00

Flag leaf sheath extending

41

Start of imbibition

01

Boot swollen

45

10

Imbibition complete

03

Flag leaf sheath opening

47

Emerged radicle

05

First visible awns

49

Emerged coleoptile

07

Leaf at coleotile tip

09

First inflorescence spikelet visible

50

10.1

1/4 of inflorescence visible

53

10.2

First true leaf

10

1

1/2 of inflorescence visible

55

10.3

First leaf unfolded

12

3/4 of infloresence visible

57

10.4

2 leaves unfolded

12

Inforescence completely emerged

59

10.5

3 leaves unfolded

13

4 leaves unfolded

14

5 leaves unfolded

15

Anthesis begins

60

10.51

6 leaves unfolded

16

1/2 of anthesis complete

65

7 leaves unfolded

17

Anthesis complete

69

8 leaves unfolded

18

9 or more leaves

19

Kernel watery ripe

71

10.54

Early milk

73

Main shoot only

20

Medium milk

75

11.1

Main shoot and 1 tiller

21

2

Late milk

77

Main shoot and 2 tillers

22

Main shoot and 3 tillers

23

Main shoot and 4 tillers

24

Early dough

83

Main shoot and 5 tillers

25

0

Soft dough

85

11.2

Main shoot and 6 tillers

26

3

Hard dough

87

Main shoot and 7 tillers

27

Main shoot and 8 tillers

28

Main shoot and 9 or more tillers

29

Kernel hard (difficult to split by thumbnail)

91

11.3

Kernel hard (cannot be dented by thumbnail)

92

11.4

Kernel loosening in daytime

93

30

4-5

Overripe

94

31

6

Seed dormant

95

32

7

Viable seed has 50% germ.

96

33

Seed not dormant

97

34

Secondary dormancy

98

35

Secondary dormancy lost

99

36

37

8

39

9