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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
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Korean Journal of Crop Science
Journal Basic Information
Journal DOI :
The Korean Society of Crop Science
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Volume & Issues
Volume 59, Issue 4 - Dec 2014
Volume 59, Issue 3 - Sep 2014
Volume 59, Issue 2 - Jun 2014
Volume 59, Issue 1 - Mar 2014
Selecting the target year
Genetic Improvement of Maize by Marker-Assisted Breeding
Kim, Jae Yoon ; Moon, Jun-Cheol ; Baek, Seong-Bum ; Kwon, Young-Up ; Song, Kitae ; Lee, Byung-Moo ;
Korean Journal of Crop Science, volume 59, issue 2, 2014, Pages 109~127
DOI : 10.7740/kjcs.2014.59.2.109
Maize is one of the most important food and feed crops in the world including Southeast Asia. In spite of numberous efforts with conventional breeding, the maize productions remain low and the loss of yields by drought and downy mildew are still severe in Asia. Genetic improvement of maize has been performed with molecular marker and genetic engineering. Because maize is one of the most widely studied crop for its own genome and has tremendous diversity and variant, maize is considered as a forefront crop in development and estimation of molecular markers for agricultural useful trait in genetics and breeding. Using QTL (Quantitative Trait Loci) and MAS (Marker Assisted Breeding), molecular breeders are able to accelerate the development of drought tolerance or downy mildew resistance maize genotype. The present paper overviews QTL/MAS approaches towards improvement of maize production against drought and downy mildew. We also discuss here the trends and importance of molecular marker and mapping population in maize breeding.
EMS-induced Mutagenesis for C18 Unsaturated Fatty Acids in Rapeseed (Brassica napus L.)
Lee, Yong-Hwa ; Kim, Kwang-Soo ; Jang, Young-Seok ; Choi, In-Hu ;
Korean Journal of Crop Science, volume 59, issue 2, 2014, Pages 128~133
DOI : 10.7740/kjcs.2014.59.2.128
Rapeseed (Brassica napus L.) oil with high oleic acid content is of great interest for both food and non-food uses. The `Tamla` variety, characterized by oleic acid content of approximately 69%, was treated with 1% ethyl methane sulfonate (EMS) to induce mutations in the fatty acid biosynthesis pathway.
plants were selfed and subsequent generations (
mutants) were analyzed to identify mutants having increased levels of oleic acid.
mutants showed oleic acid content ranging from 13.5% to 76.9% with some mutants (TR-458 and TR-544) having up to 74.7% and 76.9% oleic acid, which was an increase of nearly 5% and 7%, respectively, compared to untreated cv `Tamla`. We selected two
mutants with >75% oleic acid content. One mutant (TR-458-2) had increased oleic acid (75.9%) and decreased linoleic acid (12.5%) and linolenic acid (4.4%) contents. The other (TR-544-1) showed increased oleic acid content (75.7%) and decreased linoleic acid (13.5%) and linolenic acid (3.3%) contents. The accumulation or reduction of oleic acid content in the selected
mutants was also accompanied by a simultaneous decrease or increase in linoleic and linolenic acid contents. The high-oleic lines could be utilized further in breeding programs for improvement of rapeseed oil quality.
Effects of Storage Methods and Periods on Root Hardness and Content of Saponin in Platycodon grandiflorum Radix
Lee, Byung-Jin ; Shin, Young-Yook ; Lee, Shin-Woo ; Chun, Hyun-Sik ; Cho, Young-Son ;
Korean Journal of Crop Science, volume 59, issue 2, 2014, Pages 134~138
DOI : 10.7740/kjcs.2014.59.2.134
The research was conducted to provide basic information for store temperature which were low and room temperature and packing methods which were vacuum, packing and nitrogen of 3 year-old Platycodon grandiflorum. We investigated hardness and content of saponins, 1) platycodin D3, 2) polygalacin D and 3) deapioplatycodin D, in Platycodon grandiflorum and hardness of Platycodon grandiflorum, which were reduced by increasing storage period and decreased with increasing storing temperature, respectively. The packed storing method was better than others storing methods in low temperature. The high root hardness was significantly related with storing temperature and methods. The content of saponins in Platycodon grandiflorum, i.e., platycodin D3 and polygalacin D were reduced during storing period, however, the content of deapioplatycodin D was increased during storing period.
