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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
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KOREAN JOURNAL OF CROP SCIENCE
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Journal DOI :
The Korean Society of Crop Science
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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
Morphological and Photosynthetic Responses of Rice to Low Radiation
Yang, Woon-Ho ; Peng, Shaobing ; Dionisio-Sese Maribel L. ;
KOREAN JOURNAL OF CROP SCIENCE, volume 52, issue 1, 2007, Pages 1~11
Light is an environmental component inevitably regulating photosynthesis and photo-morphogenesis, which are involved in the plant growth and development. Studies were conducted at the International Rice Research Institute, Philippines in 2004 and 2005, with aims to investigate 1) morphological responses of rice plants to low radiation, 2) morphological alteration of shade-grown plants when exposed to high light intensity, and 3) photosynthetic responses of shade-grown rice plants. Reduction in solar radiation by 40% induced increases in the area on a single leaf basis, biomass partitioning to leaves, and chlorophyll meter readings but brought about retardation of tiller development and decrease in above-ground biomass production of rice varieties. When the shade-grown plants from two weeks of transplanting to panicle initiation were exposed to full solar radiation after panicle initiation, they demonstrated less increase in chlorophyll meter readings and more decrease in leaf nitrogen concentrations from panicle initiation to flowering than control plants that were grown under the ambient solar radiation for whole growth period after transplanting. Shade-grown rice plants exhibited lower carbon assimilation rates but higher internal
concentrations on a single leaf basis than control plants, when measurements for shade-grown rice plants were made under the shading treatments. But when the measurements for shade-grown plants were made under the full solar radiation, light-saturated carbon assimilation rates were similar to control plants. Response of photosynthetic rates to varying light intensities was not considerably different between shading treatments and control. Yield reduction was observed in the shading treatments from panicle initiation to flowering and from flowering to physiological maturity, mainly by less spikelets per panicle and poor grain filling, respectively.
Identification of Microsatellite Markers Linked to Photoperiod Insensitive Gene Ppd-D1a in Wheat
Heo, Hwa-Young ; Talbert, Luther ; Blake, Nancy ; Sherman, Jamie ; Suh, Sae-Jung ; Kim, Dea-Wook ; Kim, Si-Ju ;
KOREAN JOURNAL OF CROP SCIENCE, volume 52, issue 1, 2007, Pages 12~16
To facilitate breeding of lines with either the Ppd-D1a or ppd-d1a, we screened 342
progenies from a cross between Laura (photoperiod insensitive, Ppd-D1a) spring wheat and SWP5304 (photoperiod sensitive, ppd-d1a) for their time to heading under 10 hour day length, and with a set of 37 microsatellite primers previously mapped to chromosome 2D. Bulk segregant analysis was used to identify tow linked microsatellite loci. The Ppd-D1a locus was flanked by Xgwm484 with 13.7 cM distance and Xgwm455 with 27 cM. These markers may be useful in selection of the desired photoperiod sensitivity in segregating populations grown in Northern latitude.
Spring Freezing Injuries and Their Effects on Yield of Barley (Hordeum vulgare L.) and Wheat (Triticum aestivum L.)
Koo, Bon-Cheol ; Park, Moon-Woong ; Kim, Ki-Jun ; An, Jong-Guk ;
KOREAN JOURNAL OF CROP SCIENCE, volume 52, issue 1, 2007, Pages 17~28
To understand the spring freezing injury symptoms during sensitive growth stage and yield loss of barley and wheat, field tests were done by using vinyl mulching and natural cold weather. The growth stage sensitive were booting, spikelet differentiation and flower organ development stages for both crops. However, barley and wheat differed in their growth responses, in that barley was less affected than wheat. For instance, barley recorded 28 percent dead ears, 10 percent dead plants and 18 percent ear degenerations while wheat recorded higher values of 59 percent, 44 percent and 44 percent, respectively. Although there were no recorded froze-resistant varieties in both barley and wheat, some showed tolerance as their yields were not affected by freezing stress. The 'Chalbori' cultivars of barley and 'Geurumil' and 'Chokwang' cultivars of wheat recorded steady yields. The yield components of barley and wheat that were greatly affected by freezing stress were the number of spike per square and the number of grain per spike. The major cause of yield loss in Suwon 259 and Kangbori was the number of spike per square but not the number of grain per spike. The study showed, however, that both the number of spike per square and the number of grain per spike were vulnerable to freezing and that which contribute much to yield loss of barley and wheat.
