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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
> Journal Vol & Issue
Korean Journal of Crop Science
Journal Basic Information
Journal DOI :
The Korean Society of Crop Science
Editor in Chief :
Volume & Issues
Volume 55, Issue 4 - Dec 2010
Volume 55, Issue 3 - Sep 2010
Volume 55, Issue 2 - Jun 2010
Volume 55, Issue 1 - Mar 2010
Selecting the target year
Introduction of Stay Green Mutant for the Development of Black Seed Coat and Green Cotyledon Soybean Variety
Kang, Sung-Taeg ; Seo, Min-Jung ; Moon, Jung-Kyeong ; Yun, Hong-Tae ; Lee, Young-Ho ; Kim, Si-Ju ; Hwang, Young-Sun ; Lee, Suk-Ki ; Choung, Myoung-Gun ;
Korean Journal of Crop Science, volume 55, issue 3, 2010, Pages 187~194
The soybean stay green mutant genotype (SSG) derived from the nuclear gene, d1d2, and cytoplasmic gene, cytG, inhibit the breakdown of chloroplast in the leaves, pod walls, seed coats, and embryos during maturity. Soybean seed with black seed coat and green cotyledon (SBG) are preferred than black seed coat with yellow cotyledon (SBY) especially for cooking with rice and as source of traditional food in Korea. The researchers evaluated the seed's chlorophyll content of SSG and introduced SSG to the SBG variety breeding program. The seed chlorophyll content of SSG with d1d2 was
and SSG with cytG
. The Korean SBG variety which was derived from SSG with cytG, contains
. The composition of seed chlorophyll differs according to the genetic background of SSG genotype. Inheritance study showed that cotyledon color was segregated 15:1 (yellow:green) at
seed indicating two recessive genes control green cotyledon as revealed by previous study. Only less than 3% soybean lines showed black seed coat with green cotyledon among crosses SBY and SSG (d1d2). Results showed that SSG with d1d2 can be used as a good source for SBG with high chlorophyll content in the seed cotyledon, but due to the complex genetic behavior, breeding resource of SBG with d1d2 should be prepared to improve the breeding efficiency for development SBG variety.
Establishment of Sesame Cultivation Practices as Succeeding Cropping System of Watermelon in the Greenhouse Condition
Shim, Kang-Bo ; Hwang, Jung-Dong ; Pae, Suk-Bok ; Lee, Myoung-Hee ; Ha, Tae-Joung ; Park, Chang-Hwan ; Park, Keum-Yong ; Son, Jeong-Hee ;
Korean Journal of Crop Science, volume 55, issue 3, 2010, Pages 195~199
This experiment was conducted to develop optimum sesame cultivation practices as succeeding cropping system of watermelon in the greenhouse condition. We also compared major components in sesame seed cultivated in the greenhouse and open field condition. The adaptable varieties under the greenhouse condition were white sesame 'Pyoungan' and black sesame 'Jinki' which showed higher yield and disease resistance. We also conducted several experiments to determine optimum sowing date, planting density and pinching time. Grain yields were statistically different according to the several sowing dates. In general, sesame sowing on June 30th showed higher grain yields than July 10th, July 20th and July 30th in the greenhouse. We also found out sesame cultivation practice with the row spacing of 40 cm and interplant spacing of 30 cm (a few branch type) or 40 cm (many branch type) showed higher yield than other treatments. Optimum pinching time was 25 days after first flowering in main stem when thousand seed weight and grain yield were highest. In the comparison of major components of sesame at the different cultivation conditions, sesame seeds cultivated in the greenhouse contained 4% much more oil content than open field condition. The lignan compounds, sesamin and sesamolin were also higher by 6% in the greenhouse than open field condition. It was concluded that sesame cultivation practices as succeeding cropping system of watermelon in the greenhouse condition guaranteed higher grain yield with less labor input which is now emerging alternative farming practice system in present aging rural society and will also give sesame cultivation farmers to increase net income in Korea.
