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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
Editor in Chief :
Volume & Issues
Volume 52, Issue 4 - Dec 2007
Volume 52, Issue 3 - Sep 2007
Volume 52, Issue 2 - Jun 2007
Volume 52, Issue 1 - Mar 2007
Selecting the target year
Genetic Ana1ysis for Rice Grain Properties Using a Doubled Haploid Population
Qin, Yang ; Kim, Suk-Man ; Sohn, Jae-Keun ;
KOREAN JOURNAL OF CROP SCIENCE, volume 52, issue 2, 2007, Pages 123~128
Demand for high quality rice has always been a major factor in the international rice marketing. In the present study, doubled haploid (DH) population derived from anther culture of a Tongil/japonica hybrid was used for genetic analysis of rice grain quality. The average values of DH lines for grain weight, grain length and the ratio of grain length to width were near the mid-parent value. More than 40% DH lines showed transgressive segregation for grain weight, length, amylose and lipid content, but less than 10% DH lines observed on ratio of length to width and grain thickness were transgressive segregation. Correlation analysis between appearance qualities and physicochemical characters indicated that grain width and grain thickness both significantly and negatively correlated to protein and lipid content. A highly significant negative correlation between protein content and amylose content was observed.
Mass Screening Method for Rice Virus Resistance Using Screen House
Kwak, Do-Yeon ; Yeo, Un-Sang ; Lee, Jong-Hee ; Oh, Byeong-Geun ; Shin, Mun-Sik ; Ku, Yeon-Chung ;
KOREAN JOURNAL OF CROP SCIENCE, volume 52, issue 2, 2007, Pages 129~133
To breed virus resistant rice variety, developing an efficient screening method is the most important. Two screening methods such as field screening and tray screening method have been used, but the efficiency of the field screening method is too low because of environment factors and the that of the tray screening method is good but screening capability is limited with only
lines per year. To overcome those problems, mass screening method using screen house was developed. Barely as host plant of vector insect was grown in screen house in winter season. Then viruliferous insects are spread in the first spring of the initiation year and sustain them annually. Screening of virus resistance was tested two times in a year, the first screening was from April to June and the second from July to September. The virus infected rate of each susceptible varieties was increased to 92% for RSV and 100% for RDV from the second year. Also, this method can evaluate as many as
pedigree lines in one time compared with the tray screening method. The result indicates that the mass screening method using screen house, which combines the advantages of the field and tray screening methods, is proven to be more efficient and reliable.
Variety and Seedling Age Affects Fine Rice Yield
Amin, A.K.M. Khusrul ; Haque, M. Aminul ; Akhtaruzzaman, Md ; Chowdhury, Nazmun Nahar ;
KOREAN JOURNAL OF CROP SCIENCE, volume 52, issue 2, 2007, Pages 134~139
The research was conducted with the aim of determining effects of seedling age on the yield of four fine rice varieties viz., Kalizura, Tulshimala, BRRI (Bang-ladesh Rice Research Institute)-37 and BRRI-38. The seedling of different ages such as 15, 25, 35 and 45 days were transplanted on the same day maintaining
spacing. The experiment was laid out in a randomized complete block design with three replications. The yield and yield contributing characters were influenced by seedling age, variety and their interaction. BRRI-38 gave the highest number of effective tillers
, panicle length, total spikelets
, 1000-grains weight and grain yield. Likewise, yield and yield contributing characters were the highest in 35 days old seedling. On the other hand, the variety (BRRI-38) with the same age as of seedlings 35 days old seedlings was found superior to other interactions, but, in the production of grains
and 1000-grains weight there was no significant effect in this interaction. From the findings it may be inferred that BRRI-38 with 35 days old seedlings produced the highest grain yield.
Screening of Resistant Genetic Resources to Stink Bug in Soybean
Oh, Sea-Kwan ; Baek, In-Yeol ; Hwang, Pil-Seong ; Kang, Sung-Tag ; Suh, Deug-Yong ; Park, Geum-Yong ;
KOREAN JOURNAL OF CROP SCIENCE, volume 52, issue 2, 2007, Pages 140~145
This study was carried out to develop effective test method by soybean stink bug and to screen resistant genetic resources against soybean stink bug. The damage pod rate by stink bug showed 40% of most soybean varieties and was selected about 10% low of 10 varieties by 298 variety and degree in soybean at first year Stink bug damage rate research for 102 varieties that stink bug damage rate lowed at first year showed 10% low of 12 varieties and from 20% to 30% of the other varieties. So testing material is "Ilpumgeumjeongkong" to develop for effective test method soybean stink bug and result for stink bug damage rate research of according to growth stage showed rapidly high more full seed than full pod. Full seed stage (R6) was highest to 35.5% for stink bug damage rate. Result of resistant genetic resources selection according to stink bug damage pod rate was lowed of best to 10.3% for "Peking, Sorogkong, Hwangsaegjunjeari and Sobaeknamulkong" in the order. Also, stink bug damage seed rate was similar too. So "Peking, Sorogkong, Hwangsaegjunjeari and Sobaeknamulkong" were thought resistant variety against stink bug. Additional study carried out with "Peking and Sorogkong" so that concretely investigate about stink bug's refuse reaction. This result showed 10.0% for Peking and 14.2% for Sorogkong at R6 stage. But, damage pod rate was rapidly lowed.
