Articles
Seasonal variation of rooting of Ballota acetabulosa stem cuttings
Article number
1327_51
Pages
381 – 388
Language
English
Abstract
Ballota acetabulosa (L.) Benth. (Lamiaceae) is a compact evergreen shrub that grows to large populations in areas with dry, poor soil and rocky areas of south-eastern Greece and western Turkey.
It has upright growth, gray-green snowy foliage, blooming with pink-purple flowers in spring (May-July). With the ultimate aim of exploiting B. acetabulosa as an ornamental plant for urban and suburban landscape, with emphasis to green roofs and restorations of landscapes, such as archeological sites, the clonal propagation of the species was investigated.
Cuttings from the apical part of shoots, 15 cm long, were collected from wild plants of West Attika-Greece, in spring (March), summer (August), autumn (October) and winter (January) 2013 and 2014. The bases of the cuttings were immersed either in rooting powder containing indole butyric acid (IBA) for herbaceous/softwood or hard wood cuttings (0.066 or 0.2% w/w ΙΒΑ in talcum, respectively), or in IBA ethanol-water (1:1, v/v) solutions, at concentrations of 0 (control), 1000, 2000 or 3000 mg L‑1, for two dipping times, 1 or 5 min.
Then they were set for rooting on a mix of peat: perlite (1:1, v/v), in a mist system for two weeks and then on a heated-glasshouse bench for further six weeks.
The rooting of cuttings was affected by both season and concentration and application method of rooting hormone.
Most effective rooting was achieved in spring, after treatment with 2000 or 3000 mg L‑1 ΙΒΑ solution for 1 min (88-98%), as well as in autumn, after treatment with 2000 mg L‑1ΙΒΑ solution for 5 min (83%). Summer was the most inappropriate season for rooting cuttings, with the rooting rate not exceeding 30%. Regarding the use of IBA rooting powder, that for hard wood cuttings was more effective (rooting rates varied from 25 to 52%) than that for herbaceous/softwood cuttings (rooting rates less than 25%), in all seasons.
It has upright growth, gray-green snowy foliage, blooming with pink-purple flowers in spring (May-July). With the ultimate aim of exploiting B. acetabulosa as an ornamental plant for urban and suburban landscape, with emphasis to green roofs and restorations of landscapes, such as archeological sites, the clonal propagation of the species was investigated.
Cuttings from the apical part of shoots, 15 cm long, were collected from wild plants of West Attika-Greece, in spring (March), summer (August), autumn (October) and winter (January) 2013 and 2014. The bases of the cuttings were immersed either in rooting powder containing indole butyric acid (IBA) for herbaceous/softwood or hard wood cuttings (0.066 or 0.2% w/w ΙΒΑ in talcum, respectively), or in IBA ethanol-water (1:1, v/v) solutions, at concentrations of 0 (control), 1000, 2000 or 3000 mg L‑1, for two dipping times, 1 or 5 min.
Then they were set for rooting on a mix of peat: perlite (1:1, v/v), in a mist system for two weeks and then on a heated-glasshouse bench for further six weeks.
The rooting of cuttings was affected by both season and concentration and application method of rooting hormone.
Most effective rooting was achieved in spring, after treatment with 2000 or 3000 mg L‑1 ΙΒΑ solution for 1 min (88-98%), as well as in autumn, after treatment with 2000 mg L‑1ΙΒΑ solution for 5 min (83%). Summer was the most inappropriate season for rooting cuttings, with the rooting rate not exceeding 30%. Regarding the use of IBA rooting powder, that for hard wood cuttings was more effective (rooting rates varied from 25 to 52%) than that for herbaceous/softwood cuttings (rooting rates less than 25%), in all seasons.
Authors
G. Vlachou, A.N. Martini, A. Akoumianaki-Ioannidou, M. Papafotiou
Keywords
adventitious root formation, auxin application time, IBA-ethanol water solution, indole butyric acid (IBA), quick dip, rooting powder, season
Groups involved
- Division Plant Genetic Resources, Breeding and Biotechnology
- Division Tropical and Subtropical Fruit and Nuts
- Division Temperate Tree Fruits
- Division Vine and Berry Fruits
- Division Ornamental Plants
- Division Vegetables, Roots and Tubers
- Division Plant-Environment Interactions in Field Systems
- Division Greenhouse and Indoor Production Horticulture
- Division Postharvest and Quality Assurance
- Division Precision Horticulture and Engineering
- Division Horticulture for Human Health
- Division Temperate Tree Nuts
- Division Landscape and Urban Horticulture
- Division Sustaining Horticulture in a Changing World
- Working Group Humulus and Other Cannabaceae
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