Germination and Growth Response of Spergularia marina Griseb by Salt Concentration
Jeong, Jae-Hyeok ; Kim, Sun ; Lee, Jang-Hee ; Choi, Weon-Young ; Lee, Kyung-Bo ; Cho, Kwang-Min ;
Korean Journal of Crop Science, volume 59, issue 2, 2014, Pages 139~143
DOI : 10.7740/kjcs.2014.59.2.139
This study was conducted to investigate the germination and growth response by Salinities of Spergularia marina Griseb grown in the western coastal region in South Korea. The germination was investigated for 10 days at temperature
in order to examine the germination of Spergularia marina Griseb by NaCl concentration 0.0, 0.3, 0.5, 1.0, 2.0%. The germination of NaCl concentration 0.0~1.0% was 90% over at
treatment, but the germination of NaCl concentration 2.0% was 0% at all temperature treatments. To identify the growth response of Spergularia marina Griseb according to the salinity, Spergularia marina Griseb was cultivated for 8 weeks in Hoagland culture medium and sea water. In nutrient solution culture, growth was best in NaCl 50mM among 0~400 mM concentrations and in 0, 12.5, 25, 50, 100% of sea water, growth was best in 12.5% (dilution ratio with fresh water) treatment. Spergularia marina Griseb`s inorganic component contents according to salinity showed that
content increased, but contents of
decreased. As a result, appropriate condition for Spergularia marina Griseb`s germination is considered to be maintained at
and in less than NaCl 1.0% of salinity. When nutrient solution culture, NaCl 0.3% of treatment level is considered to be the optimum salinity.
Effect of Fertilizer and Organic Matter Level on Marketable Tuber Production in Chinese Yam (Dioscorea opposita)
Shin, Jong-Hee ; Kim, Sang-Kuk ; Kang, Dong-Kyoon ; Park, Sang-Zo ;
Korean Journal of Crop Science, volume 59, issue 2, 2014, Pages 144~150
DOI : 10.7740/kjcs.2014.59.2.144
Yams (Dioscorea spp), which are edible or medicinal tuber crops, are a important crop in South Korea. Yams require a high level of soil fertility. The various cultural practices such as fertilizing and plowing were tested for marketable tuber production in Chinese yam (Dioscorea opposita). Tuber yield was also affected by organic matters in soil. Application higher level of organic matters result in increased each tuber weight and tuber yield per unit area. The nutrient absorption quantity of the plant such as nitrogen, phosphoric acid, calcium and potassium was increased from 100~120 days after planting, which time to begin tuber enlargement. The tuber yield was increased when the fertilization increased in quantity. Total yield and marketable ratio were the highest in 31~32 kg/10a of nitrogen fertilizer. From above result, income become larger with increase of marketable yield and quality improvement at 63% (27 kg/10a) level of conventional N fertilization (43 kg/10a). The tuber yield was not significantly different between with in various application level of potash fertilizer. Tuber size and weight decreased accordingly to decreased fertilizing level, so the rates of small tubers increased greatly at cultivation without chemical fertilizer. In considering the accumulation rates of allantoin in Chinese yam tubers, the apt harvest season was after October. The allantoin quantity of it was not influenced with nitrogen fertilizing. Moreover it was advantageous with decrease of chemical fertilizer and appropriate fertilizing in soil environment protection. Commercial tuber`s number and yield were increased in trenching before planting with trencher compared with rotavating with tractor.
