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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 57, Issue 4 - Dec 2012
Volume 57, Issue 3 - Sep 2012
Volume 57, Issue 2 - Jun 2012
Volume 57, Issue 1 - Mar 2012
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Studies on the Bio-degradability and Characteristics of Mulching Films Containing Rice By-products Applied to Upland Crops
Han, Sang-Ik ; Kang, Hang-Won ; Jang, Ki-Chang ; Seo, Woo-Duck ; Oh, Seong-Hwan ; Ra, Ji-Eun ; Lee, Hyeong-Un ; Chung, Mi-Nam ; Choi, Kyung-Jin ;
Korean Journal of Crop Science, volume 57, issue 2, 2012, Pages 99~105
DOI : 10.7740/kjcs.2012.57.2.099
The main challenges for the development of agricultural bio-degradable mulching film concern the degradation during the lifetime of cultivated crops. A set of rice by-product (rice-hull and rice-bran) based bio-degradable mulching films was developed and tested, following the measurement of standard bio-degradability rate and adaptability in a large scale field experiment. The standard bio-degradability of bio-film passed the KS (Korea standard) regulation. The result of mechanical analysis of bio-degradable mulching film presented a higher mechanical strength and elongation rate compared with polyethylene film. In addition, bio-film could be degraded into fragments within 4 months under the field condition of several upland crops. Bio-degradable mulching film indicated great potential as a new source of agricultural bio-degradable material.
Effect of Elevated CO
Concentration and Temperature on the Growth and Ecophysiological Responses of Ginseng (Panax ginseng C. A. Meyer)
Lee, Kyoung-Mi ; Kim, Hae-Ran ; Lim, Hoon ; You, Young-Han ;
Korean Journal of Crop Science, volume 57, issue 2, 2012, Pages 106~112
DOI : 10.7740/kjcs.2012.57.2.106
In order to understand the growth and ecophy -siological response of ginseng to global warming condition, we cultivated one and two year ginseng seedlings in control (ambient
+ ambient temperature) and global warming treatment (elevated
+ elevated temperature) from March 2010 to July 2011. Shoot appearance and initiation of flowering were advanced by 3-4 days in global warming treatment than in control. However, timing of fruit setting and seed ripeness was similar in both control and global warming treatment. Shoot length was longer in global warming treatment than in control, and also the number of leaves was much in global warming treatment. Fresh root weight was not different between control and global warming treatment. Photosynthetic rate was higher in global warming treatment than at control. Photosynthetic rate and transpiration rate were higher in two year seedlings than in one year seedlings at control, but was not different between seedling age of ginseng in global warming treatment. Water use efficiency was higher in one year seedlings than two year seedlings at control and global warming treatment. These results demonstrated that Korean ginseng more or less positively responds to global warming situation.
Tolerance Expression of Maize Genotypes to Exserohilum turcicum in North and South Korea
Kim, Soon-Kwon ; Kim, Hyoung-Wook ; Lee, Joon-Soo ; Huh, Chang-Suk ; Kim, Sun-Hwack ; Lee, Kwang-Soo ; Han, Hyoung-Jai ;
Korean Journal of Crop Science, volume 57, issue 2, 2012, Pages 113~126
DOI : 10.7740/kjcs.2012.57.2.113
Northern corn leaf blight caused by Exserohilum turcicum Pass is considered the most important disease infecting corn (Zea mays L.) in the Peoples' Republic of Korea (North Korea). It contributes to the food shortage in North Korea. The objectives of the current research were to study resistance expression and responses of corn crosses made between ten hybrids from North Korea and inbreeding lines (
stage) from the Republic of Korea (South Korea). The experiments were conducted in six trials with a total of 184 crosses including two commercial hybrids in each trial. The trials were conducted at two locations in North Korea (Mirim and Eunsan) and one location in South Korea (Gunwi) under natural infestation of E. turcicum. Host plant responses were rated on a scale of 1 (highly tolerant) to 9 (highly susceptible). A total of 111 crosses (62.4%) showed significant tolerant or susceptible response variations among three locations; 42 crosses (22.8%) at two locations and 69 crosses (39.0%) at one location, respectively. At least 8 crosses of high level of tolerance and 12 crosses of high level of susceptibility showed significantly different biotic responses (P = 0.05). The results of the current study and historical reviews of E. turcicum epidemics in both North and South Korea suggest that breeding of tolerance with quantitatively inherited genes should be carried out for a sustainable corn production in North Korea.
