Pertumbuhan Planlet Anggrek Cattleya sp. dengan Perlakuan Benzyl Amino Purin pada Media Dasar Pupuk Daun Modifikasi

Growth of Plantlets of Cattleya Orchid on The Fooliar Fertilizer - Based Madium Added with Benzyl Amino Purin. The aim of the current research was to investigate the apropriateconcentration of plant growth regulator BAP on the growth of Cattleya plantlet. The experiment was utilized a Randomized Completety with five treatments and six replications. The basal medium used wasmodification of foliar fertilizer of Growmore (trade mark) with addition the fish emultion, vitamin B1 and active charcoal. BAP concentration used as treatment were 0 ppm, 0.5 ppm, 1 ppm, 1.5 ppm, and 2.0 ppm. Variable observed werw hight, leaf number, root number, root lenght, fresh weight, and dry weight of plantlets. The result showed that concentration of 1 ppm BAP resulted in the highest value for plantlet hight (5.67 cm), leaf number (4.67), root lenght (2.07 cm), fresh weight 0.36 g) and dry weight (0.043 g). Keyword : Cattleya orchid, BAP, in vitro, plantlets