Comparison of different time and priming concentration on the seedling charachteristics of winter rape seed sarigol

In order to study the effects of priming and time on the germination of winter rape (Sarigol), as factorial experiment was carried out in a completely randomaized design (CRD) with 3 replications in Agriculture and Natural Resources Research Center, Mazandaran Province (Sari) in 2011. Factors included poly ethylone glycol (PEG 6000) with the concentration of 5 and 10 %, potassium nitrate (KNO3) with the concentration of 1 and 2 % and potassium chloride (KCl) with the concentration of 2 and 4 % for the times of 2, 4 and 6 hours. The results showed that speed of germination and seedling length by the priming solution of polyethylene glycol (PEG) concentration of 5 % was achieved with 2 hours. The highest and lowest number of normal seedling, related to polyethylene glycol (PEG) concentration of 5 % with 2 hours respectively as well as potassium chloride (KCl) concentration of 4 % were with 6 hours. Lowest germination in polyethylene glycol (PEG) with a concentration of 10% was obtained with 6 hours. Vigor I and II index highest as well as by priming with polyethylene glycol (PEG) concentration of 5 % were with 2 hours.