This study was conducted to find on the screening of a optimal variety after compare with characteristics of a colored soybean recommended and a vegetable soybean by pure line isolation from the indigenous variety in Chungnam area. The budding period in results compared with a budding property of testing varieties between the recommended colored soybean 6 varieties and the indigenous 3 varieties, was showed that it was delayed by increasing of a grain weight but the budding rate was not significant. And the harvest period was the most early day at the black colored soybean plot at the 30th July and was the latest day at the native variety (Nonsan jaerae) at the 21 th October. The stem length was showed a wide range from 25 to 104 cm, and the Asan jaerae in this result was the highest on 104 cm, but the Geomjeongolkong was the lowest on 25 cm. The number of pod per plant was searched about 9 to 111 range, and the most numerous plot in this experimental varieties was the Ilpumgeomjeongkong as 111 number, on the other hand, the least variety was the Asan jaerae as 9 number. The rate of more than 2 seed per pod in the vegetable soybean property was the highest at the Geomjeongolkong about 82%. Additionally, the Hwangkuemkong and Geomjeongkong 1 was relatively the high levels as 78% and 73%, respectively. At the pod yield per $1000\;m^2$ (10a) was the most much as 1,567 kg at the Ilpumgeomjeongkong. Also, the Sunheukkong and the Galmikong was 1,468 kg, 1,397 kg, respectively. Therefore, the Ilpumgeomjeongkong, Sunheukkong, and Galmikong were proper varieties for the vegetable cultivation.
Heavy snowfall events have occurred frequently in the Yeongdong region but understanding of these events have trouble in lack of snowfall observation in this region because it is composed of complex topography like the "Taebaek mountains" and the "East sea". These problems can be solved by quantitative precipitation estimation technique using remote sensing such as radar, satellite, etc. Two radars which are able to cover over Yeondong region were installed at Gangneung (GNG) and Gwangdeoksan (GDK). This study uses radar and water equivalent of snow cover to investigate the characteristics of radar echoes and the $Z_e-R$ relations associated with the 10 Yeongdong heavy snowfall events during the last 5 years (2010~2014). It was found that the heights which the probability of detection (POD) of snow detection by GNG radar is more than 80% are 3,000 m and 1,500 m in convective cloud and stratiform cloud, respectively. The vertical gradient of radar reflectivity is less decreased in convective cloud than stratiform cloud. However, POD by GDK radar are lower than 80% at all layers because the majority of Yeondong observational stations are more than 100 km away from GDK radar site. Furthermore, we examined $Z_e-R$ relation from the 10 events using GNG radar and compared the "a" and "b" obtained from these examinations at Sokcho (SC) and Daegwallyeong (DG). These "a" and "b" are estimated from radar echo at 500 m (SC) and 1,500 m (DG). The values of "a" differ in their stations such as SC and DG are 30~116 and 6~39, respectively. But "b" is 0.4~1.7 irrespective of stations. Moreover, the value of "a" increased with surface air temperature. Therefore, quantitative precipitation estimation in heavy snowfall events by radar echo using fixed "a" and "b" is difficult because these values changed according to those precipitation characteristics.
Kim, Young-Jin;Lee, Si-Myeong;Cho, Sang-Kyun;Oh, Young-Jin;Kim, Hag-Sin
KOREAN JOURNAL OF CROP SCIENCE
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v.55
no.2
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pp.139-143
/
2010
The relationship between ADP-glucose pyrophosphorylase (AGP) activity and the characteristics of related pod setting in developing seed of soybean cv. Pungsannamulkong, Iksannamulkong, Geumjeongkong #1 and Danpaheuk was studied. AGP activity during the accumulate of the majority of dry matter in all cultivars suggested that this enzyme might be associated with this process. At the Vn and R1 stages, AGP activity of full-grown leaves of Pungsannamulkong, Iksannamulkong, Geumjeongkong #1 was the highest and then decreased progressively. However AGP activity of Danpaheuk was the lowest and also had lower seed weight. So regulation of matter accumulation in developing soybean seeds may also depend on AGP activity. AGP capacities as expressed by AGP activity seem to have a good predicting value for the dry matter of leaf and seed at R1 to R5 stages in our series of R3 stage genotypes. Western blots probed with antibody specific to the subunit of potato AGP revealed a single 60KD immunoreactive band that changed in intensity during the growth cycle in association with changes in total AGP activity.
