2.5. Seed quality evaluation
The seed quality was evaluated as mechanical damage,germination test, and seed vigour. The mechanical damage was determined by weight, comparing the mass of seeds
damaged to a general sample of given mass (Segler, 1951;Yalc¸ın, 1999). Firstly three replications of 100 seeds were weighed and then the damaged seeds were counted by hand
and weighed. The ratio of damaged seeds to the total seeds was termed as mechanical damage and expressed in mass percentage