Factors involved in ex vitro rooting of Acalypha wilkesiana, Ficus microcarpa var. crassifolia, bougainvillea glabra and Vitex rotundifolia stem cuttings

الملخص EN

Greenwood terminal cuttings of Acalypha wilkesiana were treated with Dip ‘N grow (1: 0.5 IBA: NAA) solutions in concentrations ranging from 0 to 4000 ppm of active ingredients, and inserted into 1:1 vermiculite: perlite.

Six weeks after initial treatment the best rooting indices were found for 0 and 1000 ppm, while the best rooting percentage, 96.72%, was obtained with 1000 ppm.

As well as, stem cuttings of Ficus microcarpa var.

crassifolia were inserted into vermiculite, Styrofoam, and a mixture of vermiculite and Styrofoam to examine the effects of propagating medium on rooting cuttings.

Six weeks after propagating, the best rooting index and percentage (3.37, 91.67%) were found for the mixture of vermiculite and Styrofoam medium.

The highest number of survival cuttings (91.65%) was also obtained from the use of the mixture of vermiculite and Styrofoam.

Middle and base stem cuttings of Bougainvillea glabra, were inserted into vermiculite medium to examine the effects of age of wood and presence or absence of leaves on root cuttings.

Twelve weeks after propagating, the best rooting index and percentage were found for base with leaves cuttings (3.17 and 33.4%) respectively.

Stem cuttings of Vitex rotundifolia were treated with IBA (1000 ppm), BA (100 ppm) and the combination between IBA and BA solutions and inserted into vermiculite.

Nine weeks after initial treatment the best rooting indices were found for 1000 ppm IBA, while the best rooting percentage, 100% was obtained with 1000 ppm IBA and 100 ppm BA.

The longest shoots were obtained from the combination between IBA and BA.