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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 :
Lee, Sang Chul
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
Current Regional Cultural Situation and Evaluation of Grain Characteristics of Korean Wheat. I. Survey of Production Practices in Korean Wheat Cultivar Growers by Region
Kang, Chon-Sik ; Kim, Kyung-Hoon ; Seo, Yong-Won ; Woo, Sun-Hee ; Heo, Moo-Ryong ; Choo, Byung-Kil ; Hyun, Jong-Nae ; Kim, Kee-Jong ; Park, Chul Soo ;
KOREAN JOURNAL OF CROP SCIENCE, volume 59, issue 1, 2014, Pages 1~15
DOI : 10.7740/kjcs.2014.59.1.001
The cultivation situation of Korean wheat of 175 farmers in nationwide for two years, 2010/2011 and 2011/2012, was analyzed to obtain basic data for extension cultivated area and enhancing the self-sufficiency ratio of Korean wheat. Compared to the mean temperature and precipitation in the normal year, the mean temperature was lower before the heading stage and higher amount of precipitation after the heading stage in 2010/2011 and higher the mean temperature and lower amount of precipitation after the heading stage in 2011/2012. Average cultivation career and area were 7.7years and 2.4~3.3ha, Keumkang cv. was mainly cultivated for two years and Jokyung and Baekjoong cvs. were increased cultivation areas in southern part of Korea, Gyeongsangnam-do, Jeolllanambuk-do and Kwangju metropolitan city, including in 2011/2012. Most farmers (144) sown wheat seeds from late October to the beginning November with broadcasting method and the other famers were sown using the drill method. Average amount for basal fertilizer was 29.7 kg/10a with complex fertilizer mixed for wheat and barley cultivation, which was higher amount compared to recommended rate of fertilizer amount by rural development administration. Top dressing using nitrogen fertilizer was applied from in the late February to the beginning March. Heading date was the beginning May in 2011 and the late April in 2012, which the mean temperature from regeneration stage to tillering stage in 2011 was higher than that of 2012. Most farmers harvested wheat in mid-June and Pre-harvest sprouting and Fusarium head blight were occurred in 2011 due to the high amount precipitation during grain filling period.
Comparison of Growth Characteristics, Antioxidant Activity and Total Phenolic Contents of Amaranthus Species according to the Different Cultivation Regions and Varieties in South Korea
Hong, Su-Young ; Cho, Kwang-Soo ; Jin, Yong-Ik ; Yeon, Young-Ho ; Kim, Su-Jeong ; Nam, Jeong-Hwan ; Jeong, Jin-Cheol ; Kwon, Oh-Keun ; Sohn, Hwang-Bee ;
KOREAN JOURNAL OF CROP SCIENCE, volume 59, issue 1, 2014, Pages 16~21
DOI : 10.7740/kjcs.2014.59.1.016
Yield, growth characteristics, free radical-scavenging capacities, total phenolic contents and free amino acids contents were determined in Amaranthus species grown in Korea. And this study was aimed to investigate the functional properties of Amaranthus in two regions(Gangneung and Daegwallyeong). Yield ranged from 125 to 465 kg
and RRC 1027 was the highest yield. Amaranthus seed size was very small, average seed weight(1,000 seeds) varied 0.42~0.82 g, especially Kerala Red was the most light weight. In DPPH (1,1-diphenyl-2-picryl hydrazyl) radical scavenging activity, there is no significantly different between growing regions but colored Kerala Red was the highest among varieties. The total amount of phenolic compounds varied from 994 to 1,732 mg/kg. Among amino acids of seeds, the contents were in order of glutamic acid(30.5 mg
) > aspartic acid (26.1 mg
) > arginine(24.3 mg
). The present study shows that South Korea is suitable for the cultivation of Amaranthus. Common grains lack glutamic acid, aspartic acid and arginine we need for optimal health, but Amaranthus contains these amino acids. Amaranthus is great potential to develop new crop. But for measurement of antioxidant activity, in addition to DPPH method we are looking the other way.
