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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 49, Issue 6 - Dec 2004
Volume 49, Issue 5 - Dec 2004
Volume 49, Issue spc1 - Oct 2004
Volume 49, Issue 4 - Sep 2004
Volume 49, Issue 3 - Jun 2004
Volume 49, Issue 2 - Jun 2004
Volume 49, Issue 1 - Mar 2004
Selecting the target year
Growth and Yield of Rice by Field Water Management for Water-Saving Irrigation
Choi Jang Soo ; Won Jong Gun ; Ahn Deok Jong ; Park Sang Gu ; Lee Seong Phill ;
KOREAN JOURNAL OF CROP SCIENCE, volume 49, issue 6, 2004, Pages 441~446
To reduce water input by water-saving irrigation techniques a field study was carried out with three water managements, very shallow intermittent irrigation (VSII, 2cm), shallow intermittent irrigation (SII, 4cm) and traditional deep water irrigation (DWI, 10cm) for two years. Rice growth and grain yields of three water managements were not significantly different. However, when the water irrigation depth was decreased, the breaking and lodging resistance were increased and the roots were widely distributed into deeper paddy soil. More numbers of both annual and perennial weeds were occurred in VSII than in DWI at maximum heading stage and only the number of perennial weeds was three times in VSII than in DWI at heading stage. The total water inputs were 777, 654 and 527 mm in DWI, SII and VSII, therefore the water-saving rates of VSII and SII were
compared to typical deep water irrigation. The water-productivity (Rice yield to water input) was highest in VSII as 0.94 and followed by SII as 0.76 and DWI as 0.63. In the face of water scarcity, it is very important to find or develope water saving irrigation system and find ways to increase the productivity of water used for rice cultivation
Development of Recirculating Wick Hydroponic Techniques for Safe Seed Tuber Multiplication of Potatoe
Kang Bong Kyoon ; Kim Chan Woo ;
KOREAN JOURNAL OF CROP SCIENCE, volume 49, issue 6, 2004, Pages 447~451
This study was conducted to establish the proper techniques of the recirculating wick hydroponics for safe seed tuber proliferation of potatoes (Solanum tuberosum L. CV. Dejima). To achieve these, several intact tubers (5, 10 and 20 g) and cut seed-pieces (two or four) were treated in wick hydroponic system beds. A polystyrene box (31cm in width, 20cm in height, 51cm in length, and
in volume) was placed on a styrofoam hox. Eight wicks
were put into each polystyrene hox and the boxes were filled with perlite + peatmoss (1 : 2, v/v) medium. Top fresh weight per plant increased with increasing the tuber size from 10 to 30g/tuber. As the tuber size increases from 10 to 30 g/tuher in case of uncut tuber, the marketable tuber (>5g) production per plant increased from 83.8 to 141.8 g/plant and the marketable tuber (>5g) production per plant of cut tuber was slightly higher than that of uncut treatment. Total tuber yield ranged from 4.16 to
and the percentage of seed tubers was greater than
for all treatments. These results indicate that seed tuber should be cut to produce large tuber
in the recirculating wick hydroponic system.
Quantitative Analysis of Eupatilin and Jaceosidin in Artemisia herba
Ryu Su-Noh ; Kang Sam Sik ; Kim Ju Sun ; Ku Bon Il ;
KOREAN JOURNAL OF CROP SCIENCE, volume 49, issue 6, 2004, Pages 452~456
Artemisia Herb is the dry aboveground part of Artemisia asiatica (Compositae). This is listed officially in the Korean Herbal Pharmacopoeia and used mainly in stopping all kinds of bleeding, regulating menses and curing menstrual disorders as well as in alleviating pain. Eupatilin and jaceosidin were isolated from Sazabalsuk and Sajuarisuk. and identified by means of spectral methods
and quantitative analysis using HPLC. Regression equations for two flavonoid component standards obtained from Artemisia asiatica were
for jaceosidin. The eupatilin content of Sazabalsuk was 240mg, jaceosidin was 10mg in 100 g dry leaves. The Sajuarisuk were 330mg, 123mg in 100g dry leaves, respectively.