Expression of Pigments in Black Rice during Kernel Development
Lee, Jeom-Sig ; Jang, Jae-Ki ; Chun, A-Reum ; Choung, Myoung-Gun ; Kim, Hye-Won ; Oh, Sea-Kwan ; Lee, Jeong-Heui ; Yoon, Mi-Ra ; Kim, Dae-Jung ; Song, You-Chun ;
Korean Journal of Crop Science, volume 57, issue 2, 2012, Pages 127~131
DOI : 10.7740/kjcs.2012.57.2.127
In this study we examined the changes in expression of pigments in black rice during kernel development, which were sampled at 2~3-day intervals to the 40th day after flowering. The first expression of pigment on kernels was observed on the seed coat about 5 days after flowering. At that times, the ratio of pigment expression was 0.08% of total area. The order in expression of pigments in black rice during kernel development was top first, followed by bottom, dorsal side, then ventral side. Maximum percentage of the total colored area in kernel was about 25 days after flowering. After that, the color has changed to dark purple from pale purple during kernel development after flowering. After harvesting, the non-uniform color kernels were observed. As a result, the ventral side in a kernel was a position of the non-uniform color such as a mixture of pale purple and dark purple. Also, we could be concluded that patten of pigment expression was similar in kernel development.
Comparison of Growth Characteristics and Chemical Composition of Kenaf (Hibiscus cannabinus L.) Varieties as a Potential Forage Crop
Lee, Ji-Yeon ; Velusamy, Vijayanand ; Koo, Ja-Yong ; Ha, Bo-Keun ; Kim, Dong-Sub ; Kim, Jin-Baek ; Kim, Sang-Hoon ; Kang, Si-Yong ;
Korean Journal of Crop Science, volume 57, issue 2, 2012, Pages 132~136
DOI : 10.7740/kjcs.2012.57.2.132
Kenaf (Hibiscus cannabinus) is an annual herbaceous plant of the family Malvacease that has been planted in tropical Africa and Asia region for more than 4000 years and use as source of fiber, energy and feed stock. In this study, the physiological characters and chemical compositions of kenaf mutant variety "Jangdae" developed using gamma irradiation at the Korea Atomic Energy Research Institute (KAERI) were compared with three genetic resources (Auxu, C12, and C14-DRS). Jangdae showed the highest productivity growth rates in fresh yield, dry weight (DW) yield (leaf and stem), node number, and stem thickness. Especially, leaf DW yield of Jangdae was 1.6-3.1 times higher than that of three genetic resources. Also, stem DW yield of Jangdae was 1.6-2.1 times higher than that of three genetic resources. In the analysis of chemical composition, Jangdae showed 16.9% of crude protein content that was 0.86-0.94 times lower than three cultivars. However, Jangdae showed the highest neutral detergent fiber (NDF) contents in leaf (32.5%) and stem (75.2%). Also, acid detergent fiber (ADF) contents of stem and leaf in Jangdae were 64.4% and 33.9%, respectively. Total polyphenol and total flavonoid contents were 22.1 mg/g and 7.4 mg/g in Jangdae. Based on these results, Jangdae would have the potential to become a successful forage crop.
Change of Yield and Greenness of "Nogwonchalbyeo" under Different Date of Transplanting and Harvesting
Lee, Ki-Kwon ; Cho, Seung-Hyun ; Lee, Deok-Ryeol ; Song, Young-Eun ; Song, Young-Ju ; Lee, Jae-Hung ; Choi, In-Young ;
Korean Journal of Crop Science, volume 57, issue 2, 2012, Pages 137~143
DOI : 10.7740/kjcs.2012.57.2.137
This study was conducted to investigate the yield and greenness of "Nogwonchalbyeo" on the basis of different date of transplanting and harvesting. Delay in heading was observed in the plants transplanted later but no effect on heading was observed due to different levels of nitrogen fertilizer. Percentage of green color in dehusked rice was higher in the grains of rice transplanted on 10th June. An increasing trend was observed in the yield with the delay in the date of transplanting, maximum yield was observed in the rice planted on 10th June but a decrease in yield was recorded if transplanted after 15th June. Similarly, yield also increase as the days for harvesting increased until 37 days after heading but beyond 37 days decreasing trend was observed in yield. Based on the above findings it can be suggested that 4~6 June and 9kg/10a are the optimum dates of transplanting and amount of nitrogen while 3 5~37 days after heading is the best time for harvesting of "Nogwonchalbyeo".
