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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
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Journal of The Korean Society of Grassland and Forage Science
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Journal DOI :
The Korean Society of Grassland and Forage Science
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Volume & Issues
Volume 28, Issue 4 - Dec 2008
Volume 28, Issue 3 - Sep 2008
Volume 28, Issue 2 - Jun 2008
Volume 28, Issue 1 - Mar 2008
Selecting the target year
Callus Induction and Plant Regeneration from Mature Seeds of Timothy
Lee, Ki-Won ; Kim, Ki-Yong ; Choi, Gi-Jun ; Lim, Young-Chul ; Kim, Won-Ho ; Jung, Min-Wong ; Seo, Sung ; Lee, Byung-Hyun ; Lee, Sang-Hoon ;
Journal of The Korean Society of Grassland and Forage Science, volume 28, issue 3, 2008, Pages 165~170
DOI : 10.5333/KGFS.2008.28.3.165
Timothy (Phleum pratense L.) is an important grass species as forage. In order to optimize tissue culture conditions of timothy, the effects of plant growth regulators on callus induction and plant regeneration was investigated with mature seeds of colt cultivar. The optimal concentration of 2,4-D for the induction of primary callus from mature seeds was 3 mg/L. The highest embryogenic callus frequenc (25%) was observed when the mature seed were cultured on MS medium supplemented with 3 mg/L 2,4-D and 0.1 mg/L BA. The highest plant regeneration frequency was observed when type B callus was transferred to N6 medium supplemented with 1 mg/L 2,4-D and 3 mg/L BA. Regenerated plants were grown normally when shoots were transplanted to the soil. A short tissue culture period and regeneration system would be beneficial for molecular breeding of timothy by the production of transgenic plant.
Plant Regeneration from Different Explant Types of Birdsfoot Trefoil (Lotus corniculatus L.)
Lee, Sang-Hoon ; Lee, Ki-Won ; Kim, Ki-Yong ; Choi, Gi-Jun ; Kim, Meing-Jooung ; Ji, Hee-Chung ; Lee, Joung-Kyong ; Seo, Sung ; Lee, Byung-Hyun ;
Journal of The Korean Society of Grassland and Forage Science, volume 28, issue 3, 2008, Pages 171~176
DOI : 10.5333/KGFS.2008.28.3.171
Efficient plant regeneration system of birdsfoot trefoil (Lotus corniculatus L.) was development. The factors affecting the somatic embryo formation, its proliferation and regeneration capacity of leaf and stem explants of Empire cultivar was investigated. The highest number of somatic embryos was obtained on B5 medium supplemented with 1 mg/L NAA and 1 mg/L BA. Depending on different explants, highest frequency of embryogenic callus and regeneration were observed in Empire with leaf explants. The response from stem explants was slower and callus induction was less than that from leaf explants. Regenerated shoots formed complete plantlets in on 1/2 MS medium supplemented with 1 mg/L IBA. Regenerated plants were morphologically uniform with normal shape and growth pattern.
A Cold-Tolerant and Medium-Maturing Italian Ryegrass (Lolium multiflorum Lam.) New Variety, `Kowinmaster`
Choi, Gi-Jun ; Lim, Young-Chul ; Kim, Ki-Yong ; Kim, Meing-Jooung ; Ji, Hee-Chung ; Lee, Sang-Hoon ; Park, Hyung-Soo ; Moon, Chung-Sup ; Lee, Eun-Sup ; Seo, Sung ;
Journal of The Korean Society of Grassland and Forage Science, volume 28, issue 3, 2008, Pages 177~184
DOI : 10.5333/KGFS.2008.28.3.177
This experiment was carried out to breed a cold-tolerant variety of Italian ryegrass (Lolium multiflorum Lam.) in Grassland and Forage Crops Division, National Institute of Animal Science, RDA, Suwon from 1999 to 2006. ew variety, Kowinmaster as a diploid variety was light-green in leaf color and had medium and semi-erect growth habit in late autumn and early spring, respectively. Kowinmaster was 13th May in heading date as a medium-maturing variety. Especially, Kowinmaster was similar to Florida 80 in flag leaf width, longer 3cm in flag leaf length and longer 6cm in plant length than those of control variety, Florida 80, respectively. Stem width of Kowinmaster was similar to that of Florida 80. Cold tolerance of Kowinmaster was better than that of Florida 80. Dry matter yield (9,521 kg/ha) of Kowinmaster was 2% more than that of Florida 80. Feed value of Kowinmaster was 12.1% in crude protein, 70.9% in In vitro dry matter digestibility and 32.9% in acid detergent fiber that were similar to those of Florida 80, respectively, but in neutral detergent fiber, Kowimaster was 56.0% that was 1% lower than that of Florida 80.