Comparison of Chemicals in Lagerstroemia speciosa (L.) Pers. at Growing Stage Levels by GC-MS
Choi, Joo-Soo ; Ku, Pyung-Tae ; Cho, Kyung-Soon ; Huh, Man-Kyu ;
Korean Journal of Crop Science, volume 55, issue 3, 2010, Pages 200~206
Banaba, Lagerstroemia speciosa (L.) Pers. (Lythraceae) is a tree that grows in the tropic islands of the Pacific. This plants are used for medical purposes in the world. The components of L. speciosa were analyzed for the contents according to growing stages at leaves. The distributions of the corosolic acid (
-dihydroxyurs-12-en-28-oic acid), phytol, campestrol, and vitamin E were rich among samples in this study. These were contained much fatty acids. The mean content of palmitic acid was from 2.4% across all growing stages, varying from 2.15% for young leaves with the lowest content and 2.86% for fallen leaves with the highest content. Oleic acid, linoleic acid, and linolenic acid were contained nearly mean 2.0% in all leaves of banaba. Our results have shown that the phytochemical profile of young L. speciosa leaves differs quite radically from that of old L. speciosa leaves. In addition, these subdividing results according to plant growth should allow future researches to conduct targeted experimental studies and use of particular medical components of interest, examining chemical variation on the inter-developmental levels.
Changes of Heading Response and Leaf Production of Winter Cereals as Spring Living Mulch According to Cultivar and Sowing Date
Seo, Jong-Ho ; Lee, Jae-Eun ; Kwon, Young-Up ; Jung, Gun-Ho ; Kim, Wook-Han ;
Korean Journal of Crop Science, volume 55, issue 3, 2010, Pages 207~213
Changes of heading response and leaf production of winter cereals according to cultivar and sowing date in spring, were investigated in Suwon Korea during three years from 2007 to 2009 to obtain information on use as spring living mulch of winter cereals for weed suppression without herbicide in environment-friendly crop production. Rye showed variation among cultivar in heading response according to sowing date, which means that cultivar selection for living mulch is important in rye. Cultivar Prima and Wintergreen had not headed in sowing during March with low soil temperature in contrast to cultivar Koolgrazer and Gokwoo which had headed somewhat even until sowing in early May with relative high soil temperature. Barley and wheat showed distinct characteristics in heading response between sowing before and after early April compared to rye. Leaf production for soil covering was higher in barley than wheat, and cultivar Mirak than Ol within barley in 2007, respectively. Leaf production were not different much among rye cultivar in sowing during early or mid April, but it was different in sowing after mid April indicating that winter cereal cultivar with high leaf production could be selected in late sowing. It is thought that rye cultivar Duru was the most proper cultivar for spring living mulch in the point of high leaf production in addition to low heading in sowing after March.
Global Warming on Double Cropping in North Korea
Kang, Yang-Soon ; Lee, Jong-Hoon ; Lee, Byong-Lyol ;
Korean Journal of Crop Science, volume 55, issue 3, 2010, Pages 214~219
In order to evaluate the benefits of global warming on the double cropping with staple crops in North-Korea, four aspects such as the increasing rate of air temperature, the wintering temperatures for winter crops, the causing temperature of cool injury to rice and the securing of accumulated temperature for the double cropping in the different agricultural climate zones were analyzed by comparing the differences between the past 22 years from 1973 to 1994 and the recent 5 years from 2002 to 2006. The warming rate in recent daily mean air temperature of
in North Korea was higher by
than that in the past with large regional variations ranging from
in Samjiyeon of northern inland semi-alpine zone to
in Jangjeon of east central coastal zone. With the accumulated temperatures of more than
, it was possible to apply the double cropping patterns with winter wheat and for cropping patterns with spring potato, respectively, to the whole region except for the northern inland semi-alpine zone. However, the wintering temperature higher than
of average daily minimum air temperature of January, cropping patterns were impossible to northern inland semi-alpine zone and most regions of the northern mountainous zone. The days passed by below
in daily mean air temperature, causing the spikelet sterility at meiotic stage of rice in July, were a lot recorded from 21 to 29 days in northern inland semi-alpine zone and from 2 to 10 days in east-northern coastal zone, respectively. Therefore, a reasonable utilization of heat / temperature resources would relieve the limiting factors in double cropping for stable production of staple crops in North-Korea.
Effects of Storage Temperature on Physicochemical and Sensory Characteristics of Soybean Sprouts
Jeon, Seung-Ho ; Lee, Se-Hun ; Kim, Young-Ju ; Oh, Se-Yun ; Kim, Kyung-Moon ; Chung, Jong-Il ; Shim, Sang-In ;
Korean Journal of Crop Science, volume 55, issue 3, 2010, Pages 220~225
Soybean sprouts produced at optimal temperature are placed or displayed for several days in market shelf of relatively cool temperature (ca.
