<![CDATA[Priming is a process that controls the process of hydration of seeds for the ongoing metabolic processes before germination. Research on  priming  was conducted at ICERI seed laboratory from May to September 2009 to evaluate the effect of different priming methods on wheat seed vigor. Physical properties and chemical composition of seed were evaluated before seeds were treated. The priming treatment were conducted by soaking 250 g of seed in 500 mL of solution for hydropriming and halopriming. Two seed lots of Nias and Dewata variety were subjected to heated and unheated  distilled water for 12hours and subjected  to  KCl and CaCl2  at 10, 20, and 30 ppm and unprimed seed. The experiment were arranged in completely randomized design,  replicated thrice. Vigor evaluation by observed  seed germination, simultaneity growth, germination rate, seedling dry weight, electric conductivity of seed leakage and length of primary root.  The results showed that highest germination, simultaneity growth, seedling dry weight, and length of primary root, were priming treatment   with KCl 30 ppm and CaCl2 20 and 30 ppm. Priming with distilled water for 12 hours gave higher germination percentage and simultaneity growth.  Keywords : priming, wheat, seed, vigor                                                        ]]>
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