• Horticulture, Environment, and Biotechnology : HEB
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• v.59 no.6
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• pp.787-804
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• 2018

Flavor quality is import for determining consumer perception and acceptance of tomato products. In this study, 'Fendou' tomato fruit were harvested at six ripening stages and sampled to investigate the development of flavor-relevant compounds during vine ripening. Results showed that upon the initiation of ripening there was an increase in respiration rate and concomitant ethylene evolution that was associated with increased membrane permeability. In accordance with these physiological changes, flavor-relevant compounds demonstrated different expression patterns as fruit ripened, which contributed to 'red-ripe' flavor characteristics of red-ripe fruit. Based on correlation analysis between ethylene evolution and the flavor-relevant compounds during 'Fendou' tomato ripening and the other researchers' reports, the activation of System 2-dependent autocatalytic ethylene production plays an important role in the development of most flavor-relevant compounds during tomato vine ripening. Overall, our results suggested that most flavor-relevant compounds that accumulated the most during tomato fruit ripening at red stage could be under ethylene regulation and were among the most important contributors to the 'red-ripe' flavor. Due to the development of these compounds, the flavor quality at late ripening stages is different from that of fruit at early ripening stages.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.18 no.10
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• pp.48-53
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• 2017

One of the policies of the Ministry of Agriculture, Forestry and Livestock Food and Livestock aims to export $10 billion worth of products. Although it was not easy to achieve the export goal of $ 6.5 billion in 2016, the policy should be pursued continuously. Accordingly, a facility modernization project and high-tech greenhouse project are being implemented to facilitate exports. Moreover, it is possible to consider substitution of imports in the policy shift. Imports of temperate and tropical fresh fruits totaled 1.2 trillion won in 2016. Accordingly, identification of alternatives to tropical and temperate fresh fruit imports will enable farm income to increase and the fresh fruit industry to grow. The major obstacle to tropical fruit production in Korea is high heating costs. However, Jeju Island apple mango farmers found that using non-taxable kerosene and hot water from power plants could reduce heating costs by 42.5%. Indeed, using hot wastewater can reduce heating costs by more than 40%. To improve competition with imported fruits, farmers can change their heating systems using financial support plans (e.g., 20% government subsidies, 20% loans, 30% subsidies from local governments). The income effect and import substitution effect of fruit tree farmers should be carefully analyzed in the future and the study will be closed to discuss the policy direction.

• Journal of Food Hygiene and Safety
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• v.25 no.3
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• pp.245-250
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• 2010

The post-harvest concentration change of four kind of pesticides, captan, chlorpyrifos, methidathion and kresoxim-methyl was investigated with the storage period for the import fruit. Then the post-harvest concentration was set to 1000, 250, 400 and 157 $mgkg^{-1}$ for captan, chlorpyrifos, methidathion and kresoxim-methyl respectively. In case of captan, 0.9-12.5 $mgkg^{-1}$ in total fruit base and ND-0.23 $mgkg^{-1}$ in the sarcocarp were measured after atomization and 0.7-3.2 $mgkg^{-1}$ in total fruit base and ND-0.67 $mgkg^{-1}$ in the sarcocarp were measured after four week. For chlopyrifos, menthidathion, and kresoxim-methyl 0.4-2.2, 0.7-3.1 and 1.3-2.1 $mgkg^{-1}$ in total fruit base and ND-0.32, ND-0.05 and ND-0.16 $mgkg^{-1}$ in the sarcocarp were measured after atomization respectively. After four week 0.3-0.9, 0.4-2.0 and 1.3-1.8 $mgkg^{-1}$ in total fruit base and ND-0.02, ND-0.05 and ND-0.15 $mgkg^{-1}$ in the sarcocarp were investigated for other three pesticides. The concentration decreasing ratio of pesticides was largest for captan, 52% and other components were in order of chlopyrifos, menthidathion, and kresoxim-methy, 47, 41, 11% each other.