Variation of Lignan Content for Sesame Seed Across Origin and Growing Environments
Kim, Sung-Up ; Oh, Ki-Won ; Lee, Myoung-Hee ; Lee, Byoung-Kyu ; Pae, Suk-Bok ; Hwang, Chung-Dong ; Kim, Myung-Sik ; Baek, In-Youl ; Lee, Jeong-Dong ;
Korean Journal of Crop Science, volume 59, issue 2, 2014, Pages 151~161
DOI : 10.7740/kjcs.2014.59.2.151
Sesame lignan, including sesamin and sesamolin has been reported to have various content according to accessions and environmental factors. The objective of this study were to analyze the lignan variation of 143 sesame accessions from core collection in Korea and to test the effects of growing years and locations on lignan and lipid content of Korea sesame elite lines. The results showed that the core sesame germplasm in Korea has broad variation of lignan content from 2.33 to 12.17 mg/g with an average 8.18 mg/g. Among tested sesame accessions, the IT184615 had the highest lignan content of as 12.17 mg/g. So this accession will be a good genetic resource for developing a high lignan sesame variety. The sesamin and sesamolin content for sesame accessions across origin had significant difference. The average lignan content of accessions collected from Russia (10.0 mg/g) and Nepal (9.08 mg/g) were relatively higher than other countries. The sesamin and sesamolin content for sesame accessions across seed coat color had significant difference. The average lignan content of sesame with white, brown and black seed coat color was 8.61, 7.51, and 5.49 mg/g, respectively. The variation of lignan and lipid content was significantly different across elite lines, locations and growing years. Therefore, it is important to find sesame accessions having high lignan content with environmental stability.
Effects of PE Mulching and Planting Densities on Growth and Yield of Foxtail Millet (Setaria italica Beauvois)
Jeon, Seung-Ho ; Lee, Byung-Jin ; Chun, Hyun-Sik ; Cho, Young-Son ;
Korean Journal of Crop Science, volume 59, issue 2, 2014, Pages 162~166
DOI : 10.7740/kjcs.2014.59.2.162
This study was conducted to evaluate effects of planting densities (
) and PE mulching (polyethylene film mulching, non- mulching) on growth and yield of foxtail millet in drained paddy field for 2 years. In PE plots, culm length, culm diameter and fresh weight were higher than control plot. Additionally, spike length, seed weight per hill and thousand seed weight were also higher in PE plot. The yield of foxtail millet were increased with 104% and 112% at PE plot. Culm diameter was highest at
plot with 8.90 and 8.06 mm, however, culm length was highest at
plot with 130, 142 cm in
, respectively. Plant height was higher by the increase of planting density. As plant density decreased, that spike length and seed weight per hill were increased. Yield of planting density were highest at
yearly, respectively that it were in order of
Study on Monascus Strains and Characteristic for Manufacturing Red Yeast Rice with High Production of Monacolin K
Park, Ji-Young ; Han, Sang-Ik ; Seo, Woo Duck ; Ra, Ji-Eun ; Sim, Eun-Yeong ; Nam, Min-Hee ;
Korean Journal of Crop Science, volume 59, issue 2, 2014, Pages 167~173
DOI : 10.7740/kjcs.2014.59.2.167
Red yeast rice (RYR) is the product of fermented yeast by Monascus strains on rice, and has recently become a popular dietary supplement as a traditional food in Asia. RYR contains monacolin K substances known to inhibit cholesterol synthesis as efficiently as statin drugs. To determine the optimal rice cultivar for manufacturing RYR, 7 rice cultivars (Goami, Goami2, Sangjuchalbyeo, Seolgaeng, Saegyejinmi, Yeonghojinmi and Chilbo) were fermented using two Monascus strains (M. ruber KCTC6122 and KCCM60141 of M. ruber) in this study. The monacolin K content of Sangjuchalbyeo were 47.24 ppm on KCTC6122 cultures and 117.03 ppm on KCCM60141 cultures, respectively. Other cultivars, especially Goami and Goami2, which had less content of monacolin K could not seem to ferment normally because those didn`t show red color. These results imply that Sangjuchalbyeo can be optimal rice cultivar as a commercial RYR which is well fermented rice and has high content of monacolin K.
