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DocumentNewly proposed harvest method, branch-cut harvest for Aralia elata extends cold storage life and maintains the quality of edible shoots
XV World Forestry Congress, 2-6 May 2022
2022Also available in:
No results found.Aralia elata which is called “Dureup” in Korea, is one of the indigenous species in Korea having 1-6 m height, 8-10 cm root collar diameter with brown-gray bark and canary yellow fresh branches and sparse fine thorns. The edible young shoot of A. elata is well-known for its high nutrients and medicinal effects which is helpful to human health. In despite of the nutritional advantages, it is hard to store more than one week in cold storage due to its vigorous metabolic activities after harvest. The objective of this study was to examine the effects of branch-cut harvest method on shoot quality characteristics and storability compared with the shoot harvested with conventional method. The harvest method was divided into two conditions; 1) shoot was nipped off with hands, named shoot harvest (SH) and 2) 5 cm of branch cut with the shoot using pruning scissor, named shoot with branch-cut harvest (SBH).
The bunches of shoots from each harvesting method were collected into plastic boxes and then stored at 3±1 °C for 7 weeks.
After 4 weeks of storage, weight loss of SH (17.1%) was about two-fold higher than SBH (9.1%). Additionally, water content of SH decreased 81.9% to 75.9%, while SBH showed 81.9% at harvest and 80.5% after 4 weeks. Lightness of shoot leaves in SH was lower than SBH during whole storage period. Wilt, decay and off-odor index (0-5) showed 1.2, 5.0 and 0.7 in SH while 3.8, 3.8 and 3.7 in SBH after 4 weeks, respectively. Overall quality index (0-15) was rapidly decreasing 15.0 to 7.3 in SH while SBH slightly reduced 15.0 to 12.2 after 4 weeks. These results indicate that the quality of A. elata shoot mainly affected by wilt and off-odor index after harvesting.
In conclusion, it is able to maintain product quality for 4 weeks after harvest to use the SBH method, which is a remarkable extension storage life of A. elata. Keywords: Food systems, Human health and well-being, Innovation, Research, Value chain ID: 3622939 -
ArticleEffect of cutting dimensions, rooting media and incubation on vegetative propagation of Prunus armeniaca
XV World Forestry Congress, 2-6 May 2022
2022Also available in:
No results found.Propagation through cuttings of Prunus armeniaca – a tree borne oilseed of mid hills and dry temperate regions in India was tested by using three treatments. Vegetative propagation provides the opportunity in multiplication by cuttings by providing true-to-its-type plant and producing superior individuals. Effect of length and diameter, type and concentration of auxin and incubation method and duration on rooting of cuttings in wild apricot was studied. The study concluded that the optimal condition for rooting percentage in P. armeniaca is maximum using the incubator for 18 days on cutting length of 15 cm and cutting diameter of 1.0-1.5 cm after the application of IBA @ 5000 ppm. The survival percentage was also enhanced from 50.00 % to 53.33 % when cutting length of 15 cm and cutting diameter of 1.0-1.5 cm with IBA @ 5000 ppm incubated for 18 days at 30oC. Keywords: Adaptive and integrated management, Research, Biodiversity conservation, Knowledge management, Economic Development ID: 3486459 -
DocumentSocio-economic effects of using timber harvested in forest development sites
XV World Forestry Congress, 2-6 May 2022
2022Also available in:
No results found.In S. Korea, a resource-poor country, forest developments have been continuous for industrial development and economic growth. In 2019, about 7,000 ha of forest are developed for construction of roads, factories, etc. Timber harvested in these sites are about 1,44 million tons per year. In the past, 97% of timber harvested in forest development sites were treated as waste, and the remaining 3% were transplanted into landscape trees. In 2017, a system(the sell by public auction) for the utilization of timber harvested in forest development sites was established, and that operated by Korea Forestry Promotion Institute(KoFPI). Through the system, various socio-economic values such as generation of sales revenue, reduction of waste treatment costs can be obtained. Currently, 44,000 tons of timber harvested in forest development sites have been sold by public auction, it generated about USD 4.24 million in socio-economic value, including sales revenue and reduction of waste treatment costs. The KoFPI is contributing to increasing the use of wood and revitalizing the wood industry by utilizing waste wood resources. Keywords: Economic Development ID: 3623098
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