Visual Description
Decimal
Feekes
Germination
Dry Seed
00
Start of imbibition
01
Imbibition complete
03
Emerged radicle
05
Leaf at coleoptile tip
09
Seedling Growth
First true leaf
10
1
First leaf unfolded
11
2 leaves unfolded
12
3 leaves unfolded
13
4 leaves unfolded
14
5 leaves unfolded
15
6 leaves unfolded
16
7 leaves unfolded
17
8 leaves unfolded
18
9 or more leaves
19
Tillering
Main shoot only
20
Main shoot and 1 tiller
21
2
Main shoot and 2 tillers
22
Main shoot and 3 tillers
23
Main shoot and 4 tillers
24
Main shoot and 5 tillers
25
Main shoot and 6 tillers
26
3
Main shoot and 7 tillers
27
Main shoot and 8 tillers
28
Main shoot and 9 or more tillers
29
Stem Elongation
Pseudo stem erection
30
4-5
1st detectable node
31
6
2nd detectable node
32
7
3rd detectable node
33
4th detectable node
34
5th detectable node
35
6th detectable node
36
Flag leaf visible
37
8
Flag leaf ligule and collar visible
39
9
Booting
Flag leaf sheath extending
41
Boot swollen
45
10
Flag leaf sheath opening
47
First visible awns
49
Inflorescence Emergence
First inflorescence spikelet visible
50
10.1
1/4 of inflorescence visible
53
10.2
1/2 of inflorescence visible
55
10.3
3/4 or inflorescence visible
57
10.4
Inflorexsccence completely emerged
59
10.5
Anthesis
Anthesis begins
60
10.51
1/2 of anthesis complete
65
Anthesis complete
69
Milk Development
Kernal water ripe
71
10.54
Early Milk
73
Medium Milk
75
11.1
Late Milk
77
Dough Development
Early dough
83
Soft dough
85
11.2
Hard dough
87
Ripening
Kernel hard (difficult to split by thumbnail)
91
11.3
Kernel hard (cannot be dented by thumbnail)
92
11.4
Kernal loosening in daytime
93
Overripe
94
Seed dormant
95
Viable seed has 50% germ.
96
Seed not dormant
97
Secondary dormancy
98
Seconday dormancy lost
99