Effect of Alternative Row Pinching on Growth and Yield in Soybean
Kim Ik Je ; Son Seok Yong ; Nam Sang Young ; Ryu In Mo ; Kim Tae Jung ; Lee Cheol Hee ; Kim Tae Su ;
KOREAN JOURNAL OF CROP SCIENCE, volume 49, issue 6, 2004, Pages 457~462
Lodging is one of the most serious problems in soybean cultivation. Therefore, improved cultural methods to reduce lodging as well as to increase photosynthetic ability should be mostly desirable to increase soybean production. The test variety was 'Hwangkeumkong' which was pinched at V7 stage. The greatest difference in canopy height between rows was shown when every other row was pinched, which also recorded the most effective reduction in lodging. The 9th leaf of soybean plants in non-pinching rows of alternative non-pinching and pinching plot showed the highest photosynthetic ability due to the greatest difference in canopy height. Although leaf area index was higher in pinched rows in average after 17 August, alternative pinching of every other row recorded the highest LAI on 5 September. Alternative pinching of every other row resulted
higher yield than non-pinching or complete pinching due to the increases of number of grains in the upper part of main stem and average grain weight of non-pinching rows and in alternative pinching.
Estimation of Leaf Area Index by Plant Canopy Analyzer in Rice
Park H. K. ; Choi W. Y. ; Back N. H. ; Kim S. S. ; Kim B. K. ; Kim K. K. ;
KOREAN JOURNAL OF CROP SCIENCE, volume 49, issue 6, 2004, Pages 463~467
This study was carried out to estimate of leaf area index (LAI) rapidly using plant canopy analyzer, comparing with specific leaf area (SLA) and leaf area ratio (LAR) in rice from 2001 to 2002 at Honam Agricultural Research Institute in Iksan Korea. The relationship between LAI values taken by plant canopy analyzer and by leaf area meter showed high correlation at each growth stages of rice. LAIs obtained by plant canopy analyzer were highly correlated with that by leaf area meter which were the highest in Dongjinbyeo and the lowest in Hapcheon1. Specific leaf area (SLA) of all rice cultivars were tend to decrease remarkably with the progress of growth stage. It was found that the SLA of Dasanbyeo was the highest and that of Hapcheon1 was the lowest among rice cultivars tested. Leaf area ratios (LARs) was also decreased with the progress of growth stage.
Tocotrienol and Tocopherol Contents of Rice Bran by Milling Recovery
Park Kyeong-Yeol ; Kang Chang-Sung ; Cho Young-Cheol ; Lee Yong-Sun ; Lee Young-Hyun ; Lee Young-Sang ;
KOREAN JOURNAL OF CROP SCIENCE, volume 49, issue 6, 2004, Pages 468~471
and tocopherol (T) are well-known antioxidant vitamin E isomers that are enriched in rice bran, most of which is removed during polishing process. To verify the polishing-dependent fractional content of tocotrienol and tocopherol, harvested brown rice of 4 cultivars were polished by 4.0, 6.4, 8.0, 9.6, and
(w/w) and resultant bran powder and rice were used for
and T analysis. Polishing degree affected bran
content in that bran polished by
content compared to other polishing degrees except in cv. Chucheongbyeo which showed similar
content from 4.0 to
polishing. In case of tocopherol, bran polished by
exhibited highest T content in all tested cultivars. In general,
distributed in higher quantity in exterior i.e., in less polished bran, while T showed relatively less decrease with enhanced polishing degree. Consequently, total vitamin E content in bran as calculated by the summation of
and T became less dependent on polishing degree in that bran polished between 6.4 to
exhibited no statistical differences. The rice of cv. Chuchongbyeo, remained after polishing, exhibited similar vitamin E content up to
polishing, above which significant vit E loss could be observed. These results suggest that polishing less than
is desirable to minimize the loss of tocotrienols and tocopherols during polishing.