γ-Aminobutyric Acid Metabolism in Plant under Environment Stressses
Ham, Tae-Ho ; Chu, Sang-Ho ; Han, Sang-Jun ; Ryu, Su-Noh ;
Korean Journal of Crop Science, volume 57, issue 2, 2012, Pages 144~150
DOI : 10.7740/kjcs.2012.57.2.144
-Aminobutyric acid (GABA) is a non-protein amino acid that is widely distributed in plant and animal kingdom. GABA is found in tissues of the central nervous system (CNS) in animals. GABA functions as a the major inhibitory neurotransmitter in the CNS by acting through the GABA receptors. Clinical studies have revealed the relationship between an increased intake of GABA or analogues with several health benefits, including lowering of blood pressure in mildly hypertensive animals and humans. Furthermore, GABA would also has an inhibitory effect on cancer cell proliferation, stimulates cancer cell apoptosis and plays a role in alcohol-associated diseases and schizophrenia. In plants, interest in the GABA emerged mainly from experimental observations that GABA is largely and rapidly produced in large amounts in response to biotic and abiotic stresses. In this study, we speculated the properties and metabolism of GABA in plant and functions in relation to the responses to environmental stresses.
Comparisons of Growth, Heading and Grain Filling Characteristics between Wet-hill-seeding and Transplanting in Rice
Shon, Ji-Young ; Lee, Chung-Kuen ; Kim, Jun-Hwan ; Yoon, Young-Hwan ; Yang, Won-Ha ; Choi, Kyung-Jin ; Choi, Min-Gyu ; Park, Hong-Kyu ; Ko, Jong-Cheol ; Kim, Yeon-Gyu ; Kim, Chung-Kon ; Yang, Woon-Ho ;
Korean Journal of Crop Science, volume 57, issue 2, 2012, Pages 151~159
DOI : 10.7740/kjcs.2012.57.2.151
Direct seeding of rice is a time- and laborsaving method, compared to machine transplanting. However, the area planted to direct-seeded rice is decreasing because of instability of seedling establishment, lodging, occurrence of weedy rice, and deterioration of grain quality. A newly developed wet-hill-seeding of rice, a type of direct seeding method, has shown features of growth similar to machine transplanted rice. This study was carried out to compare tillering pattern, heading characteristics and grain filling traits between transplanting and wet-hill-seeding in rice. Tillering of wet-hill-seeded rice was more vigorous than that of transplanted rice showing maximum tiller number 30~100% higher than transplanted rice. Wet-hill seeded rice showed later heading and shorter heading duration than transplanted rice. To find out the relationship between heading characteristics and grain filling traits, every panicle was tagged for flowering date, and the panicles on each heading date were inspected for grain filling traits. Wet-hill seeded rice and transplanted rice exhibited no significant difference in culm length, panicle length, the percentage of grain filling and perfect brown rice on each heading date during total heading period. Therefore, we conclude that wet-hill-seeding method is not inferior to machine transplanting in terms of seedling establishment, growth, grain filling and head rice yield.
Differential Sensitivity of Rice Cultivars to HPPD-Inhibiting Herbicides and their Influences on Rice Yield
Kim, Sang-Yeol ; Oh, Seong-Hwan ; Lee, Ji-Yoon ; Yeo, Un-Sang ; Lee, Jong-Hee ; Cho, Jun-Hyeon ; Song, You-Chun ; Oh, Myung-Kyu ; Han, Sang-Ik ; Seo, Woo-Duck ; Jang, Ki-Chang ; Na, Ji-Eun ; Park, Sung-Tae ; Nam, Min-Hee ;
Korean Journal of Crop Science, volume 57, issue 2, 2012, Pages 160~165
DOI : 10.7740/kjcs.2012.57.2.160
A field study was conducted at Miryang in 2011 to evaluate differential sensitivity of six rice cultivars, three Indica
Japonica rice (long grain, cv. Hanareumbyeo, Hanareum2, Dasanbyeo) and three Japonica rice (short grain, Nampyung, Ilpumbyeo and Junamjosaeng) cultivars, to benzobicyclon, mesotrione+pretilachlor (MP) and butachlor (control) in transplanting rice and their treatment influences on rice yield. All Indica
Japonica rice cultivars exhibited susceptible to both benzobicyclon and MP as reflected by higher visual injury and carotenoid biosynthesis inhibition when compared with Japonica rice cutlivars. The percentage of foliar chlorosis of Indica
Japonica rice was only 0.9~4.7% for benzobicyclon at 13 days after treatment (DAT) and 30.3~64.4% for MP at 5DAT but it increased rapidly to 88.4~91.2% at 12~20DAT. However, most of the Japonica cultivars are tolerant to bezobicyclon and MP. There was no visible leaf chlorosis but carotenoid biosynthesis was slightly inhibited. Based on relative carotenoid content reduction of benzobicyclon and MP to butachlor, the Indica
Japonica rice showed 4.6~15.6 fold higher compared with the Japonica rice. The heading date of the injured rice plant was delayed by 3 days and panicle number per square meter and ripened grain ratio were reduced as compared with the control treatment of butachlor. Rice yield of the Indica
Japonica rice cultivars treated with benzobicyclon and MP was reduced by 7~10%, 3~5%. respectively. The result indicates that rice cultivars vary in tolerance to HPPD-Inhibiting herbicides and Indica
Japonica rices were more susceptible than the Japonica rices to MP and benzobicyclon. Rice yield of the Indica
Japonica rices was also significantly reduced by the those herbicide treatments.
