Clonal variation in adventitious rooting of taxus baccata l. stem cuttings

A study was conducted to examine the clonal variation, effect of cutting type and IBA treatment on adventitious rooting of Taxus baccata. Six clones were selected from different provenances in East Khasi Hills districts of Meghalaya, India. From each clones two types of cuttings (lignified and non lignified) were made and given four IBA treatments (0, 1000, 2000 and 5000 ppm). Results revealed that clonal variation was significant for all the cutting parameters. Among the six clones studied; C2 (Botanical Survey of India, Shillong, Meghalaya, India) have given the highest rooting response (45%).The influence of IBA treatment was significant only for rooting percentage and root length, where 1000 and 2000 ppm was most effective in stimulating the rooting. However effect of type of stem was insignificant for all the parameters except root number where lignified (2.16) cuttings exhibited higher value than the non lignified ones (1.54).