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RAPD를 이용한 보리×밀 속간교잡종의 보리유전자 도입 확인
임용우(Yong Woo Rim),홍병희(Byung Hee Hong),남중현(Jung Hyun Nam),박문웅(Moon Woong Park),하용웅(Yong Woong Ha),박광근(Kwang Geun Park),신정섭(Jeong Sheop Shin) 한국육종학회 1995 한국육종학회지 Vol.27 No.4
Random amplified polymorphic DNA(RAPD) was employed as a genetic marker in order to verify the genetic introgression of barley(cv. Manker 16) to barley × wheat backcross(BC₂F₁) lines. In RAPD analysis of 12 random primers tested, four of the 14 progenies obtained from barley × wheat backcrosses expressed band unique only to barley using primer number 225 (5’-CGA CTC ACA G-3’), and all progenies except H6-2 and H6-3 expressed bands unique only to barley using primer number 274(5’-GTT CCC GAG T-3’). All progenies of the BC₂F₁ lines appeared to have at least one of barley polymorphic patterns through RAPD analysis. Somatic chromosome numbers of BC₂F₁ lines ranged between 46 to 49 and appeared to have 4 to 7 chromosomes of barley. Use of RAPD as a genetic marker for the detection of genetic introgression of barley in barley × wheat intergeneric hybrid derivatives was effective and useful.
Festulolium braunii 교잡종의 재배특성, 사료가치 및 수량성
성병렬(Byung Ryeol Sung),김맹중(Meng Jung Kim),임근발(Keun Bal Lim),임용우(Yong Woo Rim),김기용(Ki yong Kim),최기준(Gi Jun Choi) 한국초지조사료학회 2006 한국초지조사료학회지 Vol.26 No.2
This experiment was carried out in order to examine the winterhardiness, heading date, fresh and dry matter yeild of Festulolium braunii, a hybrid of Festuca pratensis and Lolium multiflorum, which is newly introduced in Korea. This experiment was performed at National Livestock Research Institute in Suwon and Namwon from September 2004 to July 2005. The results are as follows. “Fleurial”, “Boxer”, and “Perun” showed stronger winterhardiness than “Hwasan 101”, which is one of the strongest in the winterhardiness hybrids. Therefore, we do not see there is any problem in winterhardiness when these hybrids are cultivated in Korea. The hybrids are turned out to be mid and late maturing hybrid. The average heading dates of the three hybrids were May 25 in Namwon and May 27 in Suwon. These dates are lower(1~3 days) than that of Hwasan 101. They showed 91~96 ㎝ in leaf length at 1st cutting times which are comparatively long. This experiment also disclosed that their lodging and regrowth are strong and excellent. We also found out that there are significant difference between regions and hybrids in the total fresh yield per ha. The average fresh yield of Suwon was 83,222 ㎏/㏊ and that of Namwon was 69,139 ㎏/㏊. We could not see any difference in the dry matter yield affected by region, however, there were significant difference in hybrids(p<0.05). The crude protein contents of the three hybrids indicated very high figures. the crude protein cotents of Perun, Fleurial and Boxer are 18.0%, 17.4% and 16.7% respectively. However the ADF (Acid Detergent Fiber) shows 28.1~29.2% which is less contents than 33.2% of Hwasan 101. We found out from this experiment that these three hybrids have excellent feed quality because the NDF (Neutral Detergent Fiber) is decreased by 7~3.8% comparing that the NDF of Hwasan 101 is 58.3%. Also each hybrids contains more crude fat by 1%, a little more chemical composition and less ash contents. Thus we can learn that chemical composition contents of these hybrids are also fittable.
