long-run study of the share of hard seeds in lotus corniculatus l.

In certain agricultural species, particularly in perennial legumes, optimum germination capacity in seeds is strongly influenced by the share of hard seeds. This seed category can germinate in a certain share, after a longer period, depending on environmental conditions. Research show that, after a period of six months, hard seeds germinated differently, depending on their size: 71% in the seed group that was not selected depending on size, 35% in small seeds, 67% in medium seeds, and 57% in large seeds. After 266 days of germination, and after previous treatment with ultrasounds, they showed a germination capacity between 46.9% and 68.9%.