Effects of Aeration Period and Temperature after Imbibition on Growth of Mungbean Sprouts
Kang Jin Ho ; Ryu Yeong Seop ; Yoon Soo Young ; Jeon Seung Ho ; Cho Sook Hyon ;
KOREAN JOURNAL OF CROP SCIENCE, volume 49, issue 6, 2004, Pages 472~476
Lateral roots formed on mungbean sprouts should lower their quality. The study was carried out to clarify the effects of aeration periods (AP; 1, 2, 3, and 4 hours) and temperature (AT; 20, 30, and
) after 5 hour seed imbibition into 50 ppm benzyladenopurine (BA) solution on growth and morphological characters of mungbean (cv. Keumseongnogdu, Owoolnogdu and Zhong Lu 1) sprouts. On the 6th day, the mungbean sprouts were sorted by 4 categories on the base of hypocotyl lengths; > 7cm, 4 to 7cm, < 4cm, and non-germination to calculate their composition rates, number of lateral roots, lengths of hypocotyl and root, diameters at middle and upper parts of hypocotyl, fraction fresh and dry weights were measured. AP more affected growth of the cultivars than AT showing little effect on them. In the composition rate of the above 4 categories, cv. Zhong Lu 1 had the highest rate in longer than 7cm but nearly the same rate in AP treatments. Rates of longer than 4cm hypocotyls in cv. Keumseongnogdu, Owoolnogdu were increased with longer AP but their rates of shorter than 4cm showed reverse response to the former. Formation rate and number of lateral roots per sprout were decreased with longer AP, showing more severe decrement when delayed 3 to 4 hour AP. Upper part of hypocotyls and roots were more thickened and shortened in longer AP, respectively. Total fresh weights had no significant difference between AP treatments while hypocotyl fresh weights were increased with longer AP. It was concluded that in mungbean sprout culture aeration from BA treatment to the first watering permitted at least 4 hours.
Effect of Benzyladenopurine Soaking Period on Growth of Mungbean Sprouts
Kang Jin Ho ; Ryu Yeong Seop ; Yoon Soo Young ; Jeon Seung Ho ; Kim Hee Kyu ;
KOREAN JOURNAL OF CROP SCIENCE, volume 49, issue 6, 2004, Pages 477~481
In bean sprout culture water imbibition and benzyladenopurine (BA) treatment are done at the same time. The study was carried out to check the effect of treatment period (3, 5, and 7 hours) on growth of mungbean (cv. Keumseongnogdu, Owoolnogdu, and Zhong Lu 1) sprouts and to analyse its absorption amount on the base of their moisture content. The 3 cultivar seeds were soaked in 50 ppm BA solution immediately before 3 hour aeration and then cultured for 6 days. The sprouts were sorted by 4 categories on the base of hypocotyl length; > 7cm, 4 to 7cm < 4cm, and non-germination, and their morphological characters, fresh and dry weights were measured. The cultivar Zhong Lu 1 had the highest rate in longer than 7cm hypocotyls of the three cultivars but the lowest one in shorter than 4cm. Rates of the above 4 categories in cv. Keumseongnogdu, Owoolnogdu showed no significant difference between the treatment periods while one of longer than 7cm hypocotyls in cv. Zhong Lu1 was decreased with longer treatment period. Lateral roots were less formed with longer treatment period, especially as lengthened from 3 to 5 hours. Hypocotyl and root were also lengthened with longer treatment period and hypocotyl was more thickened in 5 hour treatment period than in the two others. Total fresh and dry weights per sprout showed no significant difference between treatment periods although cv. Zhong Lu1 relatively faster grew than the other cultivars. In the case of shorter than 5hour treatment periods the absorption amount of BA was the greatest in cv. Zhong Lu1 but in 7 hour treatment period it was the greatest in cv. Keumseongnogdu and Zhong Lu 1.
