| Year combination and harvest | Variety | Mean yield (kg/hm2) | (Highest-mean) | (Mean-iowest) | Change index |
| Mean (%) | Mean (%) | (%) | |||
| 1996-2005, ten years Harvest sequence: CFCCFCCCBL 1B 6C 1L 2F | Jilin 30 | 2906 | 34.5 | 34.3 | 68.8 |
| Jidou 3 | 3080 | 24.9 | 23.5 | 48.4 | |
| Pingandou 8 | 3189 | 21.0 | 21.9 | 42.9 | |
| Changnong 5 (CK) | 2785 | 49.5 | 25.7 | 75.2 | |
| Jiunong 21 | 3024 | 24.9 | 28.5 | 53.4 | |
| Jidou 1 | 2858 | 19.6 | 37.2 | 56.8 |