Proceedings of the Korean Society of Crop Science Conference
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2022.10a
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pp.78-78
/
2022
Food productivity in North Korea is about 50% lower than in South Korea. In order to increase the productivity of major crops, it is necessary to develop early maturing, disease resistance, and high-yielding varieties and apply them early. Since the late 1990s, North Korea has been actively developing potatoes, rice and com as major food crops, and soybeans are considered important as a protein-supplying crop. Domestic cultivated varieties, which are expected to be most adaptable eco-climatologically, are mainly selected from soil with high nutrient soil. It is necessary to test separately for adaptability in low organic soil. So it is very necessary to apply technology to improve soil improvement through rotational crop selection in the middle and long-term. Therefore, this study was conducted to test the adaptability to low organic soils of domestic cultivars and to select varieties. In 2021 there are twenty two (22) varieties of soybeans were grown in low organic soil at the field of Chungbuk National University. This year twenty two (22) varieties of soybeans were also grown in low organic soil at the field of Chungbuk National University. Sowing was done on June 10, the planting distance was 70cm × 15cm, after opening the cotyledons fully, the soybeans were thinned and leaving two plants per hole. In addition, various types of growth characteristics and quantitative components were investigated to evaluate the adaptability to low organic soil of domestic varieties. This study was conducted to investigate the growth characteristics and quantitative components of soybean varieties grown in low organic soil. The flowering period of 22 varieties of soybeans was about 14 days from July 22 to August 4. The flowers of the beans were white, purple, light purple and the pubescence color was gray and brown where most of them were gray. The highest plant height was up to 130.4 cm and lowest was 20.3 cm, highest stem length was up to 119.5 cm and lowest was 15.3 cm. Highest first pod height (FPH) was up to 34.0 cm and lowest was 3.0 cm. Highest stem diameter was up to 15.76mm and lowest was 1.76 mm. Number of main stem nodes was up to 19 and at least 1. Number of branch was up to 10 and at least 0. The number of pod per plant was up to 121. Bacterial pustule has been spread in soybean field.
Seo, Min Jung;Park, Myoung Ryou;Yun, Hong Tae;Park, Chang Hwan
Proceedings of the Korean Society of Crop Science Conference
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2017.06a
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pp.221-221
/
2017
This experiment was performed to analyze variation of growth traits of soybean to determine the information of less sensitive traits under different environmental conditions. Sowing was carried out on June 2 each year and the experimental plot was laid out in three replicates by randomized complete block design with thirty soybean varieties which consisted of 19 cultivars for beancurd and soypaste, 8 cultivars for soy-sprout including 1 landrace, and 3 cultivars for cooking with rice including 1 landrace during the period 2014-2015. The weather conditions during the experimental period were quite different with extremely low precipitation and longer sunshine duration in 2015 than 2014. The variation of characteristics related to growth period such as days of growth, days of maturity, days of flowering and the 100-seed weight was less in spite of different environmental conditions. While the variation of the number of pods per plant was high. Considering growth and seed characteristics like the number of pods per plant, the number of seeds per pod and 100-seed weight which are linked directly to the yield, cultivars such as Shingi, Daewonkong, Danbaegkong, and Daepung for beancurd and soypaste, Pungwon, Haepum and Shingang for soy-sprout and Seoritae for cooking with rice were more stable and could be expected to have high yield in Suwon, the south-central part of South Korea. These results could be useful for the selection of breeding resources to develop cultivars with high stability under changeable weather condition.
