| Growth stage | Code | Description |
|---|
| 0: Germination |
00 | Dry seed |
| 01 | Beginning of seed imbibition |
| 03 | Seed imbibition complete |
| 05 | Radicle emerged from seed |
| 07 | Shoot breaking through seed coat |
| 08 | Shoot growing towards soil surface; hypocotyl arch visible |
| 09 | Emergence: shoot breaks through soil surface (“cracking stage”) |
| 1: Leaf development |
10 | Pair of scale leaves visible |
| 11 | First true leaf (with stipules) unfolded or first tendril developed |
| 12 | 2 leaves (with stipules) unfolded or 2 tendrils developed |
| 13 | 3 leaves (with stipules) unfolded or 3 tendrils developed |
| 1 . | Stages continuous till ... |
| 19 | 9 or more leaves (with stipules) unfolded or 9 or more tendrils developed |
| 3: Stem elongation (Main shoot) |
30 | Beginning of stem elongation |
| 31 | 1 visibly extended internode1 |
| 32 | 2 visibly extended internodes1 |
| 33 | 3 visibly extended internodes1 |
| 3 . | Stages continuous till ... |
| 39 | 9 or more visibly extended internodes1 |
| 5: Inflorescence emergence |
51 | First flower buds visible outside leaves |
| 55 | First separated flower buds visible outside leaves but still closed |
| 59 | First petals visible, flowers still closed |
| 6: Flowering |
60 | First flowers open (sporadically within the population) |
| 61 | Beginning of flowering: 10% of flowers open |
| 62 | 20% of flowers open |
| 63 | 30% of flowers open |
| 64 | 40% of flowers open |
| 65 | Full flowering: 50% of flowers open |
| 67 | Flowering declining |
| 69 | End of flowering |
| 7: Development of fruit |
71 | 10% of pods have reached typical length;
juice exudes if pressed |
| 72 | 20% of pods have reached typical length;
juice exudes if pressed |
| 73 | 30% of pods have reached typical length;
juice exudes if pressed.Tenderometer value: 80 TE |
| 74 | 40% of pods have reached typical length;
juice exudes if pressed.Tenderometer value: 95 TE |
| 75 | 50% of pods have reached typical length;
juice exudes if pressed.Tenderometer value: 105 TE |
| 76 | 60% of pods have reached typical length;
juice exudes if pressed.Tenderometer value: 115 TE |
| 77 | 70% of pods have reached typical length.
Tenderometer value: 130 TE |
| 79 | Pods have reached typical size (green ripe); peas fully formed |
| 8: Ripening of fruit and seed |
81 | 10% of pods ripe, seeds final colour, dry and hard |
| 82 | 20% of pods ripe, seeds final colour, dry and hard |
| 83 | 30% of pods ripe, seeds final colour, dry and hard |
| 84 | 40% of pods ripe, seeds final colour, dry and hard |
| 85 | 50% of pods ripe, seeds final colour, dry and hard |
| 86 | 60% of pods ripe, seeds final colour, dry and hard |
| 87 | 70% of pods ripe, seeds final colour, dry and hard |
| 88 | 80% of pods ripe, seeds final colour, dry and hard |
| 89 | Fully ripe: all pods dry and brown. Seeds dry and hard (dry ripe) |
| 9: Senescence |
97 | Plants dead and dry |
| 99 | Harvested product |