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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 33, Issue 4 - Dec 2013
Volume 33, Issue 3 - Sep 2013
Volume 33, Issue 2 - Jun 2013
Volume 33, Issue 1 - Mar 2013
Selecting the target year
A Late-Maturing and Whole Crop Silage Rice Cultivar `Mogwoo`
Lee, Sang-Bok ; Yang, Chang-Ihn ; Lee, Jeom-Ho ; Kim, Myeong-Ki ; Shin, Young-Seop ; Lee, Kyu-Seong ; Choi, Yong-Hwan ; Jeong, O-Young ; Jeon, Yong-Hee ; Hong, Ha-Cheol ; Kim, Yeon-Gyu ; Jung, Kuk Hyun ; Jeung, Ji-Ung ; Kim, Junhwan ; Shon, Ji-Young ;
Journal of The Korean Society of Grassland and Forage Science, volume 33, issue 2, 2013, Pages 81~86
DOI : 10.5333/KGFS.2013.33.2.81
`Mogwoo`, a new high yield and whole crop silage rice (Oryza sativa L.) cultivar, was developed by the rice breeding team of the National Institute of Crop Science, RDA, Suwon, Korea, from 1999 to 2009, and was released in 2010. It was derived in 1999 from a cross between Dasanbyeo, having a high yield, and Suweon431/IR71190-45-2-1. A promising line, SR25848-C99-1-2-1, selected by the pedigree breeding method, was designated the name of `Suweon 519` in 2007. This cultivar has about 155 days of growth period from seeding to heading, and is tolerance to lodging, with erect pubescent leaves as well as a long and thick culm. This cultivar has the same number of tillers per hill and higher spikelet numbers per panicle compared to Nokyang. `Mogwoo` has longer leaves compared with other Tongil-type varieties. This new variety is resistant to grain shattering, leaf blast, bacterial leaf blight, and small brown planthopper. The biomass yield of `Mogwoo` was 1,956 kg/10a in a regional test over three years. The result shows that `Mogwoo` is adaptable to central and south-east plain areas of Korea.
A New Early-Heading and High-Yielding Winter Oat Cultivar for Whole Crop Forage, `Okhan`
Han, Ouk-Kyu ; Park, Tae-Il ; Park, Hyung-Ho ; Song, Tae-Hwa ; Kim, Kee-Jong ; Park, Nam-Geon ; Ju, Jung-Il ; Jang, Young-Jik ; Hwang, Jong-Jin ; Kwon, Young-Up ;
Journal of The Korean Society of Grassland and Forage Science, volume 33, issue 2, 2013, Pages 87~93
DOI : 10.5333/KGFS.2013.33.2.87
`Okhan` (Avena sativa L.), an oat cultivar for winter use, was developed by the breeding team at the Department of Rice and Winter Cereal Crop, NICS, RDA in 2011. It was derived from an original cross between `Early80`, exhibiting early heading, and `Maine PI-590` (CI 7518), exhibiting large-size grain, in 1995. Subsequent generations as well as cross-bred cultivars were handled in bulk, and pedigree selection programs took place at Suwon and Yeoncheon, respectively. A promising line, `SO95027-B-45-16-10-6-2-Y7-10`, was selected in 2004, and was designated `Gwiri74` after being selected from a yield trial for three years from 2005 to 2008. The breeding line `Gwiri74` was subsequently evaluated for earliness of heading and forage yield in four different locations, Yesan, Iksan, Kimjae, and Jeju, from 2009 to 2011, and was finally named as `Okhan`. Over 3 years, the heading date of `Okhan` was about 6 days earlier than that of the check cultivar `Samhan`, and their average forage dry matter yield harvested at the milk-ripe stage was 15.0 ton
, compared with 14.1 ton
of check cultivar. Cultivar `Okhan` was lower than the check cultivar `Samhan` in terms of the protein content (9.2% and 9.9%, respectively) and total digestible nutrients (58.5%, and 59.3%, respectively), while the TDN yield per ha was more than the check (8.70 and 8.36 kg, respectively). Fall sowing cropping of `Okhan` is recommended only in areas where average daily minimum mean temperatures in January are higher than
, and it should not be cultivated in mountain areas, where frost damage is likely to occur.