). During this period a number of changes occur including changes in color, smell, taste, nutritional quality, etc. In order to investigate the changes of these factors, soybean sprouts packed in plastic film bag (OPP+PE) were stored at the two different temperature (
). Morphological characters, physicochemical changes and enzymes activity related to visible quality (color) of soybean sprouts were examined. The numbers of fine roots were greater and hypocotyls were longer in soybean sprouts stored at
, although there was no significant difference in diameter, fresh weight and dry weight of hypocotyls between the two storage temperatures. Browning of hypocotyl, as an indicator of a typical deterioration in sprout quality, was highly dependent on the activity of polyphenol oxidase (PPO). Considering the low level of soluble protein in hypocotyls, the relatively higher activity of PPO suggested a critical role of PPO in stored soybean sprouts. PPO activity of sprouts stored at
was 2-fold higher than that of sprouts stored at
after 4 days. In sprouts stored at
, the PPO activity was increased from day 0 until 6 days and since then, it was not detected. Crude protein content was increased to 30.9~35.4% based on dry weight with extended storage period. The change in crude protein was greater in sprouts stored at high temperature (
). Total free amino acid content was increased in both temperatures. However, the changing rate of free amino acid was greater in sprouts stored at
Effect of Planting Ratio of Male Sterility (MS) and Restorer Line (RL) on Fatty Acid Content and Composition during Seed Filling Period in
Seed of Brassica napus L.
Ku, Yang-Gyu ; Yang, Sun-Young ; Jung, Yong-Su ; Kim, Hyun-Sung ; Suh, Mi-Chung ; Ahn, Sung-Ju ;
Korean Journal of Crop Science, volume 55, issue 3, 2010, Pages 226~231
The objective of this experiment was determined to investigate the effect of the planting ratio of Male Sterility (MS) to Restorer Line (RL) and harvesting time on fatty acid compositions under
seed production of Brassica napus L. For rapeseed seed production, two experiments were conducted in the open fields. One experiment studied planting ratios of MS to RL (4:2, 10:2, or 10:1) were planted and investigated fatty acid composition at 40, 45, 50, 55, and 60 days after flowering, the other
seeds were analyzed on fatty acid compositions of harvested seeds at five sequential stages. The results showed that fatty acid compositions of developing seeds were influenced by MS:RL planting ratios and
hybrid treatments and contaminated level of fatty acid compositions, erucic acid, were unaffected by planting ratio of MS to RL. Fatty acid compositions such as palmitic acid (C16:0), stearic acid (C18:0) and linoleic acid (C18:2) contents decreased during seed maturation period in
experiments. In contrast, oleic acid (C18:1) content relatively increased up to 55days after flowering. At day 60 after flowering, oleic acid content was unaffected by MS:RL planting ratios and
seeds treatments. Aspects of related gene expression of fatty acid synthesis such as SAD, FAD1 and FAD2 were followed exactly to changes of fatty acid composition during seed maturation. These results suggest that MS ratio may be enlarged and RL may be reduced, indicating this ratio will be useful for rape seed production.
Changes of Growth and Yield of Late-planted Maize Cultivar for Double Cropping with Barley
Seo, Jong-Ho ; Son, Beom-Young ; Lee, Jae-Eun ; Kwon, Young-Up ; Jung, Gun-Ho ; Back, Sung-Beom ; Sung, Jang-Hoon ; Kim, Wook-Han ;
Korean Journal of Crop Science, volume 55, issue 3, 2010, Pages 232~238
Maize double cropping with winter cereals is important for round-year production of forage or grain, and increase of self-sufficiency of upland grain crops such as maize and wheat. Changes of maize growth and yield for forage or grain according to late planting in June for double cropping with winter barely were investigated compared to proper planting in April for three years from 2007 to 2009. Forage and grain yields of maize planted in mid or late June decreased by 20~30% compared to proper planting in April, but total grain yields per year of double cropping increased by 30~40% compared to single cropped maize. Reduction of ear dry matter was less than that of stalk in late planting within maize plant part. Yield reduction by late planting was the least at Kwangpyeongok, which showed the highest grain yield, 850 kg
in even though late planting in June. Meteorological condition during harvesting time of double cropped maize, which in late September (forage) and mid October (grain), were better than that of conventional maize harvesting time which in late August and mid September. It is thought that more researches for double cropped maize for higher grain production is needed in the future.
