Day 22, 23
Day 22, 23. As the first and second trifoliate leaves continue to expand; the unifoliate leaves (arrow) are still present. The cotyledons have shriveled and may have dropped off (abscised).
Fertilization rate should be increased to 150 ppm nitrogen by now (Day 21).
Figure 30. Unifoliate leaves and first two trifoliate leaves. The unifoliate leaves (arrow) formed in the seed are still present as the first and second trifoliate leaves expand. Image: E. T. Paparozzi and M. E. Conley.