Growth Characteristics and Productivity of Single Cross Maize New Hybrid for Silage and Grain, `Yanganok`
Son, Beom Young ; Baek, Seong Bum ; Kim, Jung Tae ; Lee, Jin Seok ; Ku, Ja Hwan ; Kim, Sun Lim ; Jung, Gun Ho ; Kwon, Young Up ; Ji, Hee Jung ; Huh, Chang Suk ; Park, Jong Yeol ;
Journal of The Korean Society of Grassland and Forage Science, volume 33, issue 2, 2013, Pages 94~99
DOI : 10.5333/KGFS.2013.33.2.94
Yanganok, a new single cross variety, was developed by the maize breeding team at the National Institute of Crop Science (NICS), RDA in 2012. This hybrid, which has a high yield of grain was produced by crossing two inbred lines, KS164 and KS163. KS164 is the seed parent and KS163 is the pollen parent of Yanganok. It is a yellow-orange intermediate maize hybrid (Zea mays L.). After a preliminary yield trial and advanced yield trial of Yanganok (Suwon180) in Suwon for 2 years, a regional yield trial was carried out for its growth characteristics, and yields were determined at 4 different locations from 2009 to 2012, with the exception of 2010. It was named `Yanganok`. The silking date of Yanganok is 2 days earlier than that of the check hybrid, Kwangpyeongok. Plant height of Yanganok is similar to Kwangpyeongok, but its ear height ratio is higher than that of Kwangpyeongok. It has resistance to lodging. Stay-green features of Yanganok are similar to those of Kwangpyeongok. The ear ratio of Yanganok is similar to Kwangpyeongok. It has moderate resistance to southern leaf blight (Bipolaris maydis) and strong resistance to northern leaf blight (Exserohilum turcicum). It has moderate resistance to black streaked dwarf virus (BSDV), ear lot and corn borer. The dry matter yield of Yanganok, 17.45 ton/ha, was similar to that of Kwangpyeongok. The total digestible nutrients (TDN) yield of Yanganok, 11.96 ton/ha, was similar to that of Kwangpyeongok. The grain yield of Yanganok, 8.32 ton/ha was similar to that of Jangdaok. Seed production of Yanganok went well due to a good match during crossing between the seed parent, KS164, and the pollen parent, KS163, in Yeongwol, and F1 seed yield was 1.79 ton/ha. Yanganok would be a suitable cultivar to all plain areas in the Korean peninsula.
Effect of Surface Sterilization Method on Agrobacterium-mediated Transformation of Field-grown Zoysiagrass Stolon
Ahn, Na-Young ; Alam, Iftekhar ; Kim, Yong-Goo ; Bae, Eun-Ji ; Lee, Kwang-Soo ; Lee, Byung-Hyun ;
Journal of The Korean Society of Grassland and Forage Science, volume 33, issue 2, 2013, Pages 100~104
DOI : 10.5333/KGFS.2013.33.2.100
Zoysiagrass (Zoysia japonica Steud.) is an important forage and turfgrass that spreads by stolons and rhizomes. Zoysiagrass stolon can be used directly for Agrobacterium-mediated genetic transformation by exploiting the potential of direct shoot formation. However, surface sterilization of field-grown stolons is difficult and remains to be explored. We developed an effective surface sterilization and culture method using the stolon explant for infection with Agrobacterium tumefaciens. Among various treatments, sequential disinfection in 30% bleach for 15 min followed by 0.1% mercuric chloride for 25 min resulted in the highest number of clean stolons. The efficacy of mercuric chloride was increased under vacuum conditions by incubating at 800 mbar for 5 min. The inclusion of 2.5 mg/l amphotericin B further prevents fungal growth in in vitro cultures. This protocol would speed up the development of transgenic plants by utilizing field-grown stolon nodes.
