Growth stages of mono-and dicotyledonous plants - Regione ...

Leaf vegetables (not forming heads)
Feller et al., 1995 a
Phenological growth stages and BBCH-identification keys
of leaf vegetables not forming heads
(spinach = Spinacia oleracea L., loosehead lettuce = Lactuca sativa L. var.
crispa, kale = Brassica oleracea L. var. sabellica)
Code Description
Principal growth stage 0: Germination
00 Dry seed
01 Beginning of seed imbibition
03 Seed imbibition complete
05 Radicle emerged from seed
07 Hypocotyl with cotyledons breaking through seed coat
09 Emergence: cotyledons break through soil surface
Principal growth stage 1: Leaf development (Main shoot)
10 Cotyledons completely unfolded;
growing point or true leaf initial visible
11 First true leaf unfolded
12 2nd true leaf unfolded
13 3rd true leaf unfolded
1 . Stages continuous till . . .
19 9 or more true leaves unfolded
Principal growth stage 3: Stem elongation of rosette growth
33 Leaf rosette has reached 30% of the expected diameter
typical for the variety. 1 Main shoot has reached 30% of the
expected height typical for the variety2 35 Leaf rosette has reached 50% of the expected diameter
typical for the variety. 1 Main shoot has reached 50% of the
expected height typical for the variety2 37 Leaf rosette has reached 70% of the expected diameter
typical for the variety. 1 Main shoot has reached 70% of the
expected height for the variety2 39 Rosette development completed1 Main shoot has reached the height typical for the variety2 1 For letucce varieties without head, spinach and species with rosette-type growth
2 For kale and species without rosette growth