Measuring of Cadmium Content in Sorghum(Sorghum bicolor (L.) Moench)
Park, Byung-Hoon ; Lee, Su-Chan ; Choi, In-Sub ; Kim, Jun-Ho ; Lee, Hyo-Jeong ; Park, Mun-Soo ; Kim, Sang-Deog A. ;
Journal of The Korean Society of Grassland and Forage Science, volume 28, issue 3, 2008, Pages 185~192
DOI : 10.5333/KGFS.2008.28.3.185
We have studied effect of water treatment sludge (WTS) on trace metals of sorghum hybrid (Sorghum bicolor (L.) Moench). In the present report it was for cadmium (Cd) content on background correction (BGC) mode with an atomic absorption spectrophotometer. The four treatments were Control, Compost, Alum + nitrogen, phosphorus, potassium (NPK), Compost + NPK. In the analysis, burner height of the atomic absorption spectrophotometer was adjusted to three levels; 3 mm, 6 mm, 9 mm. As a conclusion, 3 mm and 6 mm burner height conditions were better than 9 mm height for Cd analysis. And the conditions for widening the range, the mean, and the standard deviation (SD) values of observed absorbances as well as the condition for lessening the mean of observed background values are necessary for getting the better measuring of Cd. At the present experiment, 6 mm burner height condition is the best among the three burner heights.
New Barley Cultivars with Improved Morphological Characteristics for Whole Crop Forage in Korea
Park, Tae-Il ; Han, Ouk-Kyu ; Seo, Jae-Hwan ; Choi, Jae-Sung ; Park, Ki-Hun ; Kim, Jung-Gon ;
Journal of The Korean Society of Grassland and Forage Science, volume 28, issue 3, 2008, Pages 193~202
DOI : 10.5333/KGFS.2008.28.3.193
In Korea, domestic consumption of barley as a cereal crop has been decreasing since the 1980s. It has been considered that winter-season crop production could enhance the global competitiveness of domestic livestock industry by providing better quality fodder to livestock and enhancing field use rate. Therefore, the purpose of barley cultivation for cereal food production has been recently replaced by the production of forage barley. Consequently, the area of barley cultivation for forage is markedly increasing in Korea. Forage barley is cultivars especially as forage for cattle. While any type of barley can be used as forage for feeding cattle, forage barleys deliver a higher dry matter yield than conventional feed barley. We have developed forage barley cultivars with cattle`s favorite characters such as smooth awn, hood and auricleless types. Cultivar Wooho, Yuyeon, and Dami have smooth awn, hood type spike, and auricleless type plant. We also developed rough awn type barley cultivars, such as Yongyang, Sunwoo, Sangweon, and Soman, showing earlymaturing and high-yielding. They showed about 12 to 10 ton ha－1 in dry matter yield (average 33 ton
in fresh matter yield). And these were evaluated by forage quality which showed a higher grade of silage quality (TDN, ADF, NDF, CP, etc.) for whole crop barley use. Based on these results, it indicated that barley with smooth awn, hooded, and auricleless could be suitable sources in breeding for whole crop forage use.
Seed Blending Effect on Growth, Yield and Feed Value among Four Winter Cereals for Whole Crop Silage
Ju, Jung-Il ; Lee, Seung-Su ; Yoo, Ji-Hong ; Lee, Joung-Jun ; Park, Ki-Hun ; Lee, Hee-Bong ;
Journal of The Korean Society of Grassland and Forage Science, volume 28, issue 3, 2008, Pages 203~214
DOI : 10.5333/KGFS.2008.28.3.203
The overwintering crops, barley, wheat, oat and triticale etc, have been received in korea as high-quality roughage for round-baled silage making as livestock feed. Studies were carried out to evaluated the effects of seed blending on growth, yield and feed value between barley and wheat, triticale and oat, respectively. The results are summarized as follows : The barley was declined in the growth and spike`s size as affected by sown as mixed seeding with triticale, but not effected with oat. The total fresh yield were increased by grown as mixed seeding with wheat, triticale and oat, but the dry matter yield were not significantly increased because of the low percentage of dry matter and the decrease of barley`s growth. The neutral detergent fiber (NDF) and crude protein content were increased by seed blending, but acid detergent fiber (ADF) and digestible dry matter (DDM) content were decreased. The feed value was improved by seed blending of barley and wheat, but not significant at seed blending of triticale and oat. Because of the flourishing tillers, difference of heading date and abundant leaves of oat, the optimum crop for mixed seeding with barley for increment of forage productivity was oat in middle area of korea.
