Go to the main menu
Skip to content
Go to bottom
REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
> Journal Vol & Issue
Journal of The Korean Society of Grassland and Forage Science
Journal Basic Information
Journal DOI :
The Korean Society of Grassland and Forage Science
Editor in Chief :
Volume & Issues
Volume 18, Issue 4 - Dec 1998
Volume 18, Issue 3 - Sep 1998
Volume 18, Issue 2 - Jun 1998
Volume 18, Issue 1 - Mar 1998
Selecting the target year
Evaluaton of the Government Recommended Forage Cultivars in Korea IV. Forage performance and quality of sorghum-sudangrass hybrids
Journal of The Korean Society of Grassland and Forage Science, volume 18, issue 1, 1998, Pages 1~10
Eleven sorghun-sudangrass hybrids have been recommended as the government recommended forage cultivars, however, their forage performance and quality have mostly been tested at two regions, such as Suweon in the Middle Northwestern Coast Region and Sunghwan in the Middle Southwestern Coast Region. Therefore, the objective of this experiment was to retest the forage performance and quality of eleven government recommended sorghum-sudangrass hybrids(TE haygrazer, 988. TE haygrazer-R, SX-17, NC + 855, 855F, GW9110G, G83F, Sordan 79, Speed feed and Jumbo) at five regions, such as Icheon in the Middle Northern Inland, Suweon in the Middle Northwestern Coast, Sunghwan in the Middle Southwestern Coast, Keongsan in the Keongpook Inland and Kwangju in the Southern Inland, 1993 and 1995. Among the eleven hybrids tested, 'NC + 855' gave the highest forage yield at all regions when averaged over the two-year period, but others varied by region. 'NC + 855' was the highest yielding at Icheon, Keongsan and Kwangju, G83F was highest at Suweon and 855F was highest at Sunghwan. 'Jumbo' (headless type) was generally higher in forage quality than others, but at both Suweon and Icheon, 'NC + 855' and '855F' were higher quality than others. As the results of the experiment, 'TE haygrazer', 'NC + 855' , G83F and 'GW9110G1 at Icheon, 'G83F' and 'Sordan 79' at Suweon, 'NC + 855' and '855F' at Sunghwan, '988' and 'NC + 855' at Keongsan, and 'TE haygrazer-R' , 'NC + 855', 'GW9110G' and 'G83F' at Kwangju might be preferable to other hybrids because they have higher forage yield.
Evaluaton of the Government Recommended Forage Cultivars in Korea V. Forage performance and quality of Italian ryegrass cultivars
Journal of The Korean Society of Grassland and Forage Science, volume 18, issue 1, 1998, Pages 11~18
Twelve Italian ryegrass (Lolium mult~flomm L.) cultivars have recommended as the government recommended forage cultivars since 1984, however, the forage performance and quality have been mostly tested at two locations, such as Suweon and Sunghwan in the Middle Northwestern and Middle Southwestern Coast Regions, respectively. Therefore, the objective of this experiment was to retest the forage performance and quality of already recommended twelve government Italian ryegrass cultivars at five scattered locations, such as Icheon, Suweon, Sunghwan, Keon- and Kwangju from 1992 to 1995 with the intention of improving recommendations to dairy farmers. Cultivars with more dry matter yield than the control 'Tetrone' were 'Tosca' , 'Bartissimo' , 'Florida 80' and 'Gordo' in the Middle Northwestern Coast Region ; 'Tosca' , 'Florida 80' , 'Bartissimo' , 'Wencke' and 'Gordo' in the Middle Southwestern Coast Region ; 'Tosca' , 'Florida 80' , 'Sikem' , 'Bartissimo' , 'Wencke' and 'Gordo' in the Keongbuk Inland Region; 'Florida 80', 'Tosca' , 'Barmultra' and 'Bartissimo' in the Southern Inland Region and 'Florida 80' , 'Gordo' , 'Sikem' , 'Bartissimo' and 'Tosca' in the Southern Coast Region. At all the locations in 1992-95, 'Florida 80' produced the highest forage yield and showed earliness, but this cultivar was less cold tolerant in the Middle Northwestern and Middle Southwestern Coast Regions and grew tall which made it vulnerable to lodging in all the exprimental regions except the Southern Coast. Differences among the ryegrass cultivars for the three year mean ADF and NDF were small and inconsistent.