Effect of Nitrogen Fertilization on the Forage Growth, Yield and Quality of Native Reed (Phragmites communis)
Seo, Sung ; Park, Jin Gil ; Kim, Won Ho ; Kim, Meing Jooung ; Lee, Sang Hak ; Jung, Jong Sung ; Park, Hyung Soo ; Sung, Ha Guyn ; Lee, Joung Kyong ;
Journal of The Korean Society of Grassland and Forage Science, volume 33, issue 2, 2013, Pages 105~110
DOI : 10.5333/KGFS.2013.33.2.105
This study was carried out to investigate the effect of nitrogen (N) fertilization on the forage growth, production and quality of native reed (Phragmites communis) grasses. Field experiments were conducted in Cheonan and in Ansan, 2012. Treatments were control (no N fertilization), 50 kg/ha and 100 kg/ha in Cheonan plots (fertilization on April
, and harvest on June
). Treatments in Ansan plots were control (no N fertilization) and 60 kg/ha (fertilization on May first, and harvest on August first). Forage growth and leaf colors were improved in N fertilized plots. However, the drymatter (DM) percentage was slightly decreased with N fertilization. Forage yields, in terms of DM, crude protein (CP) and digestible DM (DDM), were significantly increased with N fertilization in both sites. In Cheonan, DM, CP and DDM yields per ha were 4,026 kg, 235 kg and 1,850 kg, respectively, in the control plot, and were 4,658 kg, 306 kg and 2,388 kg, respectively, in the N 50 kg plot, and 5,622 kg, 446 kg and 3,143 kg, respectively, in the N 100 kg plot. In Ansan, DM, CP and DDM yields per ha were 2,802 kg, 177 kg and 1,288 kg, respectively, in the control plot, and were 3,876 kg, 294 kg and 1,853 kg, respectively, in the N 60 kg plot. Forage quality in terms of CP content, in vitro DM digestibility (IVDMD) and relative feed value (RFV) were also increased with N fertilization in both sites. In Cheonan, the CP content, IVDMD and RFV were 5.85%, 45.96% and 64.5 (grade 5), respectively, in the control plot, 6.58%, 51.27% and 72.3 (grade 5), respectively, in the N 50 kg plot, and 7.94%, 55.91% and 72.7 (grade 5), respectively, in the N 100 kg plot. In Ansan, the CP content, IVDMD and RFV were 6.30%, 45.98% and 70.2 (grade 5), respectively, in the control plot, and 7.59%, 47.80% and 78.3 (grade 4), respectively, in the N 60 kg plot. In conclusion, N fertilization of 60~100 kg/ha was desirable for greater forage production, with a higher quality of native Phragmites communis achievable. This should only be applied if the fertilization area is not located at a riverside/streamside or in riparian land where there is a high risk of water pollution by fertilization.
Comparison of Forage Productivity and Outbreak Rate Between Corn Varieties in Rice Black-Streaked Dwarf Virus (RBSDV) Prevalent Area
Choi, Gi Jun ; Lim, Young Chul ; Yoon, Sei Hyung ; Ji, Hee Chung ; Lee, Sang-Hoon ; Jung, Min Woong ; Seo, Sung ; Park, Hyung Soo ; Kim, Ki-Yong ;
Journal of The Korean Society of Grassland and Forage Science, volume 33, issue 2, 2013, Pages 111~116
DOI : 10.5333/KGFS.2013.33.2.111
This experiment was carried out to select a resistant corn variety for rice black-streaked dwarf virus (RBSDV) disease in a RBSDV prevalent area (Gochang of Jeollabukdo) from 2006 to 2008. Ten corn varieties for silage preparation were cultivated with first cropping and second cropping system in an RBSDV field, and were tested outbreak rates of RBSDV and dry matter (DM) yield of forage. The outbreak rates of RBSDV were significantly different between corn varieties. Therefore, the resistance degree of corn varieties for RBSDV were divided into 4 groups; very resistant (`Kwangpeyongok` and `Kwanganok`), resistant (`P3156` and `P3394`), mildly resistant (`Cheonganok` and `P32P75`) and susceptible (`Suwon19`, `DK697` and `GW6959`) groups respectively. DM yield of forage in RBSDV fields exhibited comparatively significant differences between varieties (p<0.05). DM yield of resistant varieties (`Kwangpeyongok`, `Kwanganok`, `P3156` and `P3394`), were higher (14~26%) than those of susceptible varieties (`Suwon 19`, `DK697` and `GW6959`). Therefore, resistant varieties were recommended for increasing forage productivity in field of RBSDV prevalent areas.
Agronomic Characteristics and Productivity of Introduced Common Vetch (Vicia sativa) Cultivars and Korean Wild Common Vetch in Kyeongbuk
Shin, Chung Nam ; Ko, Ki Hwan ; Kim, Jong Duk ;
Journal of The Korean Society of Grassland and Forage Science, volume 33, issue 2, 2013, Pages 117~122
DOI : 10.5333/KGFS.2013.33.2.117
This experiment was conducted to evaluate agronomic characteristics, forage quality, and dry matter (DM) yield of hairy vetch `Cold green`, common vetch `Maxivesa`, `Wild common`, `Rasina`, `Morava`, and `Blanchefleur`, at Seongju in Kyeongbuk from 2010 to 2012. The experiment was arranged in randomized complete block design with three replications. Vetchs were seeded on the 10th of Oct. 2010 and on the 3rd of Oct. 2011. Vetch plants were harvested on the 4th of May 2011 and on the 10th of May in 2012. `Cold green` and `Wild common` exhibited greater cold tolerance than other cultivars. Fifty percent-flowering of `Cold green` occurred on the 22nd of Apr., whereas that of `Wild common` occurred on the 26th of Apr. and those of `Rasina` and `Blanchefleur` occurred on 28th of Apr. and that of `Maxivesa` occurred on 17th of May. The DM yield of `Cold green` was higher (p<0.05) than all other cultivars, whereas the DM yield of `Wild common` was higher (p<0.05) than those of the remaining 4 cultivars. According to the results obtained from this study, it is suggested `Wild common` vetch is be recommendable for cultivation where increased DM production is sought.