Pre-Harvest Sprouting Variation of Rice Seeds Located on Each Panicle Position According to Grain Filling Days
Baek, Jung-Sun ; Chung, Nam-Jin ;
KOREAN JOURNAL OF CROP SCIENCE, volume 59, issue 1, 2014, Pages 22~26
DOI : 10.7740/kjcs.2014.59.1.022
This research was implemented to investigate pre-harvest sprouting characteristics in two Korean rice cultivars, Shindongjin (SDJ) and Hopum (HP). The panicles of both varieties were sampled after 15 days after heading (DAH) to 60 DAH at intervals of 5 days. As soon as sampled, the panicles were imbibed in water for 14 days at
to determine the vigor and germination ability of seeds according to location on panicle. To investigate the cause of non-germination of seeds in panicles, tetrazolium test and dormancy breaking were performed. The preharvest sprouting of HP started at 20 DAH while that of SDJ began at 30 DAH. The germination of seeds located in high rank branches within a panicle and the terminal seeds within a branch were earlier and faster and the germination patterns were same in both cultivars. The times at more than 50% of germination in a panicle were 35 DAH (57.0%) in HP and 45 DAH (56.8%) in SDJ. Preharvest sprouting was more than 80% at 50 DAH (82.6% of HP, 92.3% of SDJ) and more than 99% at 60 DAH (99.5%, 99.4%, HP and SDJ). These results indicated that the rate of PHS in a panicle increased with accumulation of the days after heading. The cause of non-germinated seeds at 15-25 DAH in panicle was immature embryo. After 30 DAH, however, when the non-germinated seeds were hulled, they started to germinate due to dormancy breaking, in which the germination percentage was higher in SDJ than HP. In conclusion, the pre-harvest sprouting varied according to days after heading, the seed position on panicle, and the dormancy intensity of varieties.
Effect of Characteristics of Grain and Flour on Color of Noodle Dough Sheet and Simple Test for Fe Content in Korean Wheat Cultivar
Kang, Chon-Sik ; Kim, Kyeong-Hoon ; Choi, Induck ; Sin, Sang-Hyun ; Son, Jae-Han ; Cheong, Young-Keun ; Lee, Choon-Ki ; Park, Kwang-Geun ; Park, Chul Soo ;
KOREAN JOURNAL OF CROP SCIENCE, volume 59, issue 1, 2014, Pages 27~37
DOI : 10.7740/kjcs.2014.59.1.027
This study was carried out to characterize the color of noodle sheet made from Korean wheat cultivars, which were then evaluated on grain and flour properties, in order to enhance the breeding-line selection for noodle wheat. In particular, a rapid method was applied to investigate the effects of iron (Fe) contents on the lightness of noodle sheet for the selection of breeding-lines with high Fe contents. Wheat flour lightness of Korean wheat cultivars had a negative correlation with ash (r
Variation of Bio-active Substance of Major Soybean Cultivars by Different Sowing Time in Southern Korea
Kim, Dong-Kwan ; Park, Heung-Gyu ; Kwon, Oh-Do ; Shin, Hae-Ryong ; Choung, Myoung-Gun ; Yoon, Seong-Tak ; Lee, Kyung-Dong ; Rim, Yo-Sup ;
KOREAN JOURNAL OF CROP SCIENCE, volume 59, issue 1, 2014, Pages 38~46
DOI : 10.7740/kjcs.2014.59.1.038
The purpose of this study was to investigate the effects of sowing time on the bio-active content of major soybean cultivars in a southern region of South Korea. Experiments were carried out in Naju, Jeonnam Province (latitude
54`E) from 2008 to 2010. The cultivars grown in summer included Saeol-kong and Tawon-kong and those grown in autumn included Taekwang-kong, Pungsannamul-kong, and Cheongja3, respectively. Sowing dates were May 15 and 30, June 15 and 30, and July 15 of each year. Daidzein content was increased in all the test cultivars grown from later sowing, and the contents of genistein and total isoflavone were increased in all the test cultivars except for Cheongja3. On the other hand, glycitein content showed no significant change in any of the test cultivars across the 5 sowing dates except for Tawon-kong. Cyanidin-3-glucoside (C3G) content was significantly increased in Tawon-kong and Cheongja3, and delphinidin-3-glucoside (D3G) and total anthocyanin contents were significantly increased in Tawon-kong. However, pelargonidin-3-glucoside (Pg3G) and petunidin-3-glucoside (Pt3G) contents showed no significant difference in plants sown across the 5 dates. Lutein content in Cheongja3 was between 2.7 and
based on sowing date and did not vary significantly, while chlorophyll content increased with later sowing and was significantly higher in the cultivars sown on June 30 and July 15. Crude fat content was higher in Taekwang-kong and Cheongja3 when the cultivars were sown earlier; crude fat did not vary in the other test cultivars based on sowing date. Palmitic acid composition was not affected by sowing date in most of the test cultivars. Stearic acid was increased in Saeol-kong, Tawon-kong, and Cheongja3 with later sowing. Oleic acid and linoleic acid were significantly higher in Saeol-kong at an earlier sowing date. The composition of linolenic acid showed significantly increased dates in most of the test cultivars with later sowing. There were no significant differences in carbohydrate and crude protein content across 5 different sowing dates in most of the test cultivars. However, crude protein content was higher in Saeol-kong when sowing occurred earlier, and was higher in Tawon-kong at later sowing dates.
