Agriculture Reference
In-Depth Information
Table 2.2. Extract from the BBCH growth stage scale for cereals, rice and maize (Lancashire
et al.,
1991)
0
Germination
BBCH
code
Cereals
Rice
Maize
00
01
02
03
Dry seed (caryopsis)
Beginning of imbibition
-
Imbibition complete
Dry seed (caryopsis)
Beginning of imbibition
-
Imbibition complete
(pigeon breast)
Dry seed (caryopsis)
Beginning of imbibition
-
Imbibition complete
04
05
-
Radicle emerged from
caryopsis
Radicle elongated, root
hairs and/or side roots
visible
Coleoptile emerged from
caryopsis
-
Radicle emerged from
caryopsis
Radicle elongated, root
hairs and/or side roots
visible
Coleoptile emerged from
caryopsis (in water-
rice stage occurs
before stage 05)
-
Radicle emerged from
caryopsis
Radicle elongated, root
hairs and/or side roots
visible
Coleoptile emerged from
caryopsis
06
07
08
09
-
Emergence: coleoptile
penetrates soil surface
(cracking stage)
-
Imperfect leaf emerges
(still rolled) at the tip
of the coleoptile
-
Emergence: coleoptile
penetrates soil surface
(cracking stage)
1
Leaf development
BBCH
code
Cereals
Rice
Maize
10
First leaf through
coleoptile
Imperfect leaf unrolled,
tip of first true leaf
visible
First leaf unfolded
2 leaves unfolded
3 leaves unfolded
4 leaves unfolded
5 leaves unfolded
6 leaves unfolded
7 leaves unfolded
8 leaves unfolded
9 or more leaves
unfolded
First leaf through
coleoptile
11
12
13
14
15
16
17
18
19
First leaf unfolded
2 leaves unfolded
3 leaves unfolded
4 leaves unfolded
5 leaves unfolded
6 leaves unfolded
7 leaves unfolded
8 leaves unfolded
9 or more leaves
unfolded
First leaf unfolded
2 leaves unfolded
3 leaves unfolded
4 leaves unfolded
5 leaves unfolded
6 leaves unfolded
7 leaves unfolded
8 leaves unfolded
9 or more leaves
unfolded