Varietal Difference of Germination, Fat acidity, and Lipoxygenase Activity of Rice Grain Stored at High Temperature
Kim, Ki-Young ; Lee, Gun-Mi ; Noh, Kwang-Il ; Ha, Ki-Yong ; Son, Ji-Young ; Kim, Bo-Kyeong ; Ko, Jae-Kwon ; Kim, Chung-Kon ;
KOREAN JOURNAL OF CROP SCIENCE, volume 52, issue 1, 2007, Pages 29~35
This study was conducted to investigate the germination rate, fat acidity and lipoxygenase activity of brown rice after storage of 6 and 12 weeks at high temperature (
) with fifteen Korean and two Japanese rice varieties. Germination rate in rough rice and palatability value in cooked rice by rice taster were lower with longer storage period, while protein content, fat acidity, and lipoxygenase activity in brown rice were higher with longer storage period. Fat acidify was negatively correlated with germination rate. However fat acidity was positively correlated with lipoxygenase activity. Seventeen varieties were classified into two groups on the basis of germination rate, fat acidity and lipoxygenase activity after 12 weeks' storage at high temperature; Group I including eleven varieties of Odaebyeo, Sangmibyeo, Unkwangbyeo, Ilpumbyeo, Nampyeongbyeo, Ilmibyeo, Donganbyeo, Jungsanbyeo, Koshihikari, Hitomebore and Chucheongbyeo showed high germination rate, low fat acidity and low lipoxygenase activity, while Group II including six varieties of Sindongjinbyeo, Hoanbyeo, Gyehwabyeo, Daeyabyeo, Hopyeongbyeo, and Dongin 1 showed lower germination rate, high fat acidity and high lipoxygenase activity.
Changes in Physicochemical Characteristics of Green Barley according to Days after Heading
Ju, Jung-Il ; Lee, Ka-Soon ; Min, Hee-Il ; Lee, Byung-Jin ; Kwon, Byung-Gu ; Gu, Ja-Hyeong ; Oh, Man-Jin ;
KOREAN JOURNAL OF CROP SCIENCE, volume 52, issue 1, 2007, Pages 36~44
In order to evaluate the utilization of immature green barley kernels as food processing material, these experiments were carried out to analyze free sugars, free amino acids, mineral contents and color of two naked barley varieties according to their heading dates. Contents such as moisture, protein, fat, ash, and free sugars were gradually decreased according to the days after heading of the nonwaxy naked barley 'Saessalbori' and waxy naked barley 'Hinchalssalbori', while crude fiber and starch were gradually increased. Contents like maltose and maltotriose in immature green kernels were high, but free amino acids showed a tendency to decrease, among which the alanine content was the highest. As barley matured, beta-glucan content, redness and yellowness increased, while lightness decreased. Considering chemical composition and color, the immature green cereals were produced through blanching the spikes harvested before the yellow ripe stage around
days after heading. The optimum duration of harvest was very limited to produce green whole grains. The harvested green barley cereals is able to eat raw barley or cook it as food processing material.
Physicochemical Properties of Rice Kernels Affected on Palatability
Yoon, Mi-Ra ; Kim, Chae-Eun ; Koh, Hee-Jong ; Kang, Mi-Young ;
KOREAN JOURNAL OF CROP SCIENCE, volume 52, issue 1, 2007, Pages 45~50
This study was investigated the relationship between palatability and physicochemical properties of rice kernels from two rice cultivars, including Gopumbyeo and Palgongbyeo. Major fatty acids of rice were oleic(35% in Gopum, 33.2% in Palgong, respectively) and linoleic acids (42.9% in Gopumbyeo, 40.7% in Palgongbyeo, respectively). There were significant differences in composition of amino acids and content of sugar from non-starch polysaccharide between two rice cultivars. However, no difference was found in mineral contents between Gopumbyeo and Palgongbyeo. In Rapid Visco Analyzer examination, pasting temperature and breakdown of Gopumbyeo were lower than those of Plagongbyeo. In X-ray diffraction patterns of starches separated from two rice cultivars, traditional A type and there was no difference in crystalline of rice starch. We could also obtain the results that Goupumbyeo, known to have good eating quality, had higher palatability value than Palgongbyeo.
