|---|---|---|
| HD × HD | −0.33 | 0.06 | 4.28** | −1.15** | −1.21** |
| PHD × PHD | −1.21 | 0.16 | −0.39 | 0.67* | 0.60* |
| AD × AD | 3.68** | 1.27* | −8.19** | 2.19** | 2.58** |
| PAD × PAD | −2.43* | −1.45** | 3.25** | −1.38** | −1.57** |
| ND × ND | 0.29 | −0.03 | 1.06** | −0.34 | −0.40 |
| Gi-Gj | 7.31** | 0.65** | 2.46*** | 2.33** | 1.91** |
*,** = The GCA values significant at P = 0.05 and 0.01, respectively. HD = Hibernation; PHD = Post-hibernation; AD = Aestivation; PAD = Post-aestivation; ND = Nondiapause.