Kim, Hyun Tae;Han, Won Young;Lee, Byung Won;Ko, Jong Min;Lee, Yeong Hoon;Baek, In Youl;Yun, Hong Tai;Ha, Tae Joung;Choi, Man Soo;Kang, Beom Kyu;Kim, Hyun Yeong;Seo, Jeong Hyun;Kim, Hong Sik;Shin, Sang Ouk;Oh, Jae Hyun;Kwak, Do Yeon;Seo, Min Jeong;Song, Yoon Ho;Jang, Eun Kyu;Yun, Geon Sik;Kang, Yeong Sik;Lee, Ji Yun;Shin, Jeong Ho;Choi, Kyu Hwan;Kim, Dong Kwan;Yang, Woo Sam
Korean Journal of Breeding Science
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v.51
no.4
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pp.496-503
/
2019
The soybean cultivar, 'Saegeum', has been developed for preparing soy-paste and tofu. The soybean cultivars 'Daepung' and 'SS98207-3SSD-168' were crossed in 2003 to obtain 'Saegeum'. Single seed descent method was used to advance the generation from F3 to F5, and the plant lines with promising traits were selected from F6 to F7 by pedigree method. The preliminary yield (PYT) and advanced yield trials (AYT) were conducted from 2009 to 2010, and the regional yield trial (RYT) was conducted in 12 regions between 2011 and 2013. The morphological characteristics of 'Saegeum' were as follows: determinate plant type, white flower, tawny pubescence color, and brown pod color. Flowering and maturity dates were August 2, XXXX and October 17, XXXX, respectively. Plant height, first pod height, number of nodes, number of branches, and number of pods were 79 cm, 18 cm, 16, 2.3, and 44, respectively. The seed characteristics of 'Saegeum' were as follows: yellow spherical shape, yellow hilum, and the 100-seed weight was 25.4 g. 'Saegeum' was resistant to bacterial pustule and SMV in the field test, and its lodging resistance was mildly strong, whereas its shattering resistance was excellent. The ability of this cultivar to be processed into tofu, soybean malt, and other fermented products was comparable with that of 'Daewonkong'. The yield of 'Saegeum' in the adaptable regions was 3.02 ton ha-1. Thus, 'Saegeum' is adaptable to mechanized harvesting because of its high first pod height, as well as lodging and shattering resistance. (Registration number: 5929)
Park, Hyung-Pil;Kang, Hoon;Chi, Yong-Nam;Choi, Hee-Ju;Byeon, Young-Man;Kim, Young-Jin;Oh, Kwang-Yoon;Kim, Yong-Chan
Transactions of the Korean Society of Mechanical Engineers B
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v.34
no.9
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pp.809-816
/
2010
An environmental control system is installed to dissipate the thermal load in avionic equipments that are mounted under an aircraft. The operating characteristics of the system change with variations in the control parameters. In this study, an environmental control system was designed and built using R-124 by adopting a vapor compression cycle. The operating characteristics of this system were observed by varying the control parameters, such as refrigerant charging amount, opening of the expansion device, compressor rotation speed, and blower rotation speed. The effect of the control parameters on the environmental control system was analyzed and an optimum control method was identified.
Kim, Su-Kyeong;Kim, Dae-Ho;Son, Beom-Young;Kang, Dong-Ju;Han, Kyung-Soo
KOREAN JOURNAL OF CROP SCIENCE
/
v.42
no.2
/
pp.202-213
/
1997
In order to find out a high potential black soybean lines, of which demand has been increasing in Korea, twenty eight local cultivars were evaluated on agronomic characteristics and the classification of the cultivars was made by the cluster analysis. Days to maturity and days to growing of black soybeans were widely ranged from 58 to 82 days, and 117 to 148 days, respectively. Late maturing group showed over 140 maturity days, and heavy 100 seed weight. There was shown low yield potential in late maturing group, and growing days was positively correlated with flowering days, days to maturity, 100-seed weight and stem length, respectively. From the principal component analysis upper two components composed 76.5% cumulative eigen value to total. Nine varietal groups were identified in relations to their affinity of the black soybeans. Selected black soybeans, Namhae-2 and Hamyang-l were field-tested and those characteristics of many pod, small seed and high yield were found out to be suitable for sprouting.
Kim, Seok-Dong;Kim, Yong-Ho;Hong, Eun-Hi;Park, Eui-Ho
KOREAN JOURNAL OF CROP SCIENCE
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v.38
no.5
/
pp.432-436
/
1993
The improvement of superior black soybeans could be accomplished through maintenance and use of black soybean collections. This experiment was carried out to select pure-line from the domestic black soybean genotypes, and survey some agronomic characteristics of the collections. Nine hundred and sixty five lines of black soybeans were collected in 197 locations on spring, 1991. Higher distribution was present in broad leaves, purple flower color and tawny pubescence color which were approximate to be 97, 90 and 98%, respectively. In pod color of black soybean collections, 60% was brown and 27% was light brown and 10% was dark brown. The 61 to 70 days were required for flowering in 61 % of the collections. Growing days of 51 % of black soybean collections ranged 121 to 130, and those of 37 % were over 131 days.
Number of researches on efficient terminal operation system applying RFID(Radio Frequency Identification) are in progress. However, RFID has limitations on tracking and providing accurate positions of containers. In this paper, to enhance the performance of the integrated terminal operation system, an efficient loading management of yard is proposed by applying RFID based RTLS(Real Time Locating System) that provides real time accurate positions of containers. It was found that a group based sequence system is more efficient than the existing individual sequence number system in the container yard In the group based sequence system, the containers in the same group should have similar characteristics such as port of destination(POD), size, weight, etc. In order to run this system, we proposed the parameters to the unspecified N bytes of RFID tag which are specified in ISO 18000 7. And then, we developed an integrated operation system of container terminal using RFID. The proposed system reduces the ship turnaround time in ubiquitous port environments.
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