Effect of Low Radiation During Grain Filling Stage on Rice Yield and Grain Quality
Kim, Ki-Young ; Ko, Jong-Cheol ; Shin, Woon-Cheol ; Park, Hyun-Su ; Baek, Man-Kee ; Nam, Jeong-Kwon ; Kim, Bo-Kyeong ; Lee, Jeom-Ho ;
Korean Journal of Crop Science, volume 59, issue 2, 2014, Pages 174~180
DOI : 10.7740/kjcs.2014.59.2.174
This study was conducted to know the effect of low radiation during grain filling stage of rice on its grain yield, components, physicochemical properties and palatability, compared to the effect of natural light. Ripened grain ratio, 1000 grain weight of brown rice, milled rice yield of Mipum, Hopum, and Sindongjin were reduced as the shading treatments become higher. After harvest, physicochemical properties of rice influencing eating quality were investigated. Protein content of milled rice was increased, but palatability was decreased by shading treatments. Change of milled rice proteins and palatability due to shading treatments were found to be less in Mipum than that in Hopum and Sindongjin. With regard to amylogram properties, shading treatments resulted in a significant decrease in peak trough final breakdown viscosities of rice flour, though it increased pasting temperature and setback viscosity. The degree of the 55% shading effect was more intensive than the 35% shading effect in changes of ripened grain ratio, 1000 grain weight of brown rice, milled rice yield and milled rice protein.
Influences of Polycyclic Aromatic Hydrocarbons on Soybean and Rice Growth
Kim, Young-Ju ; Shim, Doo-Bo ; Song, Sun-Hwa ; Kim, Seok-Hyeon ; Chung, Jong-Il ; Kim, Min-Chul ; Chung, Jeong-Sung ; Kim, Hyung-Gon ; Shim, Sang-In ;
Korean Journal of Crop Science, volume 59, issue 2, 2014, Pages 181~187
DOI : 10.7740/kjcs.2014.59.2.181
Polycyclic aromatic hydrocarbons (PAHs) are a group of ubiquitous hazardous pollutants derived from fossil fuel, various combustion sources and pyrolysis of a wide range of plastics. Because PAHs can be uptake into crop plants, the inhibitory effects on rice and soybean plants were examined in greenhouse and growth chamber experiment. Soil-applied PAHs (phenanthrene of 0, 10, 30, 100 ppm) slightly reduced the plant height and dry weight both in transplanted rice and soybean plant. The inhibitory effect on growth was greater in soybean than rice. Plant height of soybean plants treated by 100 ppm was 58.9 cm and this value was 87.2% of untreated plant. In rice plant, the plant height was less inhibited (96.0% of untreated plant) by 100 ppm at 80 days after treatment (DAT). However, leaf chlorophyll content and chlorophyll fluorescence were less inhibited by PAHs at late growth stage (after heading) although the photosynthesis-related parameters were slightly inhibited from 20 DAT to 70 DAT. In agar medium experiment with infant seedlings, inhibition of seedling length and fresh weight by phenanthrene at 100 ppm were greater as compared to the experiment with adult plant in pot. Seedling length and fresh weight were reduced by 54.2% and 33.3% for rice and 27.9% and 13.2% for soybean, respectively. The results reflected that PAHs were more inhibitory during juvenile stage than adult stage and more inhibitory to rice plant than soybean for juvenile stage.