Varietal Difference of Eating Quality on Different Milling Degree in Japonica Rice
Lee, Jeom-Sig ; Won, Yong-Jae ; Cho, Jun-Hyeon ; Lee, Jong-Hee ; Park, Hyang-Mee ; Lee, Jeong-Heui ; Yoon, Mi-Ra ; Kwak, Jieun ; Chun, Areum ;
KOREAN JOURNAL OF CROP SCIENCE, volume 59, issue 1, 2014, Pages 47~53
DOI : 10.7740/kjcs.2014.59.1.047
Varietal difference of eating quality by milling degree was investigated for total nine rice varieties comprised of three varieties each as excellent, good, and normal according to sensory evaluation results of cooked rice. Nine varieties were analyzed for their physicochemical properties and for the sensory evaluation according to five different degree of milling(5.5~13.5% based on brown rice). Overall score obtained through sensory evaluation was found the best in the milling degree at 9.5% and 11.5%. The overall score by rice variety was categorized into type A that showed high score at milling degree 9.5%, type B at milling degree 11.5%, and similar type C at both milling degrees 9.5% and 11.5%. The best eating quality was observed in Ilmibyeo and Koshihikari having overall eating quality excellent at milling degree 9.5% and in Chucheongbyeo and Dongjinbyeo having overall eating quality good at milling degree 11.5%. While, Palgongbyeo and Nonghobyeo having eating quality normal showed the best eating quality at milling degree 9.5% and 11.5%. Correlation analysis between overall score and physicochemical properties and five sensory evaluation items by three types of rice showed that Mg content and stickiness of type A, protein content and taste of type B, and K content and appearance of type C were highly significant correlation on overall score by panel test. Therefore, Mg contents might have affected on the stickiness of cooked rice in type A, protein contents on the taste in type B, and K contents on the appearance in type C, respectively.
Effect of Salicylic Acid and Abscisic Acid on Drought Stress of Waxy Corn
Seo, Youngho ; Park, Kijin ; Chang, Eunha ; Ryu, Sihwan ; Park, Jongyeol ; Kim, Kyunghi ;
KOREAN JOURNAL OF CROP SCIENCE, volume 59, issue 1, 2014, Pages 54~58
DOI : 10.7740/kjcs.2014.59.1.054
Climate change may result in greater risk of yield reduction of waxy corn due to drought stress and maize is one of the sensitive crops to the soil moisture shortage. While irrigation is the most effective practice to reduce the drought damage, farmers are unable to apply water due to limited water resource and irrigating facilities. The study was conducted to investigate the application effect of salicylic acid and abscisic acid on reducing drought stress of waxy corn (Zea mays L.). Drought stress was imposed by withholding irrigation from 9 days before anthesis to 14 days after anthesis. Salicylic acid or abscisic acid was applied on tasseling date at concentration of 0.5 mM and 0.1 mM, respectively. Drought stress increased anthesis-silking interval (ASI) by 3.0~3.3 days and decreased plant height, ear length, ear diameter, number of rows in ear, and yield by 47~51 cm, 4.6~5.0 cm, 4.4~5.3 mm, 1.5~2.0, and 2.4~2.5 Mg/ha, respectively. Application of salicylic acid and abscisic acid did not significantly reduced the drought injuries of waxy corn. Pretreatment of the plant growth regulators before water deficit stress or divided application at low concentration may be required to obtain the reduction effect on drought stress of waxy corn.
