Below the list of already defined phenological phases of PEP725.
Please note that some phases were only provided for future expansion of the programme.
If you find errors please let us know!

phase_id's up to 99 correspond to the well known BBCH-scale. From 100 upwards you will find those phases which are not covered in the BBCH system.
version: 2024-04-30
phase_id bbch description
00Dry seed (seed dressing takes place at stage 00), P, V: Winter dormancy or resting period
11Beginning of seed imbibition, P, V: Beginning of bud swelling
33Seed imbibition complete, P, V: End of bud swelling
55Radicle (root) emerged from seed, P, V: Perennating organs forming roots
66Elongation of radicle, formation of root hairs and /or lateral roots
77G: Coleoptile emerged from caryopsis, D, M: Hypocotyl with cotyledons or shoot breaking through seed coat, P, V: Beginning of sprouting or bud breaking
88D: Hypocotyl with cotyledons growing towards soil surface, P, V: Shoot growing towards soil surface
99G: Emergence: Coleoptile breaks through soil surface, D, M: Emergence: Cotyledons break through soil surface(except hypogeal germination),D, V: Emergence: Shoot/leaf breaks through soil surface, P: Bud shows green tips
1010G: First true leaf emerged from coleoptile, D, M: Cotyledons completely unfolded, P: First leaves separated
1111First true leaf, leaf pair or whorl unfolded, P: First leaves unfolded
12122 true leaves, leaf pairs or whorls unfolded
13133 true leaves, leaf pairs or whorls unfolded
14144 true leaves, leaf pairs or whorls unfolded
15155 true leaves, leaf pairs or whorls unfolded
16166 true leaves, leaf pairs or whorls unfolded
17177 true leaves, leaf pairs or whorls unfolded
18188 true leaves, leaf pairs or whorls unfolded
19199 or more true leaves, leaf pairs or whorls unfolded
2121First side shoot visible, G: First tiller visible
22222 side shoots visible, G: 2 tillers visible
23233 side shoots visible, G: 3 tillers visible
24244 side shoots visible, G: 4 tillers visible
25255 side shoots visible, G: 5 tillers visible
26266 side shoots visible, G: 6 tillers visible
27277 side shoots visible, G: 7 tillers visible
28288 side shoots visible, G: 8 tillers visible
29299 or more side shoots visible, G: 9 or more tillers visible
3030Onset of height growth (e.g. Pinus, Picea)
3131Stem (rosette) 10% of final length (diameter), G: 1 node detectable
3232Stem (rosette) 20% of final length (diameter), G: 2 nodes detectable
3333Stem (rosette) 30% of final length (diameter), G: 3 nodes detectable
3434Stem (rosette) 40% of final length (diameter), G: 4 nodes detectable
3535Stem (rosette) 50% of final length (diameter), G: 5 nodes detectable
3636Stem (rosette) 60% of final length (diameter), G: 6 nodes detectable
3737Stem (rosette) 70% of final length (diameter), G: 7 nodes detectable
3838Stem (rosette) 80% of final length (diameter), G: 8 nodes detectable
3939Maximum stem length or rosette diameter reached, G: 9 or more nodes detectable, end of height growth (e.g. Pinus, Picea
4040Harvestable vegetative plant parts or vegetatively propagated organs begin to develop
4141G: Flag leaf sheath extending
4343Harvestable vegetative plant parts or vegetatively propagated organs have reached 30% of final size, G: Flag leaf sheath just visibly swollen (mid-boot)
4545Harvestable vegetative plant parts or vegetatively propagated organs have reached 50% of final size, G: Flag leaf sheath swollen (late-boot)
4747Harvestable vegetative plant parts or vegetatively propagated organs have reached 70% of final size, G: Flag leaf sheath opening
4848Maximum of total tuber mass reached, tubers detach easily from stolons, skin set not yet complete (skin easily removable with thumb)
4949Harvestable vegetative plant parts or vegetatively propagated organs have reached final size, G: First awns visible, Skinset complete