Effect of Benzyladenopurine Concentration in Soaking Solution on Growth of Mungbean Sprouts
Kang Jin Ho ; Ryu Yeong Seop ; Yoon Soo Young ; Jeon Seung Ho ; Kim Seung Rack ;
KOREAN JOURNAL OF CROP SCIENCE, volume 49, issue 6, 2004, Pages 482~486
Benzyladenopurine (BA), a synthetic chemical commonly used for bean sprout culture, should be minimized for wellbeing foods or not be applied. The study was done to check the effect of different BA concentrations treated during 5 hour imbibition on growth and morphological characters of mungbean sprouts. The mungbean seeds of 3 cultivars (Keumseongnogdu, Owoolnogdu, and Zhong Lu 1) were imbibed for 5 hours in the solutions with different BA concentrations (0, 25, 50, 75, and 100 ppm) before 3 hour aeration. On the 6th day after culture, the mungbean sprouts were classified by 4 categories on the base of hypocotyl length; > 7cm, 4 to 7cm, < 4cm, and non-germination, and their morphological characters, fresh and dry weights were measured. Regardless of cultivars the composition rate of hypocotyls of longer than 7cm was decreased with increased BA concentration over 50 ppm while the reverse result was true in the rate of shorter than 4cm. In the rate of 4 to 7cm. cv. Owoolnogdu showed the highest rate in its 50 ppm concentration although cv. Keumseongnogdu and Zhong Lu 1 showed similar result to the above two rates. Formation rate and its number of lateral roots were largely changed around 50 ppm concentration but the roots was not formed in over its 75 ppm concentration. Hypocotyl and root lengths of all the cultivars were shortened with increased BA concentration. In the diameter of middle part of hypocotyl, 3 cultivars showed nearly the same responses as the rate of 4 to 7cm hypocotyls. Hypocotyl and total fresh weights per sprout were heavier in BA treated sprouts than in no treated ones but the weights of the former sprouts were not influenced by its different concentrations.
Growth of Mungbean Sprouts and Commodity Temperature as Affected by Water Supplying Methods
Kang Jin Ho ; Ryu Yeong Seop ; Yoon Soo Young ; Jeon Seung Ho ; Jeon Byong Sam ;
KOREAN JOURNAL OF CROP SCIENCE, volume 49, issue 6, 2004, Pages 487~490
Methods for culturing bean sprouts could be divided into two main groups of overspraying and underwatering according to water supplying. The study was done to measure the effect of water supplying method on growth of mungbean sprouts and temperatures inside their culture boxes. The morphological characters, fresh and dry weights were measured on the 6th day after culturing, but temperatures of the boxes were recorded daily by dataloggers. Lateral roots was not formed in the under-watering method (UM) while partially done in the over-spraying method (OM). OM had longer hypocotyl but UM had longer root compared to the other. Two water supplying methods, however, had nearly similar total length adding hypocotyl and root lengths, diameters of middle and upper parts of hypocotyl. OM showed more total fresh weight than UM mainly resulting from increment of hypocotyl fresh weight. The fresh weight increment in OM was caused by relatively higher temperature of culture box compared to UM.