Study on the Single Oral Dose Toxicity of High Quality Rice Varieties
Shin, Jin-Chul ; Choi, Sung-Sook ; Han, Hye-Kyoung ; Chung, Ha-Sook ;
KOREAN JOURNAL OF CROP SCIENCE, volume 52, issue 2, 2007, Pages 146~152
The present study was carried out to investigate the potential acute toxicity of ethanol extracts of the aleurone layer of Oryza sativa cvs. Obongbyeo, Ilpumbyeo, and Aranghyangchalbyeo by a single oral dose in ICR mice. The test article was orally administered once by gavage to male and female mice at dose levels of 0, 2.5, 5.0, and 10.0 g/kg body weight (n=10 for male and female mice for each dose). We examined numbers of deaths, general signs, weight measurement and biochemical analysis for sexes and doses of mice control and experimental groups. All mice were alive during the experimental period so can not yield death rate and
. Any significant clinical symptom was not observed in all treated groups. No significant body weight changes in treatment groups in comparison with those of control groups was observed at any dose levels in experimental groups. Plasma glucose levels were valued both control and treated groups and there were no significant differences between groups. The activities of ALT and AST were not increase in all sample treated groups when compared with the control groups. The results suggest that the toxicity of Oryza sativa cvs. Obongbyeo, Ilpumbyeo, and Aranghyangchalbyeo are low and its
is over 10.0 g/kg body weight in both male and female mice.
Impact of Sulphur and Nitrogen Application on Seed and Xanthotoxin Yield in Ammi majus L.
Ahmad, Saif ; Jamal, Arshad ; Fazili, Inayat Saleem ; Alam, Tanweer ; Khan, Mather Ali ; Kamaluddin, Kamaluddin ; Iqbal, Mohd ; Abdin, Malik Zainul ;
KOREAN JOURNAL OF CROP SCIENCE, volume 52, issue 2, 2007, Pages 153~161
Field experiments were conducted to determine the physiological and biochemical basis of the interactive effect of sulphur (S) and nitrogen (N) application on seed and xanthotoxin yield of Ammi majus L. Six treatments were tested (
= control-without manure and fertilizers,
= manure @ 9 kg
). Nitrate reductase (NR) activity and ATP-sulphurylase activity in the leaves were measured at various phonological stages, as the two enzymes catalyze rate-limiting steps of the assimilatory pathways of nitrate and sulphate, respectively. The activities of these two enzymes were strongly correlated with seed and xanthotoxin yield. The highest nitrate reductase activity, ATP-sulphurylase activity and xanthotoxin yield were achieved with the treatment
. Any variation from this treatment decreased the activity of these enzymes, resulting in a reduction of the seed and xanthotoxin yield in Ammi majus L. The higher seed and xanthotoxin yield achieved in Ammi majus L. at treatment
could be due to optimization of leaf soluble protein and photosynthetic rate, as these parameters are Influenced by S and N assimilation.
Variation of Disease Severity by Mixed Inoculation of Compatible and Incompatible Races of Bacterial Blight in Rice
Kim, Bo-Ra ; Lee, Eun-Jeong ; Choi, Jae-Eul ;
KOREAN JOURNAL OF CROP SCIENCE, volume 52, issue 2, 2007, Pages 162~168
Compatible and incompatible interactions of near-isogenic lines containing one of Xa1, Xa3, and Xa7 resistance genes with Japanese bacterial blight isolates (T7174, T7147, and T7133) were examined in order to determine the variation of bacterial blight resistance and the stability of resistance gene. IRBB 101 line having a Xal gene was compatible (host susceptible) with T7147 and T7133 isolates but incompatible (host resistant) with T7174 isolate at all the tested rice growth stages. IRBB 103 line having a Xa3 gene was susceptible or moderately resistant to the three isolates at seedling and maximum tillering stage but resistant at heading stage. IRBB 101 line having a Xa7 gene was semi-compatible with the three isolates at seedling stage but incompatible at the other growth stages. Overall there were clear differences between compatible and incompatible interactions of rice with Xanthomonas oryzae pv. oryzae races. In the mixed inoculations of compatible and incompatible isolates, the lesion length from near-isogenic lines decreased as the ratios of incompatible races increased. When the distinction between compatible and incompatible isolates was unclear, there was almost no variation of lesion length regardless of mixed ratios. The pathogenicity of the mixed races in the incompatible Interactions increased rather than the individual inoculation whereas the lesion length of compatible interactions was similar to that of the individual inoculation. These data indicate the incompatible races inhibit the virulence of a compatible race but compatible races increase the disease occurrence due to incompatible races. Furthermore, IRBB 107 line that showed resistance to all the isolates at all the tested growth stages was considered as a good parent f3r breeding of resistant variety.