Effect of Ethephon and Diquat Dibromide Treatment for Triticale Seed Production on Paddy Field
Cho, Sang-Kyun ; Park, Hyeong-Ho ; Oh, Young-Jin ; Cho, Kwang-Min ; Jang, Yun-Woo ; Song, Tae-Hwa ; Park, Tae-Il ; Kang, Hyun-Jung ; Roh, Jae-Hwan ; Park, Kwang-Geun ;
KOREAN JOURNAL OF CROP SCIENCE, volume 59, issue 1, 2014, Pages 59~65
DOI : 10.7740/kjcs.2014.59.1.059
As for Ethephon treatment, the heading stage is 2 days later at the concentration of 250 ppm and 500 ppm for the booting stage that when there is no treatment, 4 days later at the concentration of 1000 or more ppm but no difference for the blossoming and ripening stage. The culm length get shorter as the concentration of Ethephon is higher and the rate of culm length damaged is 37% for 1500 ppm of booting stage, which is the most effective processing, and the inferior culm length damage rate is bigger than the superior culm length damage rate. There is no difference between the number of glumous flower, culm and litter weight and the non-processing and as for the thousand grain weight, it is slightly bigger than when there is not any processing. The rate of germination is indifferent, the number of seeds get numerous regardless of the concentration of treatment and the number augments by 5% maximum for the booting stage. The number of days it takes from treatment of desiccant to the moisture content for harvesting time is respectively 15 days for seeds of 30 day-treatment, 10 days for seeds of 35 days-treatment and 5 days for seeds of 40 to 45 day-treatment. As for the harvest time after treatment of desiccant, the treatment at
after the earing is 8 days earlier than the culture by conventional methods, 8 days earlier for the treatment at
day. When the desiccant treatment is implemented, the thousand grain weight is heavier as the number of days of treatment gets later. The rate of germination gets higher as the number of days of treatment after earing gets later but there is no statistically significant difference 35 days after the earing. Yields are 37% compared to the culture by conventional methods for the treatment of 30 days after the earing, 70% compared to the culture by conventional methods for the treatment of 35 days after the earing, and 92% compared to the culture by conventional methods for the treatment of 40 days after the earing. The treatment before the physiological maturity impacts greatly upon the quality of seeds.
Effect of Colored Barley Flours on Quality Characteristics of Fermented Yogurt by Lactobacillus spp.
Lee, Nayoung ; Lee, Mi-Ja ;
KOREAN JOURNAL OF CROP SCIENCE, volume 59, issue 1, 2014, Pages 66~72
DOI : 10.7740/kjcs.2014.59.1.066
Quality characteristics of yogurt with added colored barely flour was investigated during fermentation by lactic acid bacteria. Chemical properties such as moisture, crude protein, starch, ash and
-glucan contents was measured. pH, acidity, brix, Hunter color value and growth of lactic acid bacteria in yogurt was investigated during fermentation by L. acidophilus, L. bulgaricus, and S. thermophilus mixed culture. Crude protein contents of Daeanchal and Boseokchal was 16.16 and 12.17%, respectively. Starch contents of daeanchal were shown lower score. The pH of yogurt by addition of barley flour (Daeanchal) addition 0 and 20% were 6.66 and 6.40, respectively. The pH of yogurt supplemented with barley flour tended to be lower than before control which was not added barely flours and oligosaccharide in yogurt. Titratable acidity of yogurt added barley flour was higher compared with that of control. Brix of yogurt was decreased during fermentation by lactic acid bacteria. Lightness of yogurt added barley flour (Daeanchal) addition 0 and 20% were 83.25 and 69.83, respectively. The original microbial population of the yogurt during 0, 5, 8, and 15 hr fermentation were 7.48, 7.79, 8.15, and 8.71 Log CFU/g, respectively. Moreover, the addition of colored barley flour was to promote the proliferation of lactic acid bacteria in yogurt. In our research, addition of colored barley flours added into the yogurt may also have contributed to growth of lactic acid bacteria.