Grain Shattering Resistance and Its Screening Method of Sesame
Kim Dong-Hwi ; Kang Chul-Whan ; Park Chang-Hwan ; Chae Young-Am ; Seong Nak-Sul ;
KOREAN JOURNAL OF CROP SCIENCE, volume 49, issue 6, 2004, Pages 491~495
The existing shattering-resistant sesames had low adaptability and yield potential in Korean environment. Great improvements have been made in these shattering-resistant sesames. We take an optimistic view of success for development of shattering-resistant sesames with high yield potential and superior agronomic characters. This study was carried out to investigate cause of shattering resistance and testing method of effective shattering habit. Shattering-resistant sesames had some specific tissue structures. Shattering resistance of placenta adhesion (PA) sesames was caused by strong seed holding of placenta in capsule, and that of seamless (SL) sesames was caused by nonexistence of seam in capsule. Shattering resistance of indehiscent(ID) sesames resulted because they had thicker mesocarp barrier at the zone of dehiscence compared with that of normal varieties. SL, ID and PA sesames had some variation plants who had high shattering rate. This was judged that evolution direction of these sesames means direction that shattering habit increase. Effective drying method in order to measure shattering resistance was drying condition over 20 days in natural temperature
and 10 days in drying oven
Quantitative Analysis of Sesamin and Sesamolin in Various Cultivars of Sesame
Kim Geum-Soog ; Kim Dong-Hwi ; Jeong Mi-Ran ; Jang In-Bok ; Shim Kang-Bo ; Kang Chul-Hwan ; Lee Seung-Eun ; Seong Nak-Sul ; Song Kyung-Sik ;
KOREAN JOURNAL OF CROP SCIENCE, volume 49, issue 6, 2004, Pages 496~502
The development of sesame varieties which contain high contents of lignan compounds has been progressed in Korea. This study was carried out to get the basic information for the breeding of high quality sesame varieties and the development of health functional food sources using lignan compounds from sesame. The contents of sesamin and sesamolin were
, respectively, from sesame cultivated in 2002 and those were
, respectively, from sesame cultivated in 2003. The content of sesamine was high in the order of Danbaek (6.22 mg/g), Seongbun (5.94 mg/g), Namda (5.83 mg/g), and Naman (5.59 mg/g) producted in 2002 and Seongbun (6.27 mg/g), Dasak (5.53 mg/g), Danbaek (5.50 mg/g), chinbaek (5.45 mg/g), and Seodun (5.41 mg/g) producted in 2003. The content of sesmoline was high in the order of Hwangbaek (3.27 mg/g), Seongbun (3.26 mg/g), Annam (3.22 mg/g), Hanseom (3.17 mg/g), and Danbaek (3.16 mg/g) producted in 2002, and Seongbun (3.21 mg/g), Seodun (3.14 mg/g), Pungan (3.10 mg/g), Naman (3.09 mg/g), and Danbaek (3.04 mg/g) producted in 2003. The contents of sesamin and sesamolin of Yangbaek, which has used as a standard variety for sesame breeding, were relatively lower than in any other varieties. These resluts suggest that Yangbaek is not the proper variety as a standard variety for development of high quality sesame. In conclusion, proper good variety as a standard variety for sesame breeding must be determined after careful consideration on the major quality factors including crude oil and lignan compounds as well as agricultural characteristics to develop high quality sesame varieties containing high contents of lignan compounds.
Effects of Type and Amounts of Sulfur Fertilizer on Growth and Seed Yield of Safflower
Kim Min Ja ; Kim In Jae ; Nam Sang Young ; Lee Cheol Hee ; Song Beom Heon ;
KOREAN JOURNAL OF CROP SCIENCE, volume 49, issue 6, 2004, Pages 503~506
To clarify the efficient application method of sulfur in safflower, we investigated the growth and seed yield as affected by ammonium sulfate (AS) and sulfur powder. AS was applied to the soil with four levels of 0, 4, 8, and 12 kg/10a and was applied by foliar application with 2 kg/10a as sulfur content compared with sulfur powder 20 kg/10a. By the application of sulfur fertilizer, plant height, stem diameter, and weight of stem and leaves tended to be greater than control. AS was more efficient than sulfur powder in growth of safflower. Sulfur application showed positive effect on yield components and seed yield was increased by
compared to control. In application effects, AS and foliar application were more efficient than sulfur powder and soil application, respectively.
