Effect of different priming materials on germination and seedling growth of (Nigella sativa L.)

In order to investigate the effect of priming on germination and characteristics of (Nigella sativa L.); an experiment was carried out in complete block design with 3 replication. Priming treatments were 3 levels of GA; (50, 100, 200 ppm), 3 levels of silisium (1, 1.5, 2%), 3 levels of humic acid (1, 1.5, 2%), and 3 levels of ascorbic acid (0.5, 1, 1.5 m.molar). Priming time for ascorbic acid was 10 hours; and priming time for other materials was 24 hours for (Nigella sativa L.) Germination percent and speed, mean time needed for germination, seedling shoot length and root length were evaluated in the experiment. It was observed that priming had significant effects on germination percent and speed, mean time, mean daily time, seedling shoot length; but on seedling root length. Hu had the highest Present of germination, main daily germination, speed germination and lowest main time germination seeds with 1.5 percent concentration. Also GA had the highest of shoot length with 100ppm concentration.