Changes in Ear and Kernel Characteristics of Waxy Corn during Grain Filling Stage by Double Cropping
Kim, Mi-Jung ; Lee, Jae-Eun ; Kim, Jung-Tae ; Jung, Gun-Ho ; Lee, Yu-Young ; Kim, Sun-Lim ; Kwon, Young-Up ;
KOREAN JOURNAL OF CROP SCIENCE, volume 59, issue 1, 2014, Pages 73~82
DOI : 10.7740/kjcs.2014.59.1.073
This study was conducted to investigate the ear and kernel characteristics of waxy corn during ripening by double cropping, and to understand the pattern of starch accumulation in endosperm of waxy corn kernels. Chalok4 and Ilmichal were sown at April 20 (first cropping) and July 20 (second cropping) in 2011~2012. The accumulated temperature from silking to harvesting was about
. It takes 23~24 days when Chalok4 and Ilmichal were sown in April 20, but July 20 sowing takes 32~35 days. Ear length and kernel set length were significantly shorter in second cropping (p<0.05). Kernel length, kernel width, 100-kernel weight, and starch content of waxy corn were increased as ears matured (p<0.05). Growth temperature was getting decreased during the ripening stage of second cropping, the rate of ear and kernel development had slowed. Starch granules started to accumulate in the cells around the pericarp, then developed in the cells around the embryo. In the second cropping, starch granules in the kernel of waxy corn were less compact than the first cropping, harvesting time of waxy corns can be extended. These results will be helpful to farmers for double cropping of waxy corn cultivation and management.
Seedling Emergence and Initial Growth between Water and Dry Seeding in Forage Millet
Ahn, Seok-Hyeon ; Chung, Nam-Jin ;
KOREAN JOURNAL OF CROP SCIENCE, volume 59, issue 1, 2014, Pages 83~88
DOI : 10.7740/kjcs.2014.59.1.083
This research was carried out to determine the characteristics of germination in relation to temperature, and seedling emergence and growth affected by soil moisture in forage millet. The seeds of forage millet could germinate at more than
at the rate of 0, 90.5, 97.3 and 96.8% respectively 10 days after seeding at 10, 15, 20 and
. The result showed that the temperature needs to be
or more for the seeds to germinate. The effects of seeding depth on the growth characteristics and emergence of millet seed were investigated in waters and direct seeding methods by thoroughly mixing the seed and soil. In water treatment, the emergence rates were 3.7% at
, 7.6% at
, 6.3% at
, while direct seeding treatment showed the emergence rates of 65.6, 75 and 71% at 15, 20 and
, respectively. At 15, 20, and
, seeds in water seeding could germinate at 0.5, 1.8, 1.5 cm of soil depth, while in direct seeding, they could germinate at the depth of 9.5, 10.0, 9.9 cm. When the initial growth characteristics of the seeds were investigated, there was positive correlation between seeding depth and mesocotyl length in both water and direct seed methods. Growth and development in terms of leaf age, root length, coleoptiles and mesocotyl length, and plant height were found maximum at 0.5 cm soil depth for water seeding, and 3-5 cm soil depth for direct seeding. Results showed that there were close relationship among temperature, soil depth and moisture acquiring methods, and the combination of these factors greatly affected the initial growth characteristics and development of millet seeds. It can be concluded that, to get good seedling stand and germination of millet seed, millet should grown in field condition at the depth of 0.5 cm or less for water seeding, and 3-5 cm for direct seeding method.