Variation of Contents and Color Difference of Anthocyanin by Different Cultivation Year in Black Soybean Seed
Joo Yong-Ha ; Park Jae-Hun ; Choung Myoung-Gun ; Yun Seung-Gil ; Chung Kil-Woong ;
KOREAN JOURNAL OF CROP SCIENCE, volume 49, issue 6, 2004, Pages 507~511
This research was carried out to offer the basic informations about new varietal breeding for specific use and physiological characteristics through investigation of detection, content variation and color difference of anthocyanin individual pigments within seed coats in domestic black soybean. The seed of thirteen cultivars such as Geomjeongkong 1, Geomjeongkong 2, Seonheugkong, Tawonkong, Ilpumgeomjeongkong, Geomjeongolkong, Cheongjakong, Jinju 1, Heugcheongkong, Juinunikong-Y, Juinunikong-G, Geomjeongkong 3, Geomjeongkong 4 was tested. C3G (cyanidin-3-glucoside) was detected in only Geomjeongkong 1 and Seonheugkong but D3G (delphinidin-3-glucoside) and C3G were found in Heugcheongkong. The rest cultivars that there were three anthocyanins such as D3G, C3G, and Pt3G (petunidin-3-glucoside). Anthocyanin content of tested cultivars showed a high variation. The ranges of D3G, C3G, Pt3G, and TA (total anthocyanin) contents were
, respectively. These contents showed variation among cultivars as well as variation between two years, 2001-2002. As a result of variation of anthocyanin color difference, the ranges of L (lightness), a (redness), and b (yellowness) as Hunter's value were
, respectively, and these color differences showed variation among cultivars and also variation between two years, 2001-2002. D3G, C3G, Pt3G, and TA showed reciprocally a positive correlation being representive of high significance.
Change in Anthocyanin Contents by Cultivation and Harvest Time in Black-Seeded Soybean
Joo Yong-Ha ; Park Jae-Hun ; Kim Yeong-Ho ; Choung Myoung-Gun ; Chung Kil-Woong ;
KOREAN JOURNAL OF CROP SCIENCE, volume 49, issue 6, 2004, Pages 512~515
The purpose of this experiment was to obtain informations about variation of anthocyanin content within black-seeded soybean testa according to cultivation and harvest time. Three varieties, Ilpumgeomjeongkong, Geomjeongkong 2, Tawonkong were tested in this experiment. Seeds were planted on April 15 (early planting), May 15 (optimum planting), and June 15 (late planting), respectively. Harvest time was R6 (full seed), R7 (physiological maturity), and R8 (harvest maturity), respectively. The content of delphinidin-3-glucoside (D3G), cyanidin-3-glucoside (C3G), petunidin-3-glucoside (Pt3G), and total anthocyanin (TA) had all increased gradually from April 15 to June 15 as well as R6 to R8. There was no varietal difference in D3G, but C3G and TA of Geomjeongkong 2 were higher than other two varieties. Pt3G was the highest Tawonkong of varieties. The value of L as anthocyanin color difference had gradually decreased from April 15 to June 15 and R6 to R8, Geomjeongkong 2 among three varieties was the lowest. The value of a was the highest on May 15 and increased gradually from R6 to R8, Geomjeongkong 2 was the lowest. The value of b was the highest on June 15 as late planting and was the highest Geomjeongkong 2 of varieties. The value of b had increased gradually from R6 to R8. D3G, C3G, Pt3G, and TA contents showed mutually high positive correlation and these four characters were represented high negative correlation with L value but showed high positive correlation with a and b values. The value of L showed high negative correlation with a and b values. The value of a showed high positive correlation with b value.
Varietal Difference in Feed Value of Rice Straw and Its Relationship with Agronomic Traits
Kim Chang-Ho ;
KOREAN JOURNAL OF CROP SCIENCE, volume 49, issue 6, 2004, Pages 516~521
The straw of thirty one rice varieties were evaluated for their feed value and related agronomic traits. The rice straw were hand-harvested, dried to constant weight at
and ground through a 20 mesh seive in a Wiley mill, analyzed with crude protein (CP), acid detergent fiber (ADF) and neutral detergent fiber (NDF). Relative feed value (RFV) was calculated from NDF and ADF. The sum of standardized score was estimated by dry weight of rice straw, content of CP, ADF and NDF. The straw yield of Daeanbyeo was 725.9 kg/10a, showed heighest value among the varieties and remainder was in the order of Keumnambyeo, Donginbyeo #1 and Chucheongbyeo. Crude protein (CP) content in a Dasanbyeo was higher than those in other varieties. The content of ADF in a Junghwabyeo and NDF in a Sobaegbyeo were
, respectively, showed lowest value among the varieties. The rice straw of Dunnaebyeo, Obongbyeo, Seoanbyeo, Keumobyeo, Hwaseongbyeo, Noganbyeo and Gyehwabyeo belonged to the high feed value varieties by estimation of cluster analysis, sum of standardized score and RFV. The content of CP was found to be positively related with dry weight of leaf and grain, but negatively related with heading days after seeding, culm length, specific leaf weight (SLW) and dry weight of stem. ADF and NDF were found to be positively related with heading days after seeding, culm length, SLW and dry weight of leaf, but negatively related with dry weight of stem. The sum of standardized score and RFV were the only positive relationship with dry weight of stem and negative relationship with other traits.
