Seed colour
If the is difficult to decide then the sodium hydroxide test can be used. Place grains in the petri-dish and add 25 ml of 5% solution NaOH for 60-90 minutes. Original red grains will be dark brownish orange. and white grains will be straw yellow.
Code | Term | Description |
---|---|---|
1 | White | |
2 | Red | |
3 | Purple |