Estimating the Yield of Potato Non-Mulched Using Climatic Elements
Choi, Sung-Jin ; Lee, An-Soo ; Jeon, Shin-Jae ; Kim, Kyeong-Dae ; Seo, Myeong-Cheol ; Jung, Woo-Suk ; Maeng, Jin-Hee ; Kim, In-Jong ;
KOREAN JOURNAL OF CROP SCIENCE, volume 59, issue 1, 2014, Pages 89~96
DOI : 10.7740/kjcs.2014.59.1.089
We aimed to evaluate the effects of climatic elements on potato yield and create a model with climatic elements for estimating the potato yield, using the results of the regional adjustment tests of potato. We used 86 data of the yield data of a potato variety, Sumi, from 17 regions over 11 years. According to the results, the climatic elements showed significant level of correlation coefficient with marketable yield appeared to be almost every climatic elements except wind velocity, which was daily average air temperature (Tave), daily minimum air temperature (Tmin), daily maximum air temperature(Tmax), daily range of air temperature (Tm-m), precipitation (Prec.), relative humidity (R.H.), sunshine hours (S.H.) and days of rain over 0.1 mm (D.R.) depending on the periods of days after planting or before harvest. The correlations between these climatic elements and marketable yield of potato were stepwised using SAS, statistical program, and we selected a model to predict the yield of marketable potato, which was $y
The Effect of Pyroligneous Acid on Leaf Tissue and Root Growth of Ginseng(Panax Ginseng C. A. Meyer)
Seong, Bong-Jae ; Han, Seung-Ho ; Kim, Sun-Ick ; Kim, Hyun-Ho ; Cho, Jin-Woong ;
KOREAN JOURNAL OF CROP SCIENCE, volume 59, issue 1, 2014, Pages 97~100
DOI : 10.7740/kjcs.2014.59.1.097
To explore the possibility of using pyroligneous acid for environmentally friendly ginseng farming, this study observed samples of ginseng whose shoots were treated with pyroligneous acid sprays beginning in mid June, which is after foliation stage. The spongy tissue structure got thickened from triple layers to quadruple layers with the pyroligneous acid regardless of the concentration. The upper and lower epidermis cell of the leaves as well as the leaf mesopyll cells also became thicker. Compared to the no-treatment group, the overall growth and development of ginseng roots treated with pyroligneous acid were excellent. Accordingly, it is believed that pyroligneous acid can be an environmentally friendly alternative to conventional agro-chemicals applied to ginseng that can be used to facilitate the growth and development of ginseng.
The Effect of Nitrogen Rates on The Growth and Yield of Maize in Agricultural Fields with the Stream
Lim, Jung Taek ; Chang, Jae-Hyuk ; Rho, Ye-Jin ; Ryu, Jin-Hee ; Chung, Dong Young ; Cho, Jin-Woong ;
KOREAN JOURNAL OF CROP SCIENCE, volume 59, issue 1, 2014, Pages 101~108
DOI : 10.7740/kjcs.2014.59.1.101
This study was conducted to investigate the effect of nitrogen rates on the growth characteristics and yield of maize in agricultural fields with the stream. This indicates the necessity and optimal level of nitrous fertilization to examine the possibilities of quantity enhancement. Plant height and ear height of maize were not significantly different among the nitrogen rates. Stem diameter and leaf area index increased in the nitrogen treatment compared to untreated control. Changes of photosynthetic rate in maize leaves depending on nitrogen treatments increased as much as nitrogen rates were increased up to the highest level, 36 kg per 10a. NDF and ADF content levels of maize were investigated with different nitrogen rates regardless of treatments. In the case of NDF, it showed a tendency to decrease after 8 days of tasseling date. ADF had also decreased after 15 days of tasseling date. Nitrogen uptake of maize leaves with different nitrogen rates showed the highest level,
with 36 kg per 10a on the tasseling date. Ear length and 100-kernel weight, there were no significant differences according to yield and the components with different nitrogen rates. Ear diameter and kernel number, nitrogen rates of 18 kg and 36 kg were increased compared to nitrogen rate of 9 kg per 10a and untreated control. The pericarps in 9 kg nitrogen rate and control were thicker than those of 18 kg and 36 kg treatment. The yield, 18 kg, 36 kg, and 9 kg treatments were increased by 10.96%, 9.27%, and 3.31%, compared to control. The component analysis on maize kernel with different nitrogen rates, starch showed no significant differences among treatments. Total sugar in 18 kg nitrogen treatment represented the highest content level, 6.37%. In addition, Amylopectin in 18 kg treatment showed the highest content level of 90.38%. However, amylose in 18 kg treatment showed the lowest level, 9.62% which drew a conclusion that waxy of 18 kg treatment is considered to be the strongest one. From the results described above, nitrous fertilization is essential to grow maize in agricultural fields with the stream. The optimum level of nitrous fertilization is considered 18 kg per 10a.