Growth and Anaerobic Glycolysis in Barley Seeding in Response to Acute Hypoxia
Choi Heh Ran ; Lim Jeong Hyun ; Kim Jung Gon ; Choi Kyeong-Gu ; Yun Song Joong ;
KOREAN JOURNAL OF CROP SCIENCE, volume 49, issue 6, 2004, Pages 522~527
Barley growing in paddy fields often suffers from wet-injury due to oxygen deficiency in rhizospere caused by excessive water in the soil. This study was conducted to investigate responsiveness of growth, development and anaerobic glycolysis enzymes to acute hypoxia in barley seedlings. Barley seedlings at the third leaf stage were subjected to hypoxia (1 ppm dissolved oxygen) by sparging the culture solution with nitrogen gas for up to seven days. Length and fresh weights of the shoot and root were affected little by hypoxia for up to 5 days. But root dry weight was slightly decreased by hypoxia for 7 days. In the root, alcohol dehydrogenase and lactate dehydrogenase activities increased drastically under hypoxia, reaching at their maximum levels in 3 to 5 days of hypoxia and decreasing slightly thereafter. However, the activities of both enzymes changed little in the shoot. Increases of their activities in the root were contributed by all the isozymes found in barley. These results suggest that barley seedlings first adapt to hypoxia by rapidly activating fermentative glycolysis to stabilize cellular pH and to increase energy production for the following morphological adaptative changes.
Manipulating Isoflavone Levels in Mungbean Sprouts by Chemical Treatment
Lee Ji-Hyun ; Chung Il-Min ; Park Sei-Joon ; Kim Wook Han ; Kim So-Yeun ; Kim Jin-Ae ; Jung Soosuk ;
KOREAN JOURNAL OF CROP SCIENCE, volume 49, issue 6, 2004, Pages 528~532
We have studied physiological responses of mung bean sprout to the treatment of elicitors. Chemicals such as salicylic acid and methyl jasmonic acid are not only the intermediates found in plant defense system but also could affect plant secondary metabolism. We found that mild treatment of salicylic acid and acetyl salicylic acid (aspirin) increase isoflavone production dramatically in mung bean sprout which has very low level of isoflavones compared with soybean sprout. The isoflavone content in salicylic acid treated- and acetyl salicylic acid treated-mung bean sprout was about 2.3 and 2.2 times higher than that of control, respectively. However, the increasing patterns of isoflavone in cotyledon and hypocotyl and root were not identical. The major increase among isoflavone fractions in cotyledon was led by the increase in malonylglycitin and malonyldaidzin level. Whereas, the increase in hypocotyl and root was led by malonyldaidzin. Methyl jasmonic acid did not show statistically significant increase in mung bean sprout. With this result, we were able to propose the non-transgenic method, which can control the isoflavone production in germinating mung bean.