Growth Property and Seed Quality of Mungbean Cultivars Appropriate for Labor Saving Cultivation
Kim, Dong-Kwan ; Son, Dong-Mo ; Choi, Jin-Kyung ; Chon, Sang-Uk ; Lee, Kyung-Dong ; Rim, Yo-Sup ;
Korean Journal of Crop Science, volume 55, issue 3, 2010, Pages 239~244
The purpose of this study was to identify mungbean (Vigna radiata L.) cultivars with appropriate characteristics for labor saving culture (whole crop feeding and combine harvesting), and to investigate seed quality in the southern South Korea. Cultivar Dahyeon exhibited strong lodging resistance, excellent disease tolerance, and greater pod numbers per plant resulting in higher yield. Cultivar Owool and Keumseong, the two most common mungbean cultivars in Korea, exhibited lower yield than Dahyeon due to weaker disease tolerance or lower pod numbers per plant. Cultivar Samgang demonstrated higher seed starch content, Jangan, Nampyeong, and Keumseong exhibited higher crude protein content, and Sohyeon exhibited higher vitexin and isovitexin contents. However, no statistical differences were found among the cultivars in crude fat content. Unsaturated fatty acid ranged from 51.8 to 57.2%, with saturated fatty acid ranging from 36.2 to 40.3%. We detected five unsaturated fatty acids including linoleic acid (36.1 to 38.6%), linolenic acid (10.3 to 14.7%), and oleic acid (2.7 to 4.6%), and seven saturated fatty acids including palmitic acid (28.7 to 30.9%), stearic acid (2.9 to 4.1%), and arachidic acid (1.5 to 3.7%). There were significant differences between the cultivars in amylogram properties of seeds: the Nampyeong cultivar exhibited a lower gelatinization temperature; Dahyeon was higher in peak viscosity and breakdown; and Sohyeon, Nampyeong, and Dahyeon were lower in setback.
Variation of Seed Characteristic, Oil Content and Fatty Acid Composition in Sunflower Germplasm
Lee, Yun-Ho ; Song, Hang-Lin ; Piao, Xiang-Min ; Park, Kyeong-Ho ; Nam, Sang-Young ; Kim, In-Jae ; Choi, Sung-Yeol ; Jang, Young-Seok ; Kim, Hong-Sig ;
Korean Journal of Crop Science, volume 55, issue 3, 2010, Pages 245~252
The objective of this study was to obtain the basic informations on variability of germplasm and cultivation practice for the production of biodiesel in sunflower. A total of 275 accessions obtained from the National Agrobiodiversity Center (34 landraces from Korea, 219 and 22 introductions from America and other countries, respectively) were screened to evaluate variations of seed characteristics, oil content and fatty acid composition. Seed types were classified into 4 types (broad ovoid, narrow ovoid, rounded and elongated). The broad ovoid type was the highest proportion of 40.4%, while the elongated type was the lowest proportion of 5.0% among accessions. Also, the seed colors were classified into 4 colors (gray, brown, black and white). Gray and brown seed color showed the highest distribution and white seed color showed the lowest among accessions, respectively. Hundred and one liter seed weight ranged 2.9~15.5g and 178~439g with averages of 6.3g and 322.0g, respectively. Oil content ranged from 11.7% to 45.6% with an average of 25.5%. The frequency distribution of oil content showed the highest in range of 22~28% and the lowest in range of over 40%. Three promising accessions with higher oil content than 40.0% were IT031967, IT031970 and IT031965 introduced from America. Palmitic and stearic acid contents, saturated fatty acid, ranged 3.1~7.6% and 1.3~4.1% with averages of 4.7% and 2.2%, respectively, and a total content of saturated fatty acid ranged 5.4~9.4% with an average of 6.9%. Oleic and linoleic acid contents, unsaturated fatty acid, ranged 18.1~75.7% and 18.1~74.1% with averages of 55.2% and 38.0%, respectively. Five accessions, IT031831, IT031669, IT031895, IT031938 and IT031694, showed higher oleic acid content than 70%. A total content of unsaturated fatty acid ranged 89.6~94.8% with an average of 93.0%.
