Mr. Anthony Antwi-Wiredu, Patience Mansa Gakpetor, Reginald Tang Guuroh, Ebenezer Ofori, and Mr. Daniel Aninagyei Ofori, from the Institute of the CSIR-Forestry Research Institute of Ghana, KNUST, Kumasi, Ghana, wrote a research paper about Root cuttings technologies of Paulownia tree species for mass production. Let’s get some knowledge about the rooted cutting of the Paulownia Tree!
Abstract
Paulownia is a multipurpose tree with high-quality wood features including machining qualities, rot resistance, fast growth, a good tree form, high yield, light wood weight and good potential for plantation and agroforestry. In 2012, Paulownia was introduced into Ghana under the FC/Industry plantations project for field trials at Asenanyo and Pra-Anum Forest Reserves. Recent field assessment depicted their inability to produce viable seeds for propagation. Thus, vegetative propagation techniques were investigated to possibly produce high-quality planting materials for large scale Paulownia (P. elongata and P. fortunei) plantations. Root and stem plant materials were collected from Pra-Anum Forest Reserve. They were treated with 0.0% (control), 0.1%, and 0.3% Indole-3-Butyric Acid (IBA) levels and planted in polyethylene bags filled with loamy soils and kept under shade. Root cuttings were planted horizontally in a 2×3 factorial design with 10 cuttings per treatment replicated 4 times. Stem (bi-nodal leafless hardwood) cuttings were vertically planted in 2×4 factorial design, 10 cuttings per treatment at 3 replications. A completely randomized design (CRD) was used. The root cuttings of both species survived irrespective of IBA levels. A significant variation (P≤0.05) was observed in the survival rate (over 75%), sprouting and rooting abilities. The stem cuttings were not successful, though, they developed shoots and leaves at the initial stages. In conclusion, vegetative propagation of Paulownia particularly, root cutting is possible for the multiplication of planting materials for plantation establishment. It is ill-advised to use lignified brown stem/ hardwood cuttings for the propagation of Paulownia.
Published By the Journal of Biodiversity and Environmental Sciences | JBES
Publisher Name International Network For Naturak Sciences | INNSPUB
Introduction
Paulownia tree belongs to the monogenetic family Paulowniaceae of the Scrophulariaceae family. It is a deciduous tree that originated from East Asia. Its wood has a high economic premium due to the timber export value of billions of dollars. Paulownia tree is grown to serve numerous purposes ranging from reforestation and aesthetic purposes to the environmental protection due to its fast growth ability and beautiful large leaves, mauve flowers and aroma.
The ability of the tree to grow rapidly makes it a favorable economic choice to harness large quantities of biomass (60-80ton/ha) within a short frame of time (Danciu et al., 2016). Also, the tree can be planted for soil reclamation, green manuring, fodder, herbal medicine and as a windbreak (Johnson, 2000). The tree is propagated by both sexual and asexual means. There are many merits associated with vegetative propagation of Paulownia making it the most effective means over seedling production. Seeds of Paulownia exhibit slow germination growth and slower growth of seedlings which is not the case of planting materials raised from root or shoot cuttings or rooted shoots from tissue culture (Bergmann and Moon, 1997). Paulownia trees have multiple uses including its application in a short-rotation woody crop plant, afforestation, mine site reclamation, managed plantations and intercropping systems (Bergmann and Moon, 1997, Wang and Shogren, 1992, Zhu et al., 1986, Carpenter, 1977). The leaves of Paulownia are also good for fertilizer and animal feeds, and their flowers used in honey production and wood for solid wood products (Zhu et al., 1986). Paulownia, can be used for the production of energy, wooden building materials, and paper pulp (Bergmann and Moon, 1997). As an introduced tree species into Ghana planted at Asenanyo and Pra-Anum Forest Reserves, there was a need to increase the production level to cover a large area of land to reap the tremendous environmental and economic benefits it presents. The premier trial when the tree species was introduced into Ghana was carried out through sexual propagation.
Therefore, there was a need to find the best alternative propagation methods to increase the number of planting materials and subsequently be used in the expansion of the area of cultivation. On that note, this purpose could only be realised through the use of vegetative propagation techniques. The experiment was to use stem and root cutting propagation technologies to ensure success in the rooting and sprouting potentials of Paulownia tree (P. elongata and P. fortunei) species in Ghana. The number of Paulownia planting materials would be increased for possible large-scale production in Ghana. Also, Paulownia clones of similar and high genetic traits would be maintained coupled with early maturity rate. An alternative mass macropropagation protocol for the tree species in Ghana was accomplished. The main objective was to determine the effective propagation of the two P. elongata and P. fortunei species through root cuttings and stem (bi-nodal leafless hardwood) cuttings. The specific objectives included determining the survival, sprouting and rooting abilities of root cuttings between the two Paulownia species as influenced by IBA levels; and the survivability, sprouting and rooting potentials of stem cuttings between the two Paulownia species as influenced by IBA combinations. Get the full articles by following the link Vegetative propagation technologies using stem and root cuttings of Paulownia (P. fortunei and P. elongata) tree species for mass production
Reference
Antwi-Wiredu A, Amiteye S, Diawuoh RG, Klu GYP. 2018. Ex Vitro propagation of rubber tree (Hevea brasiliensis) using stem cuttings, International Journal of Environment, Agriculture and Biotechnology (IJEAB) 3(3), 846.
