Degree of digestion

Alkali digestibility

Score

Figures

Unaffected grain

Low

1

Swollen grain

Low

2

Swollen grain, with narrow incomplete collar

Intermediate

3

Swollen grain with wide complete collar

Intermediate

4

Split grain with complete collar

Intermediate to high

5

Dispersed grain merging with collar

High

6

Completely dispersed and intermingled grain

High

7