Influence of Different Fertilizer Management on Forage Production and Botanical composition
Journal of The Korean Society of Grassland and Forage Science, volume 18, issue 1, 1998, Pages 19~26
The effects of different fertilizer management on herbage production and botanical composition were determined. Field experiments were conducted during 1991 - 1993 on sandy loam soil at Allgiu south western Germany under variabling fertilizer management; cattle slurry, NPK, PK chemical fertilizer management and zero fertilization. The dry matter yield of forage was the highest in the plot of mineral fertilizer and lowest in the plot of without fertilization. The dry matter yield of P-K application was higher by 1.2 ton than that of without fertilization. The content of crude protein, crude fibre, digestible dry matter yield, net energy and nitrogen content of plants was not significantly different among different fertilizer management. N uptake of plants was in the order NPK chemical fertilizer (347kg N/ha) > cattle slurry (337kg N/ha) > P-K chemical fertilizer (325kg N/ha) > without fertilization (3 15kg N/ha).
Effect of Soil Moisture and Temperature on Emergence of Forage Grasses
Journal of The Korean Society of Grassland and Forage Science, volume 18, issue 1, 1998, Pages 27~34
The present study elucidates of the effect of less water stress in different temperature condition on the emergence of forage grasses. Water condition was controlled to 30% and 60% by water content by wet soil. The mean temperature is conducted by
(out side) and
(glass house). The results are as follows: 1. Mean emergence time and emergence day after sowing of grasses were greatly influenced by water content of soil and temperature. It was suggested that temperature was very important for the light competition with weed in the early growth of grass. 2. Accumulatied emergence of grasses was nat afected by temperature, but it was sensitively affected by water content of soil.
Genetic Polymorphisms and phylogenetic Relationships of Italian Ryegrass Cultivars Based on Random Amplified Polymorphic DNA ( RAPD ) Markers
Journal of The Korean Society of Grassland and Forage Science, volume 18, issue 1, 1998, Pages 35~42
Eleven Italian ryegrass cultivars were examined for their genetic polymorphisms and phylogenetic relationships using randomly amplified polymorphic DNA (RAPD) markers. In RAPD analysis of 34 random primers, 96 of total 162 bands obtained from 16 primers were polymorphic and sizes of polymorphic band ranged between 0.5 and 1.5kb. Number of bands amplified per primer was varied from 3 to 16 and average number was 14.8. Phylogenetic relationship among cultivars based on the RAPD analysis was examined using UPGMA computer program. In pairwise genetic similarity test of 11 Italian ryegrass cultivars, Grazer and Orlando showed highest coefficient of genetic similarity as 0.740, whereas Marshall and Orlando was lowest as 0.438. Eleven Italian ryegrass cultivars were grouped into 3 major clusters and genetic distance of clusters ranged between 0.567 and 0.646, indicating low level of genetic variation.
Study on No-tillage Silage Corn Production with Legume Hairy Vetch ( Vicia villosa Roth ) Cover I. Changes of soil mineral nitrogen, yeild and nitrogen uptake of corn by quantity of hairy vetch cover
Journal of The Korean Society of Grassland and Forage Science, volume 18, issue 1, 1998, Pages 43~48
No-tillage silage corn with legume hairy vetch(Vicia villosa Roth, HV) has renewed interest in supply of mineral N, soil erosion control at sloping land and weed control by cover of HV killed. This study was conducted to monitor concentration of soil mineral N (
-N) and to find out variation of growth, yield and N uptake of silage corn according to quantity of HV cover; HV-removed, 1X-HV, 2X-HV at field of Crop Experiment Station in 1996. HV groM in early spring decreased the mineral N of soil depth 7.5 -22cm before corn seeding. But, killed HV cover increased the concentration of soil mineral N at surface soil (0-7.5cm) up to 45.4mglkg at early growth stage of corn. Dry matter(Dh4) of corn at harvest was lower in W-removed than in Okg FNlha. But DM and N uptake of corn at harvest were increased by quantity of HV-cover increasing liom HV-removed to 2X-HV. Hairy vetch could substitute N fertilizer for silage corn by N mineralized h m HV killed, but reduced early growth and N uptake of corn before silk by reducing soil mineral N of plow layer.
Effects of Plant Density on Forage Yield and Quality of Corn
Journal of The Korean Society of Grassland and Forage Science, volume 18, issue 1, 1998, Pages 49~54
This experiment was carried out to investigate effect of plant density on yield and quality of corn at the forage experimental field, grassland and forage division, National Livestock Research Institute, RDA, Suwon eom 1996 to 1997. The two corn hybrids, P 3352 and G 4743, were grow at plant density of 67,000; 71,000; 83,000 ; 89,000 and 95,000 plantha in 60,70 and 75-an spaced rows. At the low density, plant and ear height were decreased but ear length and weight were increased. Plant density had little effect on the tasseling date, silking date and ear ratio to total dry matter. The total dry matter yield of two hybrids was increased kom 15,294 to 18,996 in P 3352 hybrid and 15,881 to 21,386kglha in G 4743, respectively, by decreasing plant density. Plant density had little effect on the ADF(acid detergent fiber), NDF (neutral detergent fiber) and CP(crude protein) concentrations, but the quality of late maturity hybrid, G 4743, was higher than that of early maturity hybrid, P 3352. The result of this study indicate that 67,000 plantlha plant density was recommendable for machanization and maximum DM yield of corn.