The Studies on Growth Characteristics and Dry Matter Yield of Hybrid Corn Varieties in Daegwallyeong Region
Kim, Meing Jooung ; Seo, Sung ; Choi, Ki Choon ; Kim, Jong Geun ; Lee, Sang Hack ; Jung, Jeong Sung ; Yoon, Sei Hyung ; Ji, Hee Chung ; Kim, Myeong Hwa ;
Journal of The Korean Society of Grassland and Forage Science, volume 33, issue 2, 2013, Pages 123~130
DOI : 10.5333/KGFS.2013.33.2.123
This study was conducted to investigate the effects of climate change on the growth characteristics and dry matter yields of silage corn hybrids in fields of forage crops of Hanwoo Experiment Station, National Institute of Animal Science, RDA, from Apr. 2009 to Sep. 2011. Corn hybrids were cultivated in Daegwallyeong of Gangwon Province, at an altitude of 760 m. Corn varieties used in this study consisted of 5 domestic varieties and 5 foreign varieties. Differences of silk days according to years occurred at an average of 5.5 days. The silk periods of domestic varieties occurred from Aug. 8 to 12, while that of overseas varieties was from Aug. 5 to 11. Silk days of domestic varieties occurred approximately 3 to 4 days earlier than those of oversea varieties. Silk days of Kwangpyeongok and P3156 belonging to the early varieties were Aug. 8 and 5, respectively. Kwangpyeongok and P3156 were Aug. 8 and 5, respectively. Pyeonganok and DK729 belonged to late varieties. The mean plant height of corn was approximately 231 cm, while those of Kwangpyeongok and Pyeonganok were 236 cm and 237 cm, respectively. The mean stem diameter and ear height of corn were approximately 23.2 mm and 94 cm, respectively. In the case of stem diameters, those of Cheonganok and 33J56 were 86 cm and 80 cm, respectively, while Gangdaok grew to a greater height (enter height) than other varieties. Dry matter yields of Kwangpyeongok and Pyeonganok were higher than those of other varieties. The mean leaf ratio of corn was 39.3%, while that of domestic varieties increased as compared to foreign varieties. The average DM yield of corn was 16,653 kg/ha, while those of 32P75, P3156, Pyeonganok, P3394 and Kwangpyeongok were 18,901, 17,997, 17,675, 17,194, 17,188 kg/ha, respectively. Total digestible nutrient (TDN) yields of 32P75, P3156, P3394, Pyeonganok and Kwangpyeongok were 13,381, 12,590, 12,532, 12,140 and 12,036 kg/ha, respectively. Corn crude protein (CP), in vitro dry matter digestibility (IVDMD), neutral detergent fiber (NDF), acid detergent fiber (ADF) and TDN were 7.8%, 74.2%, 42.4%, 23.5% and 70.3%, respectively. In the case of nutritive values of corn, there was no significant difference between of corn varieties of domestic and foreign origin.
Examination of Availability of Whole Crop Silage TMR for Late Fattening Hanwoo Steers in the Cattle
Jugder, Shinekhuu ; Choi, Seong Ho ; Lee, Jeong Ju ; Lee, Gyeong Geun ; Lee, Sang Suk ; Song, Man Kang ;
Journal of The Korean Society of Grassland and Forage Science, volume 33, issue 2, 2013, Pages 131~138
DOI : 10.5333/KGFS.2013.33.2.131
The present study was conducted with three ruminally cannulated non-lactating Holstein cattle in a
Latin square design to determine the fermentation characteristics and effective degradability (ED) in the rumen, as well as the whole tract digestibility of whole crop silage based total mixed ration (TMR) in comparison with conventional separate feeding of concentrate and rice straw for late fattening Hanwoo steers. The cattle in each group were fed separate feeding of concentrate and rice straw (control), whole crop barley silage based TMR (BS-TMR) or whole crop rye silage based TMR (RS-TMR). The ruminal fermentation characteristics such as pH, ammonia-N concentration and total volatile fatty acid were not affected by the experimental diet. The molar portion of acetate (
) was lowest in rumen fluid 1 h after feeding when cattle were fed BS-TMR (p<0.033). Molar proportions of propionate (
), butyrate and
were not influenced by the experimental diet. There were no differences in effective degradability or whole tract digestibility of feed components among any of the experimental diets. The data obtained from the metabolism trial indicate that the feeding value of TMR with BS or RS is equal to that of a conventional separate feeding of concentrate and rice straw.