2.8. Field emergence test
Four replicates of 25 seeds of each treatment were sown in a
well-prepared seedbed in straight lines at a depth of 1.5 cm; the
spacing was 1.5 cm between seeds and 3 cm between lines. After
2 days from sowing, the total number of emerging seedlings was
counted daily. The emergence rate was calculated after 14 days and
after 21 days 10 seedlings per replication were randomly taken to
measure the roots and shoots length and to determine the fresh
and oven-dry weights of the seedlings. However, in the first season