• Journal of Sericultural and Entomological Science
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• v.51 no.1
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• pp.48-55
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• 2013

Though mulberry fruit is known to a by-product that was produced from mulberry tree after harvesting leaves for silkworm rearing, as a yield and consumption of mulberry fruit was increased, it has been fixing to a new income crop. But, a stable production of mulberry was issued on damage by the weather disaster, so it is requires that agricultural disaster insurance import. So, in this study as a basic research for a importation of agricultural disaster insurance, the cultivation of mulberry for produce mulberry fruit, the shape of tree, the number of a bearing fruit from each cultivar, the occurrence of mulberry fruit sclerotic disease, and a yield and the market price of mulberry fruits were investigated and that results obtained were as follows; The number of mulberry tree each 10a was abundant in Buan and Yangpyung region that cultivated a suitable cultivar on low cut shape, however, a large cultivated Gochang region was little. The number of a bearing fruit each the longest branch was abundant in the order of Gwasang No. 2, Suwonppong, Iksuppong, and Cheongilppong. Yield of mulberry fruit each 10a was abundant in the order of Cheongilppong, the second number of Gwasang No. 2, Suwonppong, Iksuppong, and yield of mulberry fruit each the age of three mulberry tree was abundant in older tree, however, the second number of Gwasang No. 2 was the opposite. Sale price of the mulberry fruit was highest in Gyeonggi Yangpyeong, and Jeonbuk Gochang was the opposite.

• The Journal of Asian Finance, Economics and Business
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• v.8 no.5
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• pp.607-616
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• 2021

The European Union Vietnam Free Trade Agreement (EVFTA) took effect on August 1 paving the way for increased trade between the EU and Vietnam; this marked a huge turning point for the Vietnamese economy. Agriculture products, especially fruits, must be listed when it comes to Vietnam export industries that profit the most from EVFTA. After a period of study, with the desire to contribute to the improvement in the efficiency of Vietnam's agricultural products to the EU, the researchers want to assess the impact of the EVFTA on the flows of Vietnamese fruits to the EU market. The study uses a quantitative analysis method via the WITS-SMART model with data on export turnover and tariff reductions in parallel with the analysis of changes in factors affecting the trade flows of fruits between the two markets when the EVFTA takes effect. As a result, Vietnam's fruit importing from the EU is expected to escalate by 29.18% in 2021, while the flow of export will only inch up by 0.955%, which is rather low compare to the increase in import value. Hence, effective policies must be introduced in Vietnam to innovate production methods and increase product quality, so that the EVFTA can be used to boost Vietnam's fruit exports to the EU.

• Korean Journal of Organic Agriculture
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• v.23 no.4
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• pp.703-713
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• 2015

A Linear Approximated Inverse Almost Ideal Demand System, suggested by Eales and Unnevehr, is estimated with monthly data set of Korean fruits consumption. LA/IAIDS consists of 6 demand equations which correspond to domestically produced Hanrabong, overwintering mandarin, strawberry, melon and tomato with imported orange. The results indicate that price and scale flexibilities are negative, as expected. And the significance is that a 10% increase in imported orange quantity is associated with 5.5% declines in the price of Korean Hanrabong while the price of other fruits is minimally affected. In addition, the estimate of scale flexibility of Hanrabong (-2.96) is much smaller than any other fruit. Hanrabong farmer might be in the face of deficit operation as a consequence of the substitution effect if orange would be imported in accordance with the Korea-U.S. free trade agreement.