Comparison of Weed Occurrence and Growth of Some Leguminous Plants for Green Manure Cover Crop During Summer Fallow
Lee, Kwang-Hoe ;
KOREAN JOURNAL OF CROP SCIENCE, volume 52, issue 2, 2007, Pages 169~175
This experiment was carried out to compare weed occurrence and to evaluate the field performance of some leguminous plant species under no-weeding fallow condition during summer months from middle of June to middle of August. In 2005 and 2006, the first dominant weed species was Digitaria sanguinalis, and other major weed species, such as Cyperus amuricus, Portulaca oleracea, and Amaranthus retroflexus, were similar among treatments. In both years, total shoot dry weight of weeds was the highest In the control plot, and the lowest in the cowpea plot, indicating that cowpea most effectively suppressed the growth of weeds among treatments. When the growth of four different leguminous species were compared after seeding during middle of June in 2006, cowpea and rice bean grew vigorously under no-weeding condition during hot and humid summer months, while wild soybean and hairy vetch did not. Shoot dry weight was in the order of cowpea > rice bean > wild soybean > hairy vetch. In conclusion, cowpea is a leguminous species which can be used as a green manure cover crop during summer months under no-weeding and our climate condition. Further works are needed to use cowpea as a green cover crop during summer months for various cropping systems.
Effects of Mixed-seeding Date on Growth of Hairy Vetch (Vicia viilosa) and Radish, and on Weed Occurrence
Lee, Kwang-Hoe ;
KOREAN JOURNAL OF CROP SCIENCE, volume 52, issue 2, 2007, Pages 176~182
Under the conditions of the least inputs such as no-chemical fertilizer, no-chemical insecticide, and no-weeding, this experiment was carried out to examine the effect of mixed-seeding date on growth of hairy vetch and radish, and on the status of weed occurrence. Radish was severely damaged by insects during the whole growth period. Many summer annual weeds emerged and grew vigorously when the seeding date was August 14, but rarely emerged when the seeding date was August 28. Most growth parameters of hairy vetch and radish were higher when the seeding date was August 14, compared to those of the seeding dates of August 21 and August 28. For the mixed seeding of hairy vetch and radish under the conditions of the least inputs, the seeding date during the middle of August could be recommended.
Comparative Efficacy of Some Selected Plant Derived Biopesticides for the Control of Insect Pests of Cowpea (Vigna unguiculata (L.) Walp.) in Katsina State, Nigeria
Ahmed, B.I. ; Onu, I. ; Mudi, L. ; Aliyu, M. ;
KOREAN JOURNAL OF CROP SCIENCE, volume 52, issue 2, 2007, Pages 183~197
Field trial was conducted at the Research Farm of the Katsina State Agricultural and Rural Development Authority during the farming season of 2004 with a view to evaluate/determine the efficacy of some selected plant-derived biopesticides against the insect pests of cowpea as well as their effect on yield. The variety of the cowpea used was IT86D-719 and the plant derived biopesticides evaluated during the trial were chilli pepper, garlic, ginger, neem, sweetsop and tobacco. The experimental field was ploughed, harrowed and thereafter ridged before the commencement of the 2004 planting season. A total of twenty one (21) experimental plots were demarcated and arranged into seven treatment plots. The size of each plot was
while interspaces between adjacent plot and blocks were 1m and 2m, respectively. Results of the experiments showed that all the plant-derived biopesticide treatments were significantly (p>0.05) better than control treatment. The order of effectiveness of the treatments was tobacco (80-90%), sweetsop (75-85%), garlic (70-80), neem (72-78%), chilli pepper (60-70%) and ginger (30-50%). Furthermore, yield result corresponded positively with the effectiveness of the treatments. Results of the present finding suggest the use of tobacco, sweetsop and garlic as promising biopesticides in the control of cowpea insect pests.