Study of Seedling Type for Transplanting Culture in Rice Paddy Field at the Newly Reclaimed Land
Choi, Weon-Young ; Kim, Sun ; Lee, Jang-Hee ; Kim, Si-Ju ; Choi, Min-Kyu ; Ko, Jong-Cheol ; Lee, Kyu-Seong ; Lee, Kyeong-Bo ;
Korean Journal of Crop Science, volume 57, issue 2, 2012, Pages 166~170
DOI : 10.7740/kjcs.2012.57.2.166
This research was carried out to choose the suitable seedling type to transplanting in order to stabilize rice yield. The brief of this research to transplant the seedling divided into 10-day seedling, 20-day seedling, 30-day seedling, 33-day pot seedling in the field of Saemangeum Gyehwa, newly reclaimed land were following; Average salt content in 2 years was reduced from 0.16% to 0.04% after transplanting. Heading date of seedling type was Aug. 14 at 33-day pot seedling compared to 2 days at 30-day seedling, 3 days at 20-day seedling, 5 days late at 10-day seedling. Lodging index was highest at 30-day seedling, and also, field lodging was 50%. Ripening ratio and 1,000 grain weight were similar and panicle number was higher 20-day seedling > 10-day seedling > 33-day pot seedling > 30-day seedling. Rice yield was higher 10-day seedling = 20-day seedling > 33-day pot seedling > 30-day seedling. Head rice ratio was higher in 20-day seedling > 30-day seedling = 10-day seedling > 33-day pot seedling. Amylose content and protein content was not significantly different between seedling types. With this results, the suitable seedling types in newly reclaimed land are 10-day and 20-day seedling.
Characterization of Grain Amino Acid Composition and Proteome Profile of a High-lysine Barley Mutant Line M98
Kim, Dea-Wook ; Kim, Hong-Sik ; Park, Hyoung-Ho ; Hwang, Jong-Jin ; Kim, Sun-Lim ; Lee, Jae-Eun ; Jung, Gun-Ho ; Hwang, Tae-Young ; Kim, Jung-Tae ; Kim, Si-Ju ; Rakwal, Randeep ; Kwon, Young-Up ;
Korean Journal of Crop Science, volume 57, issue 2, 2012, Pages 171~181
DOI : 10.7740/kjcs.2012.57.2.171
Lysine is the first limiting essential amino acid in cereals for humans and monogastric animals, although its content is generally low. A chemically induced high-lysine barley mutant, M98, has an agronomically undesirable shrunken endosperm trait. In order to obtain detailed insight into the atypical traits of M98 grains, we characterized amino acid composition and protein profiles of M98 and its parent cultivar Chalssalbori. Among a total of 16 amino acids, the percentage of each of the 7 amino acids, including lysine, was 1.2~1.8 times higher in M98, comparing to Chalssalbori. The percentage of proline and its precursor, glutamic acid, in M98 was about the half of that of the amino acids in Chalssalbori, but arginine synthesized from glutamic acid was 1.8 times higher in M98, compared that in the parent cultivar. Theses results indicated that the mutation in M98 grains might alter the proportion of amino acids linked to each other in a biosynthetic pathway. A comparison of grain proteome profiles between Chalssalbori and M98 revealed 70 differentially expressed protein spots, where 45 protein spots were up-regulated and 25 protein spots down-regulated in M98 compared to those in Chalssalbori. Of these changed protein spots, 53 were identified using nano-electrospray ionization liquid chromatography mass spectrometry. Most of these identified proteins were involved in various biological processes. In particular, 28 protein spots such as
-amylase, serpins and B3-hordein were identified as proteins associated with the atypical traits of M98. It was thought that a genetic study on the unique protein profile of M98 would be needed to develop an agronomically feasible barley cultivar with high-lysine trait.