Effects of the Pasture Types and the Leveling Methods of Seedbed on the Runoff , Soil Loss , Botanical Composition , Dry Matter Yield of Forage and Economical value
Journal of The Korean Society of Grassland and Forage Science, volume 18, issue 1, 1998, Pages 55~60
This study was conducted to investigate the effects of the pasture types and the leveling methods of winding slope land for seedbed on the runoff, soil loss, botanical composition, dry matter yield of forage and economical value at the Experimental Field of Grassland and Forage Crops Division, National Livestock Research Institute, Suweon, from 1994 to 1995. The results obtained are summarized as follows: 1. Runoff of the improved land was higher than that of the unimproved land in the top grass and bottom grass. 2. Soil loss of the improved land was higher than that of the unimproved land in the top and bottom grasses in the first year. However, it was slightly higher in the unimproved land, and all of it were greatly decreased in the second year. 3. The percentage of grasses coverage was increased with the improved land in the first year, and it was not different between the improved land and unimproved land in the second year. Also, it was slightly increased in the bottom grasses. 4. Dry matter yield of grasses was increased with improved land at the top and bottom grasses. DM yield of grasses was increased in the top grasses in the first year and bottom grasses in the second year, respectively. 5. The establishment cost of grasses was decreased with wages decrement, and the management cost was saved about 1,116,000 won per ha with improved land. The results demonstrated that although soil loss was increased by leveling methods of improved land irrespective of pasture types in the first year, it was decreased with time little by little. Also, improved land was very good for grasses coverage, dry matter(DM) yield and economical value.
Effects of Castration and Injection Time of rbST on Dry Matter and Nutrient Intake in Holstein Bulls
Journal of The Korean Society of Grassland and Forage Science, volume 18, issue 1, 1998, Pages 61~68
This research was canied out to investigate the effect of castration and injection time of sustained release recombinant bovine somatotropin(SR-rbST) on dry matter intake(DM1) and nutrient intake of surgically castrated 32 Holstein young bulls by growth stage. The main results were as follows: 1. DM intakes were not different between in bull and steer groups, but those in rbSTl and rbST2 were 7.88 and 7.65kg respectively, which were lower 6-9% compared to bull and steer groups. 2. Actual DM intake to DM requirement of Beef cattle(NRC) was 88.5~97.7%, while net energy intake was sufficient for NE requirement in all groups during all growth stage except rbST group during fmishing stage. 3. Overall mean concentrate intake to body weight in steer group was the highest as 1.94%, and then those in rbST groups were 1.87~1.89% which were higher 0.07~0.09% unit than in bull group. 4. Feed conversion ratios(DM) in bull, rbSTl and rbST2 groups were 8.29, 8.18 and 7.60kg respectively, which were improved 12.4, 13.9 and 22.6%, respectively, compared to steer group.
Transformation of Brassica napus with Glutathione Reductase Gene
Lee, Hyo-Shin ; Chung, Min-Sup ; Jo, Jin-Ki ;
Journal of The Korean Society of Grassland and Forage Science, volume 18, issue 1, 1998, Pages 69~76
This study was conducted to construct of the transgenic plants wliich are resistant to oxidative stresses including ozone with B. mpestris cytosolic glutathione reductase cDNA using the binary vector system of Agrobacterium tumefaciens. The 1.8kb B. campestris cytosolic GR cDNA was subcloned into the unique Sma I site of the plant transformation vector pBKSI- I, downstream of the constitutive CaMV 35s promoter and upstream of the nos termination sequence, in place of the uidA (GUS) reporter gene. The resulting plant transformation vector, pBKS-GRI, was introduced into A. tumefaciens LBA4404 by two cycles of tkeze-thaw method. The B. nqus cotyledonary petioles were transformed by the Agrubaferium harboring pBKS-GRI. Transformed shoots were induced and selected on regeneration medium supplemented with kanarnycin. The shoot formation was increased remarkably by addition of Ag
, in MS media. The transgenic plants were analyzed for the presence of the B. campestris GR gene by Southern blot analysis and it was confirmed that a foregin gene was stably integrated into the genomes of B. nqus plants.