Effects of root pruning to growth and root growth potential of Benguet pine (Pinus kesiya Royle ex Gordon) seedlings
Paper Details
Effects of root pruning to growth and root growth potential of Benguet pine (Pinus kesiya Royle ex Gordon) seedlings
Abstract
The country faces the dreaded consequences of its massive, deforested areas. To rehabilitate, restore, and preserve these areas, reforestation projects are needed and one of its essential activities is producing quality seedlings that could survive in harsh conditions. Thus, it is vital to consider a nursery management practice like root pruning that relatively assess nursery seedling quality and performance. The study was carried out to evaluate the effects of root pruning on the growth and root growth potential (RGP) of Benguet pine seedlings which is commonly used in the Cordillera Region, Philippines. The study was laid out following a completely randomized design with 4 treatments replicated 3 times: T0 – Control (not root pruned), T1 – root pruned (5cm from root collar), T2 – root pruned (7cm from root collar), and T3 – root pruned (10cm from root collar). The result showed that in terms of height growth, root pruned seedlings at 5cm from root collar (T1) obtained the highest value with 16.70cm. While relative to root collar diameter, number of lateral roots, root length, root and shoot dry weights, root-shoot ratio, sturdiness quotient, and seedling quality index, not root pruned seedlings relatively showed higher and favorable results with 0.78mm, 44.47, 51.53cm, 11.10g, 32.83g, 0.34, 14.16, 13.33, respectively. With the proper management, care, and maintenance, 100% survival rate has been observed in the study. Statistically, the results showed significant difference on the number of roots, root dry weight, root-shoot ratio, and seedling quality index, while comparable results on the height, root collar diameter, root length, shoot dry weight, and sturdiness quotient. Thus, it is relevant to consider some factors like frequency of root pruning treatment, age of the seedlings, duration of conduct, number of nodules, and soil and water management for seedlings for more reliable assessment of plant quality and performance.
Chauhan Sk, Sharma R. 2017. Growth and Quality Indices of Different Nitrogen Fixing Tree Nursery Plants. Indian Journal of Ecology 44(2), 344-347.
Comila G. 2007. Growth comparison between non-transplanted and root pruned transplanted and non-root pruned transplanted Germinants of Benguet Pine. Benguet State University, Philippines
Darnell R, Raya H, Williamson J. 2008. Root pruning effects on growth and yield and Red Raspberry. Hort. Science 43(3), 681-684.
Devine W, Harrington C, Southworth D. 2014. Improving Root Growth and Morphology of Containerized Oregon White Oak Seedlings. Tree Planters’ Notes 53(2), 29-34.
Dickson A, Leaf Al, Hosner JF. 1960. Quality appraisal of white spruce and white pine seedling stock in nurseries. Forestry Chronicle 36, 10-13.
Du Z, xing S, MA B, Liu F, Ma H, Wang Q. 2012. Effects of root pruning on the growth and rhizosphere soil characteristics of short-rotation closed-canopy poplar. Forestry Systems, 236-246.
Duryea M. 1986. Root and Shoot Pruning at Southern Nurseries. National Nursery Proceedings. Pensecola, Florida 114-129.
Farmer J, Pezeshki S. 2004. Effects of periodic flooding and root pruning on Quercus nuttalli seedlings. Wetlands Ecology and Management 12, 205-214.
Ganzon FG. 2003. Sustainable Forest Management of Benguet Pine in the Cordillera, Philippines. Ecosystems Research and Development Service, Department of Environment and Natural Resources (DENR)- Cordillera Administrative Region (CAR). http://www.fao.org/3/XII/0805-B1.htm.
Gazal R, Blanche C, Carandang W. 2004. Root growth potential and seedling morphological attributes of Narra (Pterocarpus indicus Willd.) transplants. Forest Ecology and Management 195, 259-266.
Gilman E. 1992. Effect of root pruning prior to transplanting on establishment of Southern Magnolia in the Landscape. Journal of Arboriculture 18(4), 197-200.
Gregorio N, Herbohn J, Harrison S. 2004. Small-scale forestry development in Leyte, Philippines: The central role of nurseries. Small-Scale Forest Economics, Management and Policy 3(3), 337-351.
Grossnickle SC. 2005. Importance of Root growth in Overcoming Planting Stress. New Forest 30, 273-294.
International Rice Research Institute [IRRI]. 2020. Statistical Tool for Agriculture Research (STAR). Quantitative Genetics and Biometrics Cluster. http://bbi.irri.org/products.
Jaenicke H. 1999. Good Tree Nursery Practices: Practical Guidelines for Research Nurseries. International Center for Research in Agroforestry, 1-91.
Khurram S, Burney O, Morrissey R, Jacobs D. 2017. Bottles to trees: Plastic beverage as an alternative nursery growing containers for reforestation in developing countries. PLoS ONE 12(5), 1-21.
Landis T, Luna T, Dumroese R. 2014. Containers. Tropical Nursery Manual, 123-139.
Lumbres RIC, Young JL, Calora JRFG, Parao MR. 2013. Model fitting and validation of six height-DBH equations for Pinus kesiya Royle ex Gordon in Benguet Province, Philippines, Forest Science and Technology 9(1), 45-50.
Na S, Lee D, Kim I. 2013. Influence of Initial Seedling Size and Root Pruning intensity on Growth of Transplanting Seedling of Quercus acutissma. Korean Journal of Plant Res 26(6), 709-717.
Napaldet JT, Gomez JRRA. 2015. Allometric Models for Aboveground Biomass of Benguet Pine (Pinus kesiya). International Journal of Scientific & Engineering Research 6(3), 182-187.
Racelis L, Racelis D, Villanueva T, Florece L, Carandang M, Lapitan R. 2017. Carbon Stock Potential of Benguet Pine (Pinus kesiya Royle ex Gordon) Stands within a Mining Site in Padcal, Benguet Province, Philippines. Ecosystems & Development Journal 7(2), 28-36.
Ritchie G, Dunlap J. 1980. Root growth potential: its development and expression in forest tree seedlings. N.Z. J. For. Sci 10(1), 218-248.
Ritchie G. 2003. 08: Root Growth Potential: Principles, Procedures and Predictive Ability. Reforestation, Nurseries and Genetic Resources (Rngr.Net) 93-105.
Takoutsing B, Tchoundjeu Z, Degrande A, Asaah E, Gyau A, Nkeumoe F, Tsobeng A. 2013. Assessing the quality of seedlings in small-scale nurseries in the highlands of Cameroon: The use of growth characteristics and quality thresholds as indicators. Springer – Small-scale Forestry 13(1), 65-77.
Yabes, MD. 2018. Seedling Growth and Root Growth Potential of Kamagong (Diospyros blancoi A. DC.) influenced by Root Pruning. UPLB, Laguna, Philippines.
Yeboah P, Yeboah J, Ansah F, Akrofi A, Ameyaw K. 2016. Influence of root and shoot pruning on field establishment and growth of overgrown cashew (Anacardium occidentale L.) seedlings. Journal of Horticulture and Forestry 8(7), 51-57.
Zhang R, Peng F, Yan P, Cao F, Liu Z, Le D, Tan P. 2015. Effects of Root Pruning of Germinated Pecan Seedlings. Hortscience 50(10), 1549-1552.
Cindy E. Poclis, Jay Mark G. Cortado, Jayric F. Villareal, 2023. Effects of root pruning to growth and root growth potential of Benguet pine (Pinus kesiya Royle ex Gordon) seedlings. J. Biodiv. Environ. Sci., 23(1), 144-152.
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