SSR Marker Linked to f Locus in Soybean
Nam, Ki-Chul ; Kim, Myung-Sik ; Jeong, Woo-Hyeun ; Kim, Seok-Hyeon ; Chung, Jong-Il ;
KOREAN JOURNAL OF CROP SCIENCE, volume 52, issue 1, 2007, Pages 51~54
Soybean has a morphological type with a broadened and flattened stem. Fasciation has been suggested as a new gene for soybean research. SSR marker linked to the
locus that controls fasciation phenotype has not identified within 10 cM. A mapping population consisting of 94
progenies was derived from a cross between wild type Clark (FF) and fasciation mutant C32 (
). The phenotype of
individual plants was recorded at R2 and R3 growth stage from field. One-thousand 10-mer oligonucleotide RAPD primers and 29 SSR primers selected from the D1b+W of the soybean molecular linkage map were used. A genetic map was constructed from the segregating 35 RAPD, four SSR markers and one phenotypic(wild type/fasciation) marker. The segregation ratios of 3 : 1 observed in the
population and the Chi-square values strongly suggest that the fasciation trait is controlled by a single recessive gene. Satt537 marker was linked to
locus at a distance of 9.6 cM. Assignment of the
locus to linkage group D1b+W and identification of markers can be used as an initial step for fine mapping of the
Effects of Plant Types and Cultivars on Pod Yield in Late Seeding Peanut
Pae, Suk-Bok ; Kim, Jung-Tae ; Shim, Kang-Bo ; Hwang, Chung-Dong ; Chung, Chan-Sik ; Lee, Myung-Hee ; Park, Keum-Yong ;
KOREAN JOURNAL OF CROP SCIENCE, volume 52, issue 1, 2007, Pages 55~59
This experiments were conducted to evaluate suitable plant-type and cultivars for producing fresh pod peanut from late seeding as succeeding crop, compared with early seeding as proceeding crop or single cropping. 12 cultivars according to grain weight and plant types, 6 virginia typed cultivars(ssp. hypogaea) and 6 shinpung typed cultivars(ssp. fastigiata), were used for early and late seedings. The plant growth and yield potential in early seeding were better than those in late seeding. But the ratios of dry/fresh pod and of mature pod in late seeding were higher than those of early seeding. The yield of fresh pod by cultivars in two seeding times showed significant correlation with pod scale such as fresh pod weight, 100-grain weight, and dry seed yield positively, but pod number negatively in early seeding only. Yield of fresh peanut between Virginia and Shinpung types didn't show significant difference in early seeding, but showed in late seeding. Average yield of Virginia typed cultivars showed significantly higher than that of Shinpung typed ones. This yield gap between two plant types was the same tendency on extending seedings to July 20.
Cooking Properties of Rice with Pigmented Rice Bran Extract
Kim, Joo-Hee ; Nam, Seok-Hyun ; Kim, Mi-Hyun ; Sohn, Jae-Keun ; Kang, Mi-Young ;
KOREAN JOURNAL OF CROP SCIENCE, volume 52, issue 1, 2007, Pages 60~68
This study was perform to examine the feasibility of cooking processing using the rice added the 70% ethanol extract of pigmented rice bran layer. Four rice samples, including normal rice, glutinous rice, pigmented-normal rice, and pigmented-glutinous rice were compared the properties of physico-chemical, texture, and sensory evaluation. Pigmented rice varieties had a higher amylose content, but shorter length in glucose chains than non-pigmented rice varieties. The enthalpy for gelatinization was found to increase in pigmented rice, which need more energy for gelatinization of starch in cooking. The hydrolysis rate by glucoamylase in rice added pigmented bran extract was higher than pigmented rice. Rice with pigmented bran extract had higher glutamine content, but lower asparagine content and no difference in fatty acid composition, which affect palatability. Cooked rice added pigmented bran extract was less retrograded than pigmented rice during the storage period. Moreover, cooked rice added pigmented bran extract was more acceptable in sensory evaluation. Based on the results, the use of rice added pigmented bran extract instead of pigmented rice in grain processed food have advantageous effects in palatability of polished rice and phytochemicals of pigmented non-polished rice. This study will help develop new health-promoting rice products.
Proteomic Analysis and Growth Responses of Rice with Different Levels of Titanium Dioxide and UV-B
Hong, Seung-Chang ; Shin, Pyung-Gyun ; Chang, An-Cheol ; Lee, Ki-Sang ; Lee, Chul-Won ; Woo, Sun-Hee ;
KOREAN JOURNAL OF CROP SCIENCE, volume 52, issue 1, 2007, Pages 69~80
Among the photoactive semiconductors such as
is the most widely used as photocatalyst in different media, because of its lack of toxicity and stability. In this study, the effects of titanium dioxide were investigated to obtain the information of physiological change in rice plant. Light-adapted Chlorophyll flourescence index decreased and relative electron transport rate of rice leaves was activated by titanium dioxide under
PAR (Photosynthetic active radiation). Relative electron transport rate of rice leaf treated with titanium dioxide 10 ppm was high in order of
and titanium dioxide 10 ppm (45.1%), control (32.4%), diuron 10 ppm (15.3%) under
. Titanium dioxide increased photosynthesis of the rice leaf under
UV-B only. With titanium dioxide 20 ppm, reduced UV-B (
) intensity changed the induction of proteins and twenty-five proteins were identified. Among them, seventy proteins were up-regulated, four proteins were down-regulated and four proteins were newly synthesized. Function of these proteins was related to photosynthesis (52%), carbohydrate metabolism (4%), stress/defense (8%), secondary metabolism (4%), energy/electron transport (4%), and miscellaneous (28%).
