Abstract

The effect of garlic extract and zinc was studied on the germination and growth of tomato seeds. The study included the use of garlic extract with 20, 40 and 60 mg / L concentrations and zinc solution (7H₂O.ZnSO₄) with (0.2, 0.4, 0.6, 0.8 mg / L) concentrations, in addition to, distilled water that was used as control.. The results showed that the garlic extract has inhibited the seed germination, the root length and the feather length of the tomatoes. The highest inhibition was observed at 60 mg / L concentration. Zinc solution has resulted in a significant increasing of the root length and feather of the tomatoes where the 0.8mg/ L concentration gave higher values, while germination rate decreased with the effect of zinc solution.