The effect of seed priming by KNO3 on bioactive compounds of germinated Rye (secale cereal) under salinity stress

Seed priming is one of the ways to reduce negative effects of salt which is used for increasing germination percentage and seed resistance increase in salty zones. In order to study the effect of pre treatment of rye seed (secale cereale L.) by KNO3 on germination an experiment was conducted in triplet in factorial form and based on fully randomized plan in vitro. Factors include KNO3 with density 2% and osmosis potential produced using NaCl 15 and 30 molar were composed the second factor. Germinated seeds were counted daily for eight days. Then the percent of germination, germination speed, the average daily germination, the length of the shoot, root and the weight of dry plant were measured. Regarding mean data resulted from the experiment the results showed that KNO3 affects on the percent of germination, germination speed, the average daily germination, the weight of dry plant, the length of the shoot and the root on the level of one percent (p > 0/01) significantly. In sum the results showed that pre treatment seed by the KNO3 can help the farmers in setting and producing suitable rye plant.