SSR Profiling and Its Variation in Soybean Germplasm
Yoon, Mun-Sup ; Lee, Jeong-Ran ; Baek, Hyung-Jin ; Cho, Gyu-Taek ; Kim, Chang-Yung ; Cho, Yang-Hee ; Kim, Tae-San ; Cho, Eun-Gi ;
KOREAN JOURNAL OF CROP SCIENCE, volume 52, issue 1, 2007, Pages 81~88
The evaluation of soybean germplasm has mainly been carried out by morphological characters at Genetic Resources Division, Rural Development Administration (RDA). However, this information has been limited serving a diverse information for user and effectively managing the soybean germplasm. To resolve this problem, soybean collection conserved at RDA gene bank was profiled using nine soybean SSR (Simple Sequence Repeat) markers. Soybean SSR allele was confirmed using genescan and genotyper softwares of automatic sequencer for accurate genotyping of each accession and continuous accumulation of data. SSR profiling of soybean germplasm has been carried out from 2,855 (Satt458) to 4,368 (Satt197) accessions by locus. The number of allele revealed 267 with an average of 29.6 in total accession, and varied from a low of 21 (Satt532 and Satt141) to a high of 58 (Sat_074). Although the number of accessions of wild soybean is less than that of soybean landraces, Korean wild soybean is more variable than other soybean landraces populations in total number of alleles. However, Korean soybean landraces were more variable than Korean wild soybeans in 5 loci. In the allele frequency, wild soybean accessions showed an even distribution in all alleles and higher distribution in low ladder than in high ladder. Also, Korean soybean landraces revealed a high condensed frequency in Satt286 (202 bp, 232 bp), Chinese soybean landraces in Satt197 (171 bp) and Satt458 (173 bp), and Japanese soybean landraces in Sat_074 (244 bp) and Satt458 (170 bp). These SSR profile information will be provided as indications of redundancies or omissions of accessions and can aid in managing soybean collection held at RDA gene bank. The information on diversity analysis could help to enlarge the genetic diversity of materials in breeding program, and could be used to develop a core collection of soybean germplasm.
Reaction of Near-Isogenic Lines with Resistance to Bacterial Blight to Korean and Japanese isolates of Xanthomonas oryzae pv. oryzae
Kim, Bo-Ra ; Yang, Cheol-Woo ; Jin, Xuan-Ji ; Han, Jin-Soo ; Lee, Eun-Jeong ; Choi, Jae-Eul ;
KOREAN JOURNAL OF CROP SCIENCE, volume 52, issue 1, 2007, Pages 89~99
To develop durable and stable breeding strategies far the control of rice bacterial blight (BB) disease, the near-isogenic lines (NILs) with diverse resistance genes to BB isolates were evaluated in plant at three different growth stages using four Korean (
) and three Japanese isolates (I, II, III). The resistance of the NILs to seven BB isolates tended to increase with plant aging. At the seedling stage, the NILs with single resistance genes were mostly resistant to
race but they showed partial or no resistance to other isolates. A NILs (IRBB5) possessing xa5 had full resistance to the four Korean isolates, illustrating that it is a useful source to give enhancement to Korean breeding program. At the maximum tillering stage, resistance of NILs to
, I and II isolates considerably increased while resistance to
and III were similar to those of seedling stage. NILs with resistance gene of Xa4, xa5 and Xa7 proved to be the most stable to BB isolates at the maximum tillering stage. At the heading stage, most resistance genes of NILs were effective against BB isolates, and xa5 showed the consistent resistance to all the BB isolates including
and III isolates, demonstrating that resistance genes of Xa4, xa5 and Xa7 can be used either alone or combined to enhance resistance to BB disease in Korea.
