This is a knitting stitch with little bumpy stitches made by purl stitches scattered in alternate columns and rows in the front and in the reverse of the work.
In hand-knitting, the seed stitch effect is achieved by knitting and purling.
Seed Stitch on even number of stitches
Cast on an even number of stitches.
Row 1: K1, P1; repeat this to the end.
Row 2: P1, K1; repeat this to the end.
Repeat these two rows form the pattern.
Seed Stitch on odd number of stitches
Cast on odd numbers of stitches.
Row 1: K1, *P1, K1, repeat from * to the end.
Repeating this row forms the pattern.
Seed Stitch can be done on the knitting machine by reforming the alternate purl stitch to a knit stitch.
A seed stitch effect can also be done on the knitting machine by using tuck stitch