Comparative Studies on Cotton Seed Germinability with Tetrazolium Viability Test and X-ray Contrast Methods
Na, Young-Wang ; Shim, Sang-In ; Chung, Jung-Sung ; Rho, Il-Rae ; Kim, Seok-Hyeon ;
Korean Journal of Crop Science, volume 59, issue 2, 2014, Pages 188~193
DOI : 10.7740/kjcs.2014.59.2.188
Seed viability testing provides valuable information for assessing seed lot germinability. However, most testing methods require destruction of seed prior to test. Because the dissected seeds for viability test cannot be used further evaluation, the nondestructively X-ray photography technique that can be applied for the evaluation of seed quality has been developed. In order to know the validity and accuracy of X-ray photography technique in seed evaluation test that conducted to remove the abnormal seed from a seed lot, we have compared the results from tetrazolium viability test, germination test and X-ray contrast method in cotton. Metallic salts treatment increased the efficiency of X-ray photographic method by enhancing the penetration of X-ray in abnormal or damaged seeds rather than normal seeds that have strong and well-organized tissues in seed. Cotton seeds presoaked for 16 hr in distilled water followed by soaking into metallic salt solution (5% NaI in water) for 60 min were easily classified seeds into dead seed and viable seed based on the radiography images obtained by X-ray radiation. We concluded that soft X-ray photography was reliable to find out the various defective characters due to heat and mechanical damage of seeds.
Effects of Varieties, Growth Duration, and Topping for Occurrence of Skin Ridge on the Tuberous Root in Sweet Potato (Ipomoea batatas Lam.)
Choi, Kyu-Hwan ; Yu, Young-Jin ; Kim, Hyo-Jin ; Kang, Chan-Ho ; Jeong, Jong-Sung ; Song, Young-Ju ; Kim, Chung-Kon ; Lee, Seung-Yeop ;
Korean Journal of Crop Science, volume 59, issue 2, 2014, Pages 194~200
DOI : 10.7740/kjcs.2014.59.2.194
Skin ridge (SR) is a irregular line shape that stand out in epidermal layer on sweet potato (Ipomoea batatas Lam.). SR reduced marketable value of storage root in sweet potato. It would be occurred by accumulation of starch in epidermal layer. SR rate was more highly increased in early planting. SR rate was under 3% in 7 varieties `Geonpoongmi`, `Yeonhwangmi`, `Geonmi` etc and the rate of two varieties `Healthymi`, `Borami` were up to 30%. SR rate was positively correlated with vine weight. SR rate was the highest in 120 days after planting. As leaf area index was reduced to 3, 4, 5 and 6 (non-topping) by topping, it was hard to fine SR occurrence in topping treated sweet potato. Topping treatment, however, caused decrease in yield overall. Therefore, topping treatment for decreasing of SR was not recommended in agricultural practice of sweet potato.
Growth Characteristics of Sprouts and Changes of Antioxidant Activities in Common Bean (Phaseolus vulgaris L.) with Cultivated Temperature
Kim, Hyun-Young ; Koo, Sung-Cheol ; Kang, Beom-Kyu ; Lee, Yeong-Hoon ; Kim, Hyun-Tae ; Yun, Hong-Tae ; Baek, In-Youl ; Jeong, Heon-Sang ; Choi, Man-Soo ;
Korean Journal of Crop Science, volume 59, issue 2, 2014, Pages 201~207
DOI : 10.7740/kjcs.2014.59.2.201
The changes of growth characteristics and antioxidant activity for selection of optimum germinated temperature on common bean (Phaseolus vulgaris L.). Common beans (IT100888, IT102849, and IT231267) were cultivated at
during 5 days of germination. The range of whole length, hypocotyls length, thickness, abnormal germination and yield rate of sprouts was 7.27~27.62 cm, 3.10~18.86 cm, 1.80~2.27 mm, 5.54~18.34% and 205.95~ 618.71%, respectively. Antioxidant activities of common beans with germination temperature investigated. Common beans (IT100888, IT102849, and IT231267) germinated at
during 5 days, and then extracted with 80% ethanol, and analyzed for total polyphenol content, DPPH and ABTS radical scavenging activity. Total polyphenol content increased from 474 mg GA eq/100 g sample for IT231267 to 1364 mg GA eq/g sample for
of germination. DPPH radical scavenging activity of IT102849 increased from 189mg Trolox eq./100 g sample (
) to 1073mg Trolox eq./100 g sample (
) also ABTS radical scavenging activity of IT234267 increased from 479 mg Trolox eq./100 g sample (
) to 1134 mg AA eq/100 g (
). These results suggest that germination temperature for increasing antioxidant activities may be