Effect of Vermicompost in Combination with Bacterial and Mineral Fertilizers on the Yield of Vegetable Soybean
Bajracharya, S.K. ; Shercahn, D.P. ; Bhattarai, S. ;
KOREAN JOURNAL OF CROP SCIENCE, volume 52, issue 1, 2007, Pages 100~103
A field experiment was conducted in Agronomy farm at an altitude of 1350 m. above sea level in a randomized complete block design with three replications and eight treatments on vegetable type soybean in 2005. The objective was to see the effect of vermicompost alone and in combination with Rhizobium inoculum and mineral fertilizers on the yield of vegetable soybean. The result showed higher number of nodules from the non inoculated plot, however, the nodules weight was highest from the inoculated plots. No significant difference was notice statistically on roots and shoots dry weight. Soybean grain was obtained highest (32.3%) over the non inoculated plot followed by vermicompost plus inoculated, however, there was non significant difference. There was a slight increment on grain and straw yield from the inoculated plots over the non inoculated.
Response of Grain Protein Content to Nitrogen Topdress Rate at Panicle Initiation Stage under Different Growth and Plant Nitrogen Status of Rice
Kim, Min-Ho ; Lee, Kyu-Jong ; Lee, Byun-Woo ;
KOREAN JOURNAL OF CROP SCIENCE, volume 52, issue 1, 2007, Pages 104~111
As protein content of milled rice, generally used as a benchmark for rice eating quality, is greatly affected by N fertilization and nutrition status of rice plant, understanding its response to nitrogen rate and plant nitrogen status at different growth stage is important for recommending N fertilizer management for high quality rice production. The responses of milled-rice protein content were compared and quantified under various combinations of basal+tillering and panicle N application levels in 2001 and 2002. Protein content of milled rice was ranged from 6 to 9%, increasing significantly with increasing basal+tillering and panicle N rates. However, milled rice protein content was raised much greater by panicle N than by basal+tillering N fertilization. Even though basal+tillering N increased up to 20 kg/ha, protein content of milled rice was observed less than 7% in case that panicle N was applied below 1.8 kg/10a. Regression analysis revealed that nitrogen accumulated until harvest was partitioned with almost constant rates of 58.3% and 46.5% to panicle and milled rice, respectively. The partitioning rates was slightly but not significantly different between experimental years. Protein content of milled rice showed linear and quadratic responses to the shoot N accumulation until panicle initiation stage (PIS) ant shoot nitrogen accumulation from PIS to harvest, respectively. The increment of milled-rice protein content per unit N increase was much greater in shoot N accumulation from PIS to harvest than in that until PIS. Regardless of shoot N accumulation until PIS upto 8 kg/10a, protein content of milled rice was lower than 7% and ranged from 6.5 to 7.5% in case that shoot N accumulation from PIS to harvest was below 3.0 kg/10a and below 6.0 kg/10a respectively. It would be concluded that even under the same N accumulation until harvest milled rice protein content could be different according to the N fertilizer management and weather condition especially during ripening, providing rooms for controlling protein content by N fertilizer management without damage to grain yield.
Association of Duration and Rate of Grain Filling with Grain Yield in Temperate Japonica Rice (Oryza sativa L.)
Yang, Woon-Ho ; Park, Tae-Shik ; Kwak, Kang-Su ; Choi, Kyung-Jin ; Oh, Min-Hyuk ;
KOREAN JOURNAL OF CROP SCIENCE, volume 52, issue 1, 2007, Pages 112~121
Grain filling is a crucial factor that determines grain yield in crops since it is the final process directly associated with crops' yield performance. Grain filling process can be characterized by the interaction of rate and duration of grain filling. This study was conducted, using 16 temperate japonica rice genotypes, with aims to (1) seek variations in grain filling duration and rate on area basis, (2) compare the contribution of grain filling duration and rate to grain yield, and (3) examine the influence of temperature and solar radiation for effective grain filling on grain yield in relation to grain filling duration and rate. Grain filling rate and duration exhibited highly significant variations in the ranges of
days, respectively, depending on rice genotypes. Grain yield on unit area basis was associated positively with grain filling duration but negatively with grain filling rate. Grain filling rate and duration were negatively correlated with each other. Final grain weight increased linearly with the rise in both cumulative mean temperature and cumulative solar radiation for effective grain filling. Higher cumulative mean temperature and cumulative solar radiation for effective grain filling were the results of longer grain filling duration, but not necessarily higher daily mean temperature and daily solar radiation for effective grain filling. Grain filling rate demonstrated an increasing tendency with the rise in daily mean temperature for effective grain filling but their relationship was not obviously clear. It was concluded that grain filling duration, which influenced cumulative mean temperature and cumulative solar radiation for effective grain filling, was the main factor that determined grain yield on unit area basis in temperate Japonica rice.