Evaluation the effect of priming with seaweed extract on germination and growth of coriander seedling (Coriandrum sativum L.) at different times

Coriander is one of the most important medicinal plants used both fresh and dried and has many medicinal properties. One of the great biological resources is seaweed, which is full of materials needed for plant growth. Therefore this experiment was performed to investigate the effect of priming with seaweed extract on germination and growth of coriander seedlings (Coriandrum sativum L.) at different times. Factorial experiment was conducted in a completely randomized design with four replications in the Laboratory of Faculty of Agriculture, University of Birjand, in 2020. The experimental factors were priming time at two levels (12 and 24 hours) and the concentration of seaweed extract at 6 levels (1,2,3,4 ml per liters and distilled water and dry seed treatment). Results showed that algae extract priming, significantly increased germination rate and percentage. In general, priming of coriander seeds in 12 hours with 2 ml of seaweed extract improved germination and seedling characteristics of coriander