Analysis of Major Traits for Native Ginseng(Panax ginseng C.A. Meyer) Collected from Poonggi Area in Korea Using DNA Marker
Rhim, Soon-Young ; Choi, Hong-Jib ; Ryu, Tae-Seok ; Kwon, Tae-Ryong ; Choi, Jin-Kook ; Sohn, Jae-Keun ;
Korean Journal of Crop Science, volume 55, issue 3, 2010, Pages 253~258
In this study, a total of 25 lines consisting of five native ginseng collections from Poonggi area, five lines from Geumsam area and 15 varieties were analyzed and clustered for the selection of Poonggi native ginseng in Korea using DNA markers. The results indicated that the long cluster distance were observed between the collections of 331002, 331004, 331005, 331007 and 331026 from Poonggi area, and the collections of 332009, 332021, 332046, 332050 and 332066 from Geumsan area because of the sensible differences on the number of leaves per stem, stem color and petiole color. Thus, the collections from Poonggi area with specific characters consisting of one stem per plant, five leaves per stem and broad elliptic leaflet shape were finely classified using nine primers including OPD05, OPD20, OPG17, OPH05 and so on. In this study, the collection of 331007 from Poonggi area was considered as the respective collection with above characters. Thus, the nine primers such as OPD05 and so on, will be used to select the Poonggi ginseng in the future studies.
The Effects of Transplanting Time and Meteorological Change to Variation of Phyllochron of Rice
Ku, Bon-Il ; Choi, Min-Kyu ; Kang, Shin-Ku ; Lee, Kyung-Bo ; Park, Hong-Kyu ; Park, Tae-Seon ; Ko, Jae-Kwon ; Lee, Byun-Woo ;
Korean Journal of Crop Science, volume 55, issue 3, 2010, Pages 259~267
This study was performed at Rice and Winter Cereal Crops Department of NICS during 2007 and 2008 to investigate the characteristics of rice leaf emergence and to obtain basic data which can be used for rice growth simulation model by which we can forecast rice growth stage and heading date accurately under different cultivars, transplanting date, and climatic conditions. To confirm leaf emergence rate according to rice maturing ecotype, we surveyed the leaf emergence rate and heading date of Unkwangbyeo, Hwayoungbyeo and Nampyeongbyeo which are early maturing, medium maturing and medium-late maturing cultivars, respectively, according to seedling raising duration and transplanting time. When seedling duration was 15 days, the growth duration between transplanting time and completion of flag leaf emergence on main culm were 51.5~78.3 days in Unkwangbyeo, 55.3~87.9 days in Hwayoungbyeo and 58.4~98.4 days in Nampyeongbyeo, respectively. When seedling duration was 30 days, they were 50.1~75.5 days in Unkwangbyeo, 52.4~84.7 days in Hwayoungbyeo and 56.4~93.8 days in Nampyeongbyeo, respectively. As transplanting time delayed, the emerged leaf number after transplanting decreased in all rice cultivars. The cumulative temperature between transplanting time to completion of flag leaf elongation on main culm were
in Hwayoungbyeo and
in Nampyeongbyeo, respectively. Leaf emergence rate on main culm were precisely represented by equation, y =
+ a / [1 + exp( - (x -
) / b)]^c, when we used daily mean temperature as variable.
Combined Effects of Container Volume and Fertilizer Level on Plant Growth, Physiological Characteristics, and Nutrient Uptake of Vinca Plant (Catharanthus roseus)
Kang, Jong-Goo ; Chon, Sang-Uk ;
Korean Journal of Crop Science, volume 55, issue 3, 2010, Pages 268~274
The aim of our study was to investigate the interactive effects of container size and nutrient supply on plant growth, chlorophyll synthesis, transpiration,
assimilation, water use efficiency (WUE), and nutrient uptake of vinca plant (Catharanthus roseus). A complete experiment utilizing four concentrations of fertilizer and three volumes of containers was conducted. As the container size was increased, the plant height, leaf area, and dry weight of vinca significantly increased regardless of fertilizer level. The leaf area and dry weight of vinca were highly sensitive to the container size. However, the chlorophyll contents of vinca 20 days after the transplant significantly increased with decreasing container sizes and increasing fertilizer concentrations. Significant differences in transpiration and
assimilation occurred with the use of differentfertilizer solutions, but the highest values for transpiration and
assimilation were in plants grown in the 15 cm-diameter containers. The highest water use efficiency was observed in the plants grown in 10 cm-containers with 4 dS/m of fertilizer, and there were no significant differences in WUE values among container sizes with fertilizer concentrations of 0, 1, or 2 dS/m. No significant difference in nutrient uptake was observed among the fertilizer levels or among the container sizes. However, at a fertilizer concentration of 4 dS/m, the uptake of several nutrients, including N, P, K, Ca, Mg, B and Fe, was higher in small containers than in larger ones.