Effects of Organic-Matter Application on Weed Occurrence and Growth, Yield of Rice Plants
Ahn, Jeong-Koo ; Lee, Yun-Sang ; Lee, Sang-Young ; Lee, Chul-Won ; Woo, Sun-Hee ;
Korean Journal of Crop Science, volume 57, issue 2, 2012, Pages 182~187
DOI : 10.7740/kjcs.2012.57.2.182
Objective of this research was to evaluate the effects of different organic matter on growth and yield in rice plants and suppression of weed occurrence in paddy soil. The treatments consisted of rice bran, expeller cake, or combination of rye green manure and rice bran without any agrochemical or fertilizer. At 50 days after transplanting (DAT), plant height of rice between conventional practice and expeller cake treatments were similar, while rice bran treatment was inhibited growth of rice during growing period. Also, heading date of rice among the all treatments was not significantly different. Rice yield in expeller cake or rye green manure and rice bran treatments was attained to 91% and 98% of the conventional practice, respectively, while the value in rice bran treatments was just 82%. On the other hand, at 40 DAT of rice plants, occurred major weed species in organic matter treatments were four species, while those in conventional practice were two species. Additionally, the dry weight of weeds in rice bran treatment was significantly inhibited compared to it of expeller cake or combination of rye green manure and rice bran treatments, while the value in rice bran treatment was higher than the conventional practice.
Chemical Composition of Seed from Inbred Lines and Hybrids of Maize Recently Developed in Korea
Son, Beom-Young ; Kim, Jung-Tae ; Lee, Jin-Seok ; Baek, Seong-Bum ; Kim, Sun-Lim ; Ku, Ja-Hwan ; Hwang, Jong-Jin ; Cha, Sun-Mi ; Kwon, Young-Up ;
Korean Journal of Crop Science, volume 57, issue 2, 2012, Pages 188~194
DOI : 10.7740/kjcs.2012.57.2.188
This study was carried out to evaluate the quality properties, fatty acid composition and amino acid composition of major Korean inbred lines and hybrids of maize for corn breeding. Protein content of
seeds was 9.0%, which was slightly lower than those of inbred lines, 11.4%, and
seeds, 10.9%. in hybrid maizes. Lipid content of
seeds of hybrid maizes was 4.2%, slightly higher than those of inbred lines, 3.3%, and
seeds, 3.6%. However, there was no significant difference in ash content. The amount of linoleic acid in inbred lines,
seeds of hybrid maizes was highest among all fatty acids and followed by oleic acid, palmitic acid, stearic acid and linolenic acid. The composition of saturated fatty acid of
seeds was 17.6%, similar to
seeds but it was lower than that of inbred lines. The composition of unsaturated fatty acid of
seeds was 82.4%, similar to
seeds but was higher than inbred lines. The content of leucine of
seeds was lower than inbred lines and
seeds. The content of valine, serine, threonine, cysteine, aspartic acid, lysine, arginine, histidine of
seeds was higher than inbred lines and
seeds. MMA (monoamino monocarboxylic acid) in inbred lines,
seeds of hybrid maizes was highest among all amino acids and followed by DMA (diamino monocarboxylic acid) and AAA (aromatic amino acid).
Effects of Seeding Dates on Harvesting Time of Double Cropped Waxy Corn
Jung, Gun-Ho ; Lee, Jae-Eun ; Seo, Jong-Ho ; Kim, Sun-Lim ; Kim, Dea-Wook ; Kim, Jung-Tae ; Hwang, Tae-Young ; Kwon, Young-Up ;
Korean Journal of Crop Science, volume 57, issue 2, 2012, Pages 195~201
DOI : 10.7740/kjcs.2012.57.2.195
It is important to determine the optimum harvesting time that impact decisively on the quality of vegetable waxy corns. In general, it takes 20~25 days from silking to harvest according to ecotype when waxy corn hybrids were sown in April. We identified the optimum harvesting time by the ecotypes and seeding dates for the establishment of corn double cropping system of waxy corn. It takes 23~25 days from silking to harvest regardless of ecotype, when waxy corns were sown at early in April or late in June. It takes 28~31 days when Chalok1, early maturing type, was sown between in July 10, and in July 30. It takes 29~31 days when Ilmichal, medium late maturing type, was sown between in July 10 and in July 20, but 39 days were required when sown at in July 30. The cumulative temperature for harvesting was about
. The minimum cumulative temperature from seeding to harvest was approximately
. These results will be helpful to the farmers for determining the optimum harvest time of vegetable waxy corns.