Growth Timeline
| Day | Observations |
|---|---|
| 0 | Dry seed sown |
| 1, 2 | Seed swelling; seed coat slips |
| 3 | Radicle emergence |
| 4, 5, 6 | Radicle growing; primary roots forming; hypocotyl growing |
| 7, 8 | Cotyledons starting to poke upward; radicle continues to grow; forming primary roots |
| 9, 10 | Cotyledon emergence begins; seed coat sloughing off |
| 10, 11, 12 | Unifoliate leaves opening |
| 12, 13, 14 | Tiny trifoliate leaf visible on stem apex; unifoliate leaves expanding |
| 14 | Start 100 ppm nitrogen fertilizer - every watering |
| 15, 16 | First trifoliate leaf present; unifoliate leaves expanding |
| 16, 17 | First trifoliate leaf opening; axillary buds obvious; second trifoliate present |
| 18 | First trifoliate leaf open; second trifoliate opening |
| 19, 20, 21 | First trifoliate and second trifoliate leaves continue to expand |
| 21 | Up fertilizer to 150 ppm N - every watering |
| 22, 23, 24 | First and second trifoliate leaves continue to expand; third trifoliate leaf obvious |
| 25, 26 | Third trifoliate leaf expands; fourth trifoliate leaf present |
| 25, 26, 27 | Check axils of the unifoliate and all trifoliate leaves for bud growth |
Red Kidney Bean Growth Timeline, Part 2 Flower Buds Set
| Day | Observations |
|---|---|
| 27 | Floral buds set |
| 32, 33, 34 | Floral anthesis |
| 35 | Floral senescence; small pod(s) present |
| 36 on | Seed pods will elongate and turn beige and pink as seeds develop and ripen. Plants will continue to flower and fruit. |
| 75 on | Pods feel papery, easy to crack open to see mature seeds |