• Journal of Practical Agriculture & Fisheries Research
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• v.21 no.1
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• pp.5-13
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• 2019

The first commercial planting of sweet cherry in Korea is thought to be done in early 1920s. The planting area of sweet cherry in Korea is about 500 ha in 2017. Although sweet cherry is considered a minor fruit in Korea, it is one of premium fruits in market and popular among children and women, especially among pregnant women. The import of sweet cherry fruits has increased dramatically in recent years. Seedlings of Prunus lannesiana or clones of 'Colt' (P. avium × P. pseudocerasus) were usually used as sweet cherry rootstocks in Korea. During recent decades new dwarfing rootstocks for cherry such as 'Gisela' series were developed in Germany. Among them, several 'Gisela' series have been mainly used in international nurseries. In this study, we investigated optimum rooting condition of a dwarfing rootstock 'Gisela 5' in summer season cuttings. Among eight soil conditions tested, saprolite + commercial nursery soil (1:1) and saprolite + vermiculite (1:1) showed higher rooting percentage than others, showing 93.6% and 88.9%, respectively. More than 95% of 'Gisela 5' rootstocks produce roots when it was treated with IBA for several seconds just before cuttings, irrespective of concentrations (500 to 2000 mg·L^-1).

• International Commerce and Information Review
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• v.15 no.3
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• pp.333-352
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• 2013

Various trade competitiveness-related indices such as TSI, CACI, MCAI, and IITI are applied to examine the trade structure of comparative advantage and complementarity between Jonnama and Chinese on agricultural and Fisheries industry using the data of years 2000-2012 of KITA. The result show that Joennam has specialized in the product of other products of animal origin and preparations of vegetables, fruit, nuts, other par. The Intra-Industry trade level of Korean agricultural and Fisheries industry were in the trend of uprising with vertical intra-industry pattern dominant among them in the product live trees other live plants, edible vegetables roots, oil seeds oleaginous fruit, other vegetable saps extracts, preparations of cereals flour starch. As expected, Jeonnam region show that the high quality vertical IIT, indicating that Jeonnam export high-priced high quality products to China and import cheap low quality items from China. Finally, the innovation of production system, distribution modernization, value-maximizing strategies were suggested as a strengthening method of competitiveness.

• Journal of Mushroom
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• v.15 no.2
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• pp.84-87
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• 2017

Although ear mushroom (Auricularia auricula-judae) is cultivated worldwide, there are a limited number of commercial cultivars in Korea. Recent increase in the import of ear mushroom from China threatens the domestic farming. The present study introduces a new thermotolerant cultivar of ear mushroom, designated 'Hyeonyu', developed by mating monokaryons obtained from JBAA11 and CAA1 strains. The optimal growth temperature for Hyeonyu was 26-36?. The periods of primordia formation and fruit-body growth were 27 and 15 days, respectively. The average mushroom yield per bag (1 kg) was 350 g. Random amplification of polymorphic DNA (RAPD) analysis with OPA1 and OPA7 primers identified polymorphic DNA bands between the control, the new variety Hyeonyu, and a Chinese variety.

• Journal of Sericultural and Entomological Science
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• v.53 no.1
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• pp.19-28
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• 2015

Though mulberry fruit is known to a by-product that was produced from mulberry tree after harvesting leaves for silkworm rearing, as a yield and consumption of mulberry fruit was increased, it has been fixing to a new income crop. But, a stable production of mulberry was issued on damage by the weather disaster, so it is requires that agricultural disaster insurance import. So, in this study as a basic research for a importation of agricultural disaster insurance, the cultivation of mulberry for the production of mulberry fruits, the shape of tree, the number of a bearing fruit from each cultivar, the occurrence of mulberry fruit sclerotic disease, and a yield and the market price of mulberry fruits were investigated and that results obtained were as follows; The number of mulberry tree each 10a was abundant in Buan and Jeongeup region that cultivated a suitable cultivar on low cut shape, however, a large cultivated Gochang region was little. The number of a bearing fruit per 1m on the branch was highest in the variety of Cheongilppong at Gochang. Yield of mulberry fruits each 10a was Cheongilppong at Gochang, followed by Iksuppong at Sangju. Average sale price of the mulberry fruits was high in the order of Gwasang No. 2, Suwonppong, Iksuppong, and Cheongilppong.