Effect of Auxin (IBA) in Sand and Coco peat media on rooting of Hibiscus (Hibiscus rosa‐ sinensis ‘yellow double hybrid’)

Abstract

Hibiscus rosa

†sinensis †sinensis

†sinensis

â€1) in sand and coco peat media

were used for evaluation of plant rooting in an experiment with completely

randomized design in three replications. The cuttings were selected when

they had 6

â€8 buds and their heights were 12â€10 cm. After sterilization and

hormonal treatment, cuttings were planted in 3 cm depth of media. In this

study, factors such as callus time, root initiation, number of buds, percentage

of rooting, number of roots and root length were determined. The

results showed that with increase in levels of rooting hormones, callus

induction time and time of root beginning was reduced. On the other hand,

percentage of green cuttings without root, percentage of rooting and number

of root in cuttings and length of roots produced in each cutting was increased.

According to the measured factors, treatment of 2000 mg l

â€1 was

better treatment in increasing percentage of rooting and other affecting factors

on the quality of cuttings in both medium.

‘yellow double hybrid’ is a hard rooting plant. Four

levels of IBA (0, 1000, 2000 and 4000 mg l