Genetic Analysis of Shattering Habit and Some Quantitative Characters in Sesame
Kim, Dong-Hwi ; Kang, Chul-Whan ; Shim, Kang-Bo ; Park, Chang-Hwan ; Lee, Sung-Woo ;
KOREAN JOURNAL OF CROP SCIENCE, volume 52, issue 2, 2007, Pages 198~203
This study was carried out to obtain basic informations for gene action of quantitative characters including shattering resistance. The parental varieties used for
half diallel crosses were 'Yangbaek' and 'Ansan' of normal type, 'Suwon177' and 'Suwon195' of placenta adhesion type (PA) and 'SIG960320-5-1-1' of indehiscent type (ID). PA and ID type are shattering-resistant sesames, and Yangbaek and Ansan are shattering sesames. All the characters were sufficient to the assumption for diallel analysis in this experiment. Over dominance was exhibited by the number of capsules per plant, while partial dominance by plant height, capsule setting stem length, grain yield per plant and shattering rate, complete dominance by the number of branches per plant. Additive effect was higher than dominance in shattering rate. High shattering rate was dominant over low shattering rate. Suwon 195, shattering resistant sesame, showed to have the many recessive genes which reduced the shattering rate of sesame seed. Broad sense heritability for all the characters was more than 0.8. Narrow sense heritability for the number of branches per plant, the number of capsules per plant, grain yield per plant and shattering rate was 0.45 to 0.63, and plant height and capsule setting stem length was more than 0.8.
Optimum Water Management Practices for Direct Seeding on Paddy Surface of Saline in Soils in Reclaimed Tidelands
Back, Nam-Hyun ; Ko, Jong-Cheol ; Nam, Jeong-Kwon ; Kim, Bo-Kyeong ; Park, Hong-Kyu ; Kim, Sang-Su ; Kim, Chung-Kon ;
KOREAN JOURNAL OF CROP SCIENCE, volume 52, issue 2, 2007, Pages 204~207
This study was conducted to suggest proper water management practices after and before broadcasting of rice seed on flooded paddy surface at reclaimed saline soil with two different saline levels in Gyehwado Substation of Honam Agricultural Research Institute (HARI) NICS, RDA for two years from 2004 to 2005. The stable seedling stand in low saline soil of 0.1% salinity was obtained by one time of water exchange after soil rotary Whereas in medium saline soilof 0.3% salinity, three times of water exchange was required for the stable seedling stand. Milled rice yield was not affected by frequency of water exchange in low saline soil, while it decreased sharply in one and two times of water exchange compared with three times of water exchange in medium saline soil. Irrigation water immediately after direct seeding increased the number of seeding stand in low saline soil. With the increase in the interval of water exchange after direct seeding, the milled rice yield decreased. Although the continuous water flowing showed the most number of seedling stand and was increased milled rice yield compared with the others interval of water exchange in medium saline soil, the number of seedling stand and milled rice wasn't significantly different up to exchange of two days interval compared with the continuous water flowing.
Critical Date of Wet Direct Seeding of Rice after Barley Cropping at Honam Plain Area
Back, Nam-Hyun ; Choi, Min-Kyu ; Park, Hong-Kyu ; Nam, Jeong-Kwon ; Ko, Jong-Cheol ; Kim, Sang-Su ; Kim, Bo-Kyeong ; Kim, Chung-Kon ;
KOREAN JOURNAL OF CROP SCIENCE, volume 52, issue 2, 2007, Pages 208~212
This experiment was carried out to investigate critical date for wet direct seeding of rice after barley harvest in Honam plain areas. Three early maturing cultivars of Samchonbyeo, Sangjubyeo and Obongbyeo and two medium maturing cultivars of Geumobyeo 1 and Juanbyo were tested under four different seeding dates. Seedling stand was higher with earlier seeding date with the range from 68 to 81% then later seeding date. Field lodging occured severely in Samchonbyeo, Sangjubyeo and Geumobyeo 1, while it was not apparent in Obongbyeo and Juanbyo. In consideration of threshold heading date, critical seeding date was June 20 in Samchonbyeo, Sangjubyeo and Obongbyeo of early maturing cultivars, and June 15 in Geumobyeo 1 and Juanbyo of medium maturing cultivars. Milled rice yield significantly decreased in seeding date of June 15 or late. These results implied that critical date of seeding for wet direct seeding after barley cropping in Honam plain area was June 10.