5050Flower buds present, still enclosed by leaves (oilseed rape)
5151Inflorescence or flower buds visible, G: Beginning of heading
5252G:20% of inflorescence emerged
5353G:30% of inflorescence emerged
5454G:40% of inflorescence emerged
5555First individual flowers visible (still closed), G: Half of inflorescence emerged (middle of heading)
5656G:60% of inflorescence emerged
5757G:70% of inflorescence emerged
5858G:80% of inflorescence emerged
5959First flower petals visible (in petalled forms), G: Inflorescence fully emerged (end of heading)
6060Beginnin of flowering: first flowers open (sporadically)
6161Beginning of flowering: 10% of flowers open
626220% of flowers open
636330% of flowers open, maize: male beginning of pollen shedding, female: tips of stigmata visible
646440% of flowers open
6565Full flowering: 50% of flowers open, first petals may be fallen
6767Flowering finishing: majority of petals fallen or dry
6969End of flowering: fruit set visible
717110% of fruits have reached final size or fruit has reached 10% of final size, G: Caryopsis watery ripe
727220% of fruits have reached final size or fruit has reached 20% of final size
737330% of fruits have reached final size or fruit has reached 30% of final size, G: Early milk
747440% of fruits have reached final size or fruit has reached 40% of final size
757550% of fruits have reached final size or fruit has reached 50% of final size, G: Milky ripe, medium milk
767660% of fruits have reached final size or fruit has reached 60% of final size
777770% of fruits have reached final size or fruit has reached 70% of final size, G: Late milk
787880% of fruits have reached final size or fruit has reached 80% of final size
7979Nearly all fruits have reached final size
8080olive: fruit deep green colour becomes lightgreen, yellowish
8181Beginning of ripening or fruit colouration
8383G: early dough stage
8585Advanced ripening or fruit colouration, G: Soft dough stage
8787Fruit begins to soften (species with fleshy fruit), fruit ripe for picking
8989Fully ripe: fruit shows fully-ripe colour, beginning of fruit abscission
9191P: Shoot development completed, foliage still green, grapevine: after harvest, end of wood maturation
9393Beginning of leaf-fall
959550% of leaves fallen
9797End of leaf fall, plants or above ground parts dead or dormant, P Plant resting or dormant
9999Harvested product (post-harvest or storage treatment is applied at stage 99)
100start of harvest
109end of harvest
111first cut for silage winning
115first cut for silage winning (=> 50% of the area)
119end of the first cut for silage winning (=> 90% of the area)
131first cut for hay winning
135first cut for hay winning (=> 50% of the area)
139end of first cut for hay winning (=> 90% of the area)
140second cut for hay winning, aftermath
151start of harvest for silage (corn, grass)
161start of Corn - cob - mix harvest for silage
18225% of the permanent grassland shows fresh green
200autumnal colouration: first discoloured leaves (sporadically)
201start of autumnal colouration: leaves beginn to discolour (>=10%)
202autumnal colouration >=20%
203autumnal colouration >=30%
204autumnal colouration >=40%
205autumnal colouration >=50%
206autumnal colouration >=60%
207autumnal colouration >=70%
208autumnal colouration >=80%
209end of autumnal colouration: nearly all leaves are discoloured (>=90%)
210autumnal leaf fall: first fallen leaves (sporadically)
212autumnal leaf fall: >=20% of leaves fallen
213autumnal leaf fall: >=30% of leaves fallen
214autumnal leaf fall: >=40% of leaves fallen
216autumnal leaf fall: >=60% of leaves fallen
217autumnal leaf fall: >=70% of leaves fallen
218autumnal leaf fall: >=80% of leaves fallen
223Leaf unfolding (>=50%)
250Grapevine bleeding, pruned grapes start to loss water from the cuts
251sap exudation (birch trees)
286first ripe fruits