Cutting propagation potentials of rejuvenated stock plants of Arbutus unedo L. genotypes
Cutting propagation of many woody plants is possible with cuttings. It is more favourable and increases the success rate if the cuttings are obtained from healthy and rejuvenated plants. Arbutus unedo L. is an important plant for the Mediterranean climate and for rural people, living near these natural resources. Sustainable management of these natural plantations is important and sapling production is required for the establishment of new plantation areas for strawberry tree cultivation. In this study, selected Arbutus unedo L. genotypes were used as a plant material. In mid-July, when the yearly obtained shoots just started to lignify, cuttings were collected from two genotypes (UL1 and NM2). Ten cuttings with three replicates were studied and each experiment was repeated at least once. The collected cuttings were treated with IBA (2, 4, 6, 8 and 10 g L‑1) and placed into misting system beds in the greenhouse. Rooting responses (as survival rate %, rooting percentage %, root number, root length cm), shoot formation (%) during the rooting process, and callus formation (%)) were measured. Rooting values was evaluated after six months and data were recorded. The survival rate of cuttings was higher in genotype NM2 (76.67%). Four g L‑1IBA was the most effective dose on rooting rate in both of two genotypes. Shoot development was observed in more than half of the cuttings in both of genotypes and 4 g L‑1 IBA was significantly effective. Adaptation rates of rooted cuttings were very high after transfer to soil and IBA treatment positively affected the growth. As a result, rejuvenation of stock plants is recommended to increase the success rate of cutting propagation.
Sulusoglu Durul, M. and Efe, İ. (2020). Cutting propagation potentials of rejuvenated stock plants of Arbutus unedo L. genotypes. Acta Hortic. 1280, 123-128
strawberry tree, rejuvenation, cutting, IBA, rooting