Bergmann BA, Moon HK. 1997. In vitro adventitious shoot production in Paulownia, Plant Cell Reports 16, 315-319.
Brammer H. 1962. Soils. In: Wills, J. B., ed. Agriculture and land use in Ghana, Ministry of Agriculture, Accra, Ghana. London, UK, Oxford University Press 84-114.
Carpenter SB. 1977. This “Princess” heals disturbed land. American Forestry 83, 22-23.
Danciu A, Vlădut V, Grigore I, Sorică C, Cristea MA, Muscalu A, Pruteanu A, Marin E, Usenko M. 2016. Considerations on the Importance of the Paulownia Trees Planting, ANNALS of Faculty Engineering Hunedoara– International Journal of Engineering 4, 73-80.
Dick JMcP, Leakey RRB. 2006. Differentiation of the dynamic variables affecting rooting ability in juvenile and mature cuttings of cherry (Prunus avium), Journal of Horticultural Science and Biotechnology 81(2), 296-302.
Drvodelić D. 2018. Propagation of Paulownia by root cuttings. Šumarski List No 5(6), 297, 307.
Forest Inventory Project FIP. 1989. Forest inventory project report: Pra-Anum Forest Reserve. Ghana Forestry Department, Kumasi, Ghana and the Overseas Development Administration, London, U.K.
Ghana Statistical Service GSS. 2014. Population and housing census, district analytical report, Ejisu-Juaben Municipality.
Haissig BE. 1986. New Root Formation in Plants and Cuttings, M.B. Jackson (Ed.), Martinus Nijhoff, Dordrecht 141.
Hall JB., Swaine MD. 1981. Distribution and ecology of vascular plants in a tropical rain forest: Forest vegetation in Ghana. Geobotany. Junk Publishers, The Hague, 383 pp.
Johnson DV. 2000. Use of Paulownia for Forest Plantations in the Leon Region of Nicaragua, Nicaragua Agriculture Reconstruction Assistance Program, International Inc. United States Agency for International Development Managua, Nicaragua.
Ky-Dembele C, Tigabu M, Bayala J, Savadogo P, Boussim IJ, Odén PC. 2010. Clonal propagation of Detarium microcarpum from root cuttings. Silva Fennica 44(5), 775-786.
Leakey RRB. 1985. The capacity for vegetative propagation in trees. In: Cannell, M.G.R.; Jackson, J. E., (eds.). Attributes of trees as crop plants. Abbotts Ripton, Institute of Terrestrial Ecology 110-133.
Maile N, Nieuwenhuis M. 2010. Vegetative propagation of Eucalyptus nitens using stem cuttings. South African Forestry Journal 175, 29–34.
Salkić B, Salkić A, Keran H, Noćajević S, Salkić E, Imširović E. 2018. Production of Seedlings of Fast – Growth Tree of Paulownia elongata S. Y. Hu. International Journal of Plant and Soil Science 25(1), 1-8, 2018.
Snedden J, Landhäusser SM, Lieffers VJ, Charleson LR. 2010. Propagating Trembling aspen from root cuttings: impact of storage length and phenological period of root donor plants. New Forests 39(2), 169-182.
Stenvall N, Haapala T, Pulkkinen P. 2006. The role of a root cutting’s diameter and location on the regeneration ability of hybrid aspen. Forest Ecology and Management 237(1-3), 150-155.
Stenvall N, Piisilä M, Pulkkinen P. 2009. Seasonal fluctuation of root carbohydrates in hybrid aspen clones and its relationship to the sprouting efficiency of root cuttings. Canadian Journal of Forest Research 39(8), 1531–1537.
Wang Q, Shogren JF. 1992. Characteristics of the crop-Paulownia system in China, Agriculture, Ecosystems and Environment 39,145-152.
Zhu ZH, Chao CJ, Lu XY, Xiong YG. 1986. Paulownia in China: cultivation and utilization by the Chinese Academy of Forestry Staff, Asian Network for Biological Sciences and International Development Research Centre.
Zimmerman RH. 1976. Juvenility in woody perennials. Acta Horticulture 56, 3-317. (Proc. International Society for Horticultural Science Symposium, Maryland and West Berlin, 1975).
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