Comparison of Forage Production and Feed Value of Winter Forage Crops in Jeju
Park, Hyung-Soo ; Hwang, Kyung-Jun ; Park, Nam-Geon ; Choi, Gi-Jun ; Lee, Jong-Kyung ; Cheon, Dong-Won ; Ko, Moon-Suck ;
Journal of The Korean Society of Grassland and Forage Science, volume 28, issue 3, 2008, Pages 215~220
DOI : 10.5333/KGFS.2008.28.3.215
This experiment was conducted to compare forage production and feed value of winter forage crops at the experimental field of Livestock Division, National Institute of Subtropical Agriculture from 2007 to 2008. The experiment was arranged in a randomized block design with three replications. The five winter forage crops used in this experiment were barely (`Youngyang` and `Yuyeon`), oats (`Samhan` and `Swan`), wheat (`Kumkang` and `Woori`), triticale (`Shinyoung`) and italian ryegrass (`Hwasan 101` and `Florida-80`). The species having the fastest heading date was wheat (5th April) while the heading date of oats (`Samhan`) was the latest as 28th April. The dry matter (DM) content of wheat was the highest among the five winter forage crops. Italian ryegrass (`Hwasan 101`) showed the highest CP content by 11.2% and oats (Swan) showed the lowest content by 9.8%. Average acid detergent fiber (ADF) and neutral detergent fiber (NDF) content were 28.6 and 50.8% respectively. The five winter forage crops have narrow range of total nutrient digestibility (TDN) from 64.0% to 69.1%. Italian ryegrass (`Hwasan 101`) showed the highest DM yield by 25,951 kg/ha, but the DM yield of barely and wheat low by 13,892 kg/ha (`Yuyeon`) and 14,815 kg/ha (`Woori`), respectively. Italian ryegrass and oats have higher forage yield and feed value in Jeju. Also, oats has high grain and forage yield. The results demonstrated oats can cultivate as alternative winter forage crop for whole crop silage barely in Jeju.
Actual Outbreak Status of Rice Black-streaked Dwarf Virus Disease in Forage Corn of Korea
Choi, Gi-Jun ; Lim, Young-Chul ; Kim, Ki-Yong ; Seong, Byung-Ryul ; Kim, Meing-Jooung ; Kim, Won-Ho ; Ji, Hee-Chung ; Lee, Joung-Kyong ; Jeon, Byoung-Soo ; Jung, Min-Woong ; Lee, Sang-Hoon ; Seo, Sung ;
Journal of The Korean Society of Grassland and Forage Science, volume 28, issue 3, 2008, Pages 221~228
DOI : 10.5333/KGFS.2008.28.3.221
This experiment was carried out to investigate the actual outbreak status of rice black-streaked dwarf virus (RBSDV) disease in forage corn for securing the basic data to control of the disease all over the country from 2006 to 2007. Outbreak of the disease showed a wide difference according to regions and was severe in Icheon, Gochang, Kimje, Youngkwang, Kimchun, Youngju, Cheonan, and Boroung provinces in Korea. Outbreak rate of the disease was effected by planting time of forage corn. Disease rate was lower in corns planted from Apr. 26 to May 15 than in those of planted from April 10 to 25 or after May 31. The corn fields planted from April 26 to May 15 showed lower disease rate than that of planted from April 10 to 25 or after May 31. Also the outbreak rate of the disease was some difference according to corn varieties but was not genuinely resistant varieties to RBSDV. Dry matter yield of forage corn was significantly decreased depending on disease rate, and was highly negative correlation to disease rate. The forage corn infected with RBSDV was lower 3.2%, 3.6% and 12% in IVDMD, TDN, and RFV, and higher 3.7% and 4.5% in NDF and ADF than those of the healthy plant, respectively.
Evaluation of Fermentation Ability of Microbes for Whole Crop Rice Silage Inoculant
Kim, Jong-Geun ; Ham, Jun-Sang ; Chung, Eui-Soo ; Yoon, Sei-Hyung ; Kim, Meing-Jung ; Park, Hyung-Soo ; Lim, Young-Chul ; Seo, Sung ;
Journal of The Korean Society of Grassland and Forage Science, volume 28, issue 3, 2008, Pages 229~236
DOI : 10.5333/KGFS.2008.28.3.229
This experiment was conducted to study on the evaluation of fermentation ability of microbes for whole crop rice silage Inoculant at National Institute of Animal Science, RDA from 2004 to 2005. We collected 28 strains of microbes from whole crop rice silage. According to acidity and growth ability, 5 strains of microbes was isolated (R4-1, R7-1, R7-2, R10-1, R12-1). The cultures of 4 strains were identified to be Lactobacillus plantarum (R4-1, R7-1, R7-2 and R10-1) and one was identified to be Lactobacillus pentosus (R12-1). Whole crop rice was harvested at the yellow ripen stage. It was ensiled in experimental silos (20ℓ capacity) with or without microbial additives (R4-1, R7-1, R7-2, R10-1, R12-1 and three commercial inoculant) and stored at room temperature for 60d. The pH value and acetic acid content of additivetreated silages were lower and lactic acid content was higher than those of the control (p<0.05). There was a trend for acetic acid content to be lowest and lactic acid to be highest in R7-1 treated silage. Crude protein (CP) contents of R7-2 treated silage was higher and acid detergent fiber (ADF) and neutral detergent fiber (NDF) contents of R7-1 treated silage was lower (p<0.05). Although some strains of inoculant could improve silage quality, L. plantarum R7-1 was more effective as an inoculant for whole crop rice silage. This microbe was named NLRI 401 and registered in the Korea Agricultural Culture Collection.