최기준(Gi Jun Choi),임영철(Young Chul Lim),임용우(Yong Woo Rim),성병렬(Byung Ryul Sung),김맹중(Meing Jooung Kim),김기용(Ki-Yong Kim),서성(Sung Seo) 한국초지조사료학회 2006 한국초지조사료학회지 Vol.26 No.1
This experiment was carried out to breed the cold-tolerant variety of Italian ryegrass (Lolium multiflorum Lam.) at the Grassland and Forage Crops Division, National Livestock Research Institute, RDA at Suwon, Korea, from 1999 to 2005. The new variety ‘Kogreen’ is a diploid variety with a green leaf color and had semi-erect habit in late autumn and erect growth habit in early spring. The heading date of ‘Kogreen’ was on May 4, and for ‘Florida 80’ was May 2, both are considered as early-heading variety. ‘Kogreen’ was wider by 0.7mm in flag leaf width, longer by 2 cm in flag leaf length and shorter by 1cm in plant length than the control variety, Florida 80. Stem width of ‘Kogreen’ was similar to that of ‘Florida 80’ and ‘Hwasan 101’. cold tolerance of ‘Kogreen’ was better than that of ‘Florida 80’. Dry matter(DM) yield (12,884kg/ha) of ‘Kogreen’ was 3% less than that of ‘Florida 80’. In vitro dry matter digestibility was 74.7% and total digestible nutrient was 65.1%, which are 3.6% and 1.5% higher than those of ‘Florida 80’, respectively. Acid detergent fiber and neutral detergent fiber of ‘Kogreen’ were 30.1% and 54.1% which are 1.9% and 1.3% lower than those of ‘Florida 80’, respectively.
최기준(Gi Jun Choi),임영철(Young Chul Lim),김기용(Ki-Yong Kim),성병렬(Byung Ryeoul Sung),임용우(Yong Woo Rim),김맹중(Meng Jung Kim),임근발(Kim Keun Bal),서성(Sung Seo) 한국초지조사료학회 2006 한국초지조사료학회지 Vol.26 No.3
This experiment was carried out to breed the cold-tolerant variety of Italian ryegrass (Lolium multiflorum Lam.) in Grassland and Forage Crops Division, National Livestock Research Institute, RDA, Suwon from 1987 to 2005. New variety, Kowinner as a tetraploid variety was dark green in leaf color and growth ㏊bit in autumn and early spring was semi-prostrate and medium, respectively. Kowinner as a medium or late-heading variety was 19th May in heading date. Flag leaf length of Kowinner was 29 cm t㏊t was the same as control variety, Hwasan 101. Length of longest stem and plant length of Kowinner were 70 cm and 97 cm t㏊t was longer 3 cm t㏊n those of Hwasan 101, respectively. Stem width of Kowinner was thicker t㏊n t㏊t of Hwasan 101. Expecially, Kowinner was very good in regrowth. Cold tolerance of Kowinner was slightly weaker t㏊n t㏊t of Hwasan 101 and slightly stronger t㏊n t㏊t of Florida 80. Dry matter (DM) yield (12,884 ㎏/㏊) of Kowinner was 8% more t㏊n t㏊t of Hwasan 101. In vitro dry matter digestibility and total digestible nutrient (TDN) of Kowinner were 76.2 and 63.3% t㏊t was 1.6 and 0.4% lower t㏊n those of Hwasan 101, respectively.
국내육성 오차드그라스 품종들의 캘러스 형성율 및 식물체 재분화 효율
김기용,강경민,배은경,이인애,임용우,최기준,박근제,손대영,조진기 Plant molecular biology and biotechnology research 2003 Plant molecular biology and biotechnology research Vol.2003 No.-
Comparisons of callus formation ratios from seed explants, callus sizes, regeneration ratios from callus and regeneration efficiency for 4 orchardgrass (Dactylis glomerata L.) varieties (Three were developed in Korea and one was imported from foreign nation) are as follows; Jangbeol 102 (67.0%) has the highest callus formation ratio in 4 weeks incubated callus after bedding the seed explants, but Potomac (68.4%) has the highest ratio in 6-seek callus. Potomac (3.93cm) has the highest callus size in 4-week callus, but Jangbeol 101 (4.32cm) has the highest size in 6-week callus. Jangbeol 101 (17.7%) has the highest plant regeneration ratio in 4-week callus, but Potomac (37.4%) has the highest raion in 6-week callus. Jangbeol 102 (11.5%) has the highest plant regeneration efficiency in 4-week callus, but Potomac (25.6%) has the highest efficiency in 6-week callus.