Introgression of Oryza minuta into Rice, Oryza sativa
Jin Feng Xue ; Kang Kyung-Ho ; Kwon Soo-Jin ; Jeong Oh-Young ; Le Heung Linh ; Moon Huhn-Pal ; Ahn Sang-Nag ;
KOREAN JOURNAL OF CROP SCIENCE, volume 49, issue 6, 2004, Pages 533~538
An introgression line, WH79006 was produced from a single plant from
families from a cross between Hwaseongbyeo used as a recurrent parent and O. minuta (BBCC, Ace. No. 101154) as a donor parent, which was subsequently self-pollinated for three generations. WH79006 resembled the O. sativa parent, Hwaseongbyeo. However it differed from Hwaseongbyeo in several traits including days to heading, culm length, grain size, spikelets per panicle and fertility. These differences in the traits between WH79006 and Hwaseongbyeo can be attributed to the O. minuta introgressions. To detect the introgressions, 294 SSR markers of known chromosomal position have been used. At least, 28 introgressed chromosomal segments have been identified using SSR markers and they map to all chromosomes except chromosome 2. The size of the introgressed segments ranged from 4 to 35cM. A QTL related to culm length was detected using 75
plants from the Hwaseongbyeo/WH79006 cross. This QTL, cl6 located on chromosome 6 explained
of the total phenotypic variation in the population. This QTL has not been detected in the previous QTL studies between Oryza sativa cultivars, indicating potentially novel alleles from O. minutan
QTL for Quality Properties in the Milyang23
Gyhobyeo Recombinant Inbred Lines by Different Locations
Kwak Tae-Soon ; Yeo Jun-Hwan ; Eun Moo-Young ; Cha Young-Soon ;
KOREAN JOURNAL OF CROP SCIENCE, volume 49, issue 6, 2004, Pages 539~545
The purpose of this study was to locate the quantitative trait loci (QTL) associated with quality properties in the recombinant inbred lines derived from the 'Milyang 23' and 'Gihobyeo' cross. Four quality-related traits; protein content, amylose content, fat acid content and sensory value were measured. Eight QTLs for protein content were detected on chromosomes 1 (two loci), 3, 6, 7 and 8 (three loci), each accounting for
of the phenotypic variation. Three QTLs for amylose content were detected on chromosomes 6 and 7 (two loci), each explaining from
of the phenotypic variation. Six QTLs for fat acid content were detected on chromosomes 2 (two loci), 3, 6 (two loci) and 7, each explaining form
of the phenotypic variation. Six QTLs for sensory value were detected on chromosomes 2, 6, 7(two loci) and 8 (two loci), each accounting for
of the phenotypic variation.
Priority Setting for Future Core Technologies in Crops Research using Analytic Hierarchy Process
Lee Jong-In ; Cho Keun-Tae ; Chae Je-Cheon ;
KOREAN JOURNAL OF CROP SCIENCE, volume 49, issue 6, 2004, Pages 546~551
The study was focused on setting priority for future core technologies in crops using Analytic Hierarchy Process (ARP). The technologies were derived by Delphi method. Evaluation criteria for the priority setting were decided as 'technology', 'market oriented', and 'public concerns' by council. The future core technologies were divided as four groups by importance and R&D level. Technologies in upper two groups were considered in the study. Group I had high importance and high R&D level. Group II had high importance and lower R&D level. Questionnaires were given to 8 specialists in crops. As the results, 'public concerns' was decided as the most important evaluation criterion. The most important technologies are 'developing of growing technology that has low inputs and production cost for environmental friendly agriculture' in group I, and 'developing of gene searching, characteristics transformation, and commercialization technologies for crops using bio-technology' in group II.
Development and Improvement of the Online Article Contribution Management System Based on KISTI-ACOMS for the Korean Society of Crop Science
Park Jae-Won ; Kang Mu-Yeong ; Yoon Hwa-Mook ;
KOREAN JOURNAL OF CROP SCIENCE, volume 49, issue 6, 2004, Pages 552~562
KISTI(Korea Institute of Science and Technology Information) has developed the
KITTIACOMS (KISTI-Article COntribution Management System)
as part of the national project for automating the process of processing academic information by societies, in order to convert journals published by academic societies in Korea into an electronic form and make them accessible on the Internet. This system has been developed in the year 2001 and has since been distributed to societies free of charge. The number of societies requesting the service has risen recently, which prompted us to take more recommendations of the societies that adopt this system into account in expanding and standardizing the area of service being provided by the system. This paper will investigate the functions of KISTI-ACOMS constructed for use in the Korean Society of Crop Science and list the functions and requirements for the next system to enhance the on-line paper management system.