Effect of the Application of Cattle Slurry on Productivity and Soil Organic Matter of Rye and Rye-Red Clover Mixture
Choi, Yeun-Sik ; Jung, Min-Woong ; Choi, Ki-Choon ; Yook, Wan-Bang ;
Journal of The Korean Society of Grassland and Forage Science, volume 28, issue 3, 2008, Pages 237~244
DOI : 10.5333/KGFS.2008.28.3.237
This study was conducted to investigate the effects of the cropping system of forage crops and application of cattle slurry on productivity of forage crops and soil fertility. The field experiments were conducted on the silt clay loam at Gongiam, Kwangju, Kyung-gi province in Korea for two years. This study was arranged in split plot design with three replicates. Main plots were the cropping systems, such as single crop and mixed crops. Subplots were the application rate of cattle slurry, such as 0, 150 and 300 kg N/ha. The yields of dry matter (DM) and nitrogen (N) were hardly influenced by the cropping system, whereas DM and N yields enhanced as increasing the rates of cattle slurry application (p<0.05). The contents of crude protein (CP) and total digestible nutrients (TDN) were hardly influenced by the cropping system, whereas CP content increased as increasing the rates of cattle slurry application (p<0.05). TDN was not differentially influenced by cattle slurry application. Neutral detergent fiber (NDF) and acid detergent fiber (ADF) contents were hardly influenced by the cropping system and application of cattle slurry. Organic matter (OM) content in soil samples collected at the end of the experiment were remarkably higher than those in the beginning of the experiment. The OM content of soil was significantly increased by application of cattle slurry (p<0.05).
Effect of Rate and Timing of Reseeding on Productivity and Nutritive Value of Forages in Forest Fire Burnt Pasture
Lee, Joung Kyong ; Yoon, Sei-Hyung ; Lim, Young-Cheol ; Ji, Hee-Chung ; Kim, Ki-Young ; Choi, Gi-Jun ; Kim, Won-Ho ; Kim, Jong-Geun ; Park, Hyung-Soo ; Tandang, L. L. ; Seo, Sung ;
Journal of The Korean Society of Grassland and Forage Science, volume 28, issue 3, 2008, Pages 245~250
DOI : 10.5333/KGFS.2008.28.3.245
On April 4 to 6, 2005, there was a huge fire in Yangyang-gun, Kangwon-do, Korea, which burned over 250ha of forests and 246 buildings including 160 houses. The effects of reseeding rate and timing on productivity and nutritive value of forages in the forest fire burnt pasture in this study were investigated. The effect of reseeding could not be seen in the burnt pastures in terms of forage productivity and quality in short term but there was a long-term effect particularly with higher reseeding rates at later days after the fire on forage botanical composition. We concluded that forest fire brought reduction in pasture forage yield for a short period but it did not make a significant effect for a long term.
Effects of Rumen Protected Choline on In vitro Ruminal Fermentation and Milk Production and Its Composition in Lactating Cows
Park, Byung-Ki ; Kim, Byong-Wan ; Jang, Hyun-Yong ; Shin, Jong-Suh ;
Journal of The Korean Society of Grassland and Forage Science, volume 28, issue 3, 2008, Pages 255~264
DOI : 10.5333/KGFS.2008.28.3.255
This study was conducted to evaluate the effects of rumen protected choline on in vitro ruminal fermentation and milk production and its composition in Holstein cows. Experiments were done with three treatment groups, basal diet without any supplement (T1), basal diet+23g/d of mixture of choline and wheat shorts (T2) and basal diet + 25.56 g/d of rumen protected choline (T3). The in vitro ruminal pH and ammonia concentrations were similar for three treatments during all incubation periods except for the in vitro ruminal pH on 3 hr incubation and ammonia concentrations on 9 hr incubation. No significant difference was found in the concentrations of acetate and total-VFA. The propionate and butyrate concentrations were not affected by the rumen protected choline except on 6 hr incubation on which the propionate and butyrate concentrations were intermediate (8.98 mg/dl) and least (3.22 mg/dl), respectively. Higher milk yield and milk fat and lactose were resulted in the rumen protected choline. However, the rumen protected choline did not affect the milk protein, solids not fat, total solids, MUN, somatic cell count. It is concluded that the rumen protected choline can be effective materials to improve the milk production, milk fat and lactose without little change on in vitro ruminal fermentation.