Aluminum-induced Root Growth Inhibition and Impaired Plasma Membrane
in Mung Bean
Ahn, Sung-Ju ; Kim, Yu-Sun ; Park, Won ; Ku, Yang-Gyu ; Min, Kyung-Soo ; Whang, Tei-Ik ;
KOREAN JOURNAL OF CROP SCIENCE, volume 52, issue 2, 2007, Pages 213~219
It has been well established that aluminum (Al) inhibits root tip growth rapidly in acid soil. We report the correlation between Al induced growth inhibition and impaired
in mung bean (Vigna radiate L. cv. Kumsung). The root growth inhibition was dependent on Al concentration (0, 10, 25, 50,
) and exposure time (12 and 24 h). Using Hematoxylin staining, it was observed that the root damage was occurred preferentially in regions with high Al accumulation. Using the pH indicator, it was shown that the surface pH of root tip was strongly alkalized in the control whereas changed only slightly in the
Al-treated root. The
activity of plasma membrane vesicles was inhibited by 56% in the Al-treated roots compared to control root. Decrease in the amount of the plasma membrane
(100 kDa) translation in the plant roots under Al stress was demonstrated by Western blot analysis. These results indicate that the dynamics of
across the root tip play an important role in root growth under Al stress.
Establishment of Mass Propagation System of Virus-Free Sweetpotato Plants and Conservation
Lee, Joon-Seol ; Chung, Mi-Nam ; Jeong, Byeong-Choon ; Ahn, Young-Sup ; Kim, Hag-Sin ; Park, Jong-Suk ; Bang, Jin-Ki ;
KOREAN JOURNAL OF CROP SCIENCE, volume 52, issue 2, 2007, Pages 220~227
Sweetpotato fields in Korea are highly infected with virus and virus like diseases that greatly diminish both yield and quality as indicated by field observations and laboratory tests. In order to solve this problem, there is an urgent need to produce and mass propagate virus-free planting materials for distribution to the farmers. These experiments were conducted, firstly, to determine the most appropriate culture media, nutrient solution, and cutting intervals to maintain growth and vigor of tissue cultured plantleta as mother plants for propagation in insect-proof greenhouse. And as a labor saving method, the production efficiency of plug trays for rapid propagation of stem cuttings as a source of planting materials was likewise evaluated. Results showed that plants grown in medium B supplied with 0.5 and 1.0 strength of MS nutrients had high growth rate, and 20-day cutting interval was the best. 72-plug tray was better than 128-plug. Secondly, it was to develop a technique for the production of first-generation seed roots using hydroponics cultivation system. The yield of virus-free plants propagated in the non-insect proof and open-field cultivation was 2,402 kg/10a, 6% higher than those in the insect-proof cultivation, and the rate of virus re-infection was 18% higher compared to 3.3% with insect-proof cultivation. Lastly, it was to investigate the growth performance of virus free plants in farmers' field. Differences were existed in the yield depending on the variety used, but virus free plants showed an increase of
over virus infected plants.
Antioxidative and Biological Activites of Extracts of Sweetpotato Tips
Lee, Joon-Seol ; Park, Yang-Kyun ; Ahn, Young-Sup ; Kim, Hag-Sin ; Chung, Mi-Nam ; Jeong, Byeong-Choon ; Bang, Jin-Ki ;
KOREAN JOURNAL OF CROP SCIENCE, volume 52, issue 2, 2007, Pages 228~238
This study was conducted to increase sweetpotato utilization and to determine the vegetative value of sweetpotato tips by investigating the phenolic compounds, antioxidative effect in oil, electron donating ability, nitrite scavenging effect and ACE inhibition activities. The phenolic compounds present in sweetpotato tips are the gallic, chlorogenic, gentisic, caffeic, couramic and ferulic acid, which are 16-122 times higher compared to other vegetables such as spinach, soybean sprout, and perilla leaves. In each solvent extract, the total phenolic compounds (175.8mg/g) was composed of 55% EtOAc extraction and 39% BuOH extract, respectively. The results of induction period using the Rancimat method showed that the antioxidant activity of SP tips was higher than the tocopherol or BHT. The relative levels of each solvent extract in SP tips were as follows: EtOAc>BHT>BuOH>Tocopherol>Water>
>Hexane. The peroxide value was measured every 5 days for 25 days during storage and results showed that the peroxide value, the tips, tuberous root and tocopherol were lower compared to spinach, soybean sprout and perilla leaves. Nitrite scavenging effects were excellent in sweetpotato tips, perilla leaves and soybean sprout, especially, inhibition rate of perilla leaves (72%) were superior to the others. In process of solvent extraction, activity of BuOH and water extractions were the best. ACE inhibition activity in sweetpotato tips was 1.5 times higher than in tuberous roots and
times higher than in spinach, soybean sprout, perilla leaves.