| Years |
Pedigree
Method |
Bulk Method |
Haploid Method |
| 1 |
Cross parents |
Same as in pedigree method |
Cross parents |
| 2 |
Grow Fl |
Same as in pedigree method |
Grow F1: derive haploids and DHs (anther culture) |
| 3 |
Grow F2 (2000-1000 seeds space planted); select for qualitative traits; harvest seed on single plant basis |
Harvest seed in bulk in F2 - F5; no selection; only natural selection |
Dihaploids are used for intial trials |
| 4-5 |
Grow F3, F4 (plant to progeny rows from selected plants); select rows, plants |
Harvest seed in bulk in F2 - F5; no selection; only natural selection |
Trials to verify performance; release of variety |
| 6 |
GrowF5; initial trial (34 rows of each plant progeny); compare and select |
Harvest seed in bulk in F2 - F5; no selection; only natural selection |
|
| 7-9 |
F6 - F8; trials to; verify performance |
Space planting; select single plants; plant to progenies; yield trials |
|
| 10 |
Final trial and release of variety |
Final trial and release of variety |
|
