Adaptation test of kenaf (Hibiscus cannabinus L.) varieties and lines attidal swamps land, Central KalimantanThe area of tidal swamps In Central Kalimantan is approximately5.5 million hectare and parts of that area can be developed by kenaf plant.The adaptation test of several kenaf varieties and lines was conducted inSamuda Village, Mentaya Hilir Selatan District, Kotawaringin Timur,Central Kalimantan. The experiment used a randomized block design withthree replications and six treatments consisting of two kenaf varieties (HcG-4 and Cuba 108/II) and four kenaf lines (No 85.9.75; No 220.127.116.11; No85.9.42; No 18.104.22.168). Parameters observed were plant height, stemdiameter at 40, 75 and 105 days after planting, on 10 random plantsperplot, fresh biomass, dried fiber, and dried adventive root weight. Theresults of this experiment showed that two lines, namely Hc 22.214.171.124and Hc 85.9.75 obtained the optimal vegetative growth as their plantheight and stem diameter at harvesting time reached 265.25 cm and260.25 cm, 2.17 cm and 2.10 cm respectively. The fiber yields of the twolines were 2.40 and 2.30 ton/ha respectively, while the control line Hc G-4was only 2.25 ton/ha.