Effect of cutting time, cutting length and hormone on rooting and germination of Vitex pseudo-negundo (Hausskn.) Hand-Mzt. cuttings

Document Type : Research article

Authors

1 M.Sc. student Forest Ecology and Silviculture, Faculty of Natural Resources, Behbahan Khatam Alanbia University of Technology, Behbahan, Iran

2 Associate Prof., Department of Forestry, Faculty of Natural Resources, Behbahan Khatam Alanbia University of Technology, Behbahan, Iran

3 Associate Prof., Department of Forestry and Forest Economics, Faculty of Natural Resources, University of Tehran, Karaj, Iran

4 M.Sc. Horticultural Science, Behbahan Municipality, Behbahan, Iran

Abstract

Vitex pseudo-negundo (Hausskn.) Hand-Mzt. is a shrub that is height of about 1-2 meters. To study vegetative propagation of Vitex pseudo-negundo experimental was conducted using a‌ 6 × 3 × 2 factorial design based on completely randomized design with 4 replications and 30 cuttings per treatment in Behbahan municipalities' greenhouse. The experiment factors included: Cutting time at 6 levels (22 December and 5 January, 21 January and 4 February, 20 February and 6 March), Cutting length at 3 levels (15, 20 and 25 cm) and NAA hormone at 2 levels (with hormones and hormone-free). Results showed that the cuttings taken in 21 January, 20 February and 6 March have the highest rooting and germination percent and root number. The highest (rooting and germination percent) and (root number and root dry and fresh weight) were observed in length cuttings of 15, 20 cm and 25 cm respectively. The interaction effect of hormone and cutting time and cutting length, indicator being more dry weight, fresh weight and root diameter in cuttings with hormone taken in 20 February with a length of 25 cm. The use of hormone has the negative effect on rooting and germination percent and root length. In this study, the best result was achieved for cuttings taken in 20 February, with a length of 25 cm and without the use of hormones.

Keywords

References

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