라이밀의 葯培養 適期 判定을 위한 指標特性

Kwang Geun Park(朴光根),Yang Soon Kang(姜良淳),Jong Yol Choi(崔鍾烈),Kyung Min Yoon(尹景民) 한국육종학회 1994 한국육종학회지 Vol.26 No.3

Optimum stage of microspore development and its best indicator for triticale anther culture were investigated by using triticale cv. “Sinkihomil”. The length from the auricle of flag leaf to the top of spike was the best indicator for determining optimum stage of microspore development. During the pretreatment at 5℃, the position of the top of spike was increased by 3~4㎜ a day and the microspore was slightly developed. It was observed that the early uninucleate stage of microspore was best for callus formation. Calli induced from microspores at early and early-mid-uninucleate stages were regenerated a lot of green plants, while albino plants were increased on calli obtained from late-uninucleate microspores.

라이밀 葯培養에서 煎處理 條件이 캘러스 誘起에 미치는 影響

Kwang Geun Park(朴光根),Kyung Min Yoon(尹景民) 한국육종학회 1996 한국육종학회지 Vol.28 No.1

Improvement of triticale anther culture techniques is essential to develope new varieties in limited time. This study was carried out to increase the efficiency of anther culture for haploid breeding in triticale. Before explanting, each solution of 2, 4-D, GA₃ and EACA(E-Aminocaproic Acid) was injected into the sheath with spike. GA₃ was more effective for callus induction than others. Also, pretreatment of explants for 3 to 7 days at 5℃ in C17, B5 and MS liquid media were better for callus induction. The spikes were treated with mutagens, X-ray and EMS(Ethylmethanesulphonate), just before inoculating anthers on C17 medium. The rate of callus formation increased in the anthers treated with 50R and 100R of X-ray, and 0.05, 0.1 and 0.2M of EMS.

複合運送證券의 法制化 및 標準化 方案

朴光根(Park Kwang Geun) 한국무역학회 1994 貿易學會誌 Vol.19 No.1

연구논문 : 자연과학 ; 바이오에탄올 생산 유망작물 단수수 유전자원의 특성

박광근 ( Kwang Geun Park ) 한국국제농업개발학회 2012 韓國國際農業開發學會誌 Vol.24 No.1

Major characters of 100 sweet sorghum germplasms which had been collected from foreign countries were investigated to study the possibility of bioethanol production by sweet sorghum cultivation and select excellent varieties in Korea. Averages of culm length, ear length, the number of nodes, stem diameter, fresh weight yield, and growth duration from seeding to heading were 217 cm, 23 cm, 10.5, 17 mm, 36 t ha-1, and 71 days, respectively. Sugar content, which has a great effect on bioethanol, ranged from 3.8 to 20.8 Brix (average 12.5 Brix). Sugar contents of selected two varieties were more than 20 Brix. Dry weight yield ranged from 1 to 44 t ha-1 (average 10 t ha-1). Dry weight yields of selected three varieties were more than 30 t ha-1. Culm length showed highly significant positive correlation with the number of nodes, stem diameter, fresh weight yield, dry weight yield, and growth duration from seeding to heading. Sugar content showed highly significant positive correlation with growth duration from seeding to heading. The number of nodes showed highly significant positive correlation with culm length, stem diameter, fresh weight yield, dry weight yield, and growth duration from seeding to heading. Growth duration from seeding to heading showed highly significant positive correlation with all the characters except ear length.

호밀 染色體를 添加한 밀의 染色體 變異 및 作物學的 特性

Kwang Geun Park(朴光根),Wan Shik Ahn(安完植),Han Sun Hur(許翰淳) 한국육종학회 1989 한국육종학회지 Vol.21 No.2

This study was conducted to introduce the useful agronomic characteristics of rye into wheat. Primary triticale was obtained from a intergeneric hybridization between Triticum aestivum cv. Chugoku 81 and Secale cereale cv. Kyeonggi Jaerae. The somatic chromosome numbers of BC² F₁ populations which backcrossed with wheat two times to the primary triticale were ranged from 35 to 47. Rye chromosome di-addition wheat lines appeared the percentage of 3. 6 after the spontaneous selfing of mono-addition wheat lines and only 12. 7 percentages of these di-addition lines maintained same chromosome number to the next generation. The added rye chromosomes in pollen mother cell were easily eliminated during the meiosis. Rye chromosome addition wheat lines showed no distinct differences in morphology in comparison to wheat. It was considered that one rye chromosome, either mono or di-addtion, could not much effects to wheat phenotype.

일반답과 간척지에서 재배된 밀의 생육과 수량 및 품질의 차이

조광민 ( Kwang Min Cho ),김경훈 ( Kyeong Hoon Kim ),손재한 ( Jae Han Son ),박종철 ( Jong Chul Park ),정영근 ( Young Keun Cheong ),박광근 ( Kwang Geun Park ),박철수 ( Chul Soo Park ),강천식 ( Chon Sik Kang ) 전북대학교 농업과학기술연구소 2014 농업생명과학연구 Vol.45 No.1

본 연구는 간척농지를 활용하기 위하여 국내 주요 밀 품종을 일반답과 간척지에서 재배하였을 때 농업형질과 수량 및 품질 변화를 구명하기 위하여 수행하였다. 시험기간 중간척지의 토양 염 농도는 0.03∼1.98%를 유지하였고 일반논에 비하여 염 농도가 매우 높았다. 국내 밀 품종은 간척지에서 재배시 출현율, 생존율이 낮으며 출수기와 성숙기가 늦었고, 식물체의 간장이 짧았다. 또한, 단위면적당 경수, 수당립수가 적어 최종적인 수량도 적게 나타났다. 품종중에서는 생육이 많이 저해되나, 연백밀이 다른 품종보다 비교적 염해에 저항성이 강하여 발아율과 생존율이 가장 높고, 경수와 천립중이 많아 조곡중이 가장 높았다. 밀가루 품질을 평가한 결과에서도 간척지에서 재배하였을 때 회분함량이 크게 증가하게 되고 단백질의 질적 특성이 떨어지는 것으로 나타났다. 간척지에서 밀의 안정적인 생육과 고품질 원맥생산을 위해서는 염해에 강한 품종 육성과 피해를 경감 시킬 수 있는 재배법에 대한 연구가 진행되어야할 것으로 판단된다. This study was conducted to diversely utilize the reclaimed tidal land, cultivate major Korea wheat varieties in paddy field and reclaimed tidal land, and to identify wheat`s agronomic traits, yield and quality changes. During test periods, salt concentration of reclaimed tidal land soil was maintained from 0.03 to 1.98% and was vary high compared with that in the paddy field. When cultivating Korean wheat varieties in reclaimed tidal land, the emergence ratio and survival ratio were low and the heading date and ripening period were late and clum length in plant was short. Also, final yield was small because of number of kernels per m2 and number of grains per panicle was decreased. Even though all varieties had salt damages and consequently the growth was decreased. Korean wheat cultivar “Younbaekmil” showed highest survival ratio because of relatively strong resistance against salt damage and showed highest unhulled grain weight because of lots of kernels and 1000 grain weight. Additionally, in wheat flour quality evaluation results, ash contents greatly increased and proteins quality characteristics were decreased. For stable wheat growth and high-quality row wheat production in reclaimed tidal land, studies about varieties cultivation which are strong against salt damage and about cultivation methods which could reduce the damages are considered to be required.

서남부 간척지에서 벼 담수표면산파재배시 토양 염농도별 적정 파종량

백남현,최원영,고종철,박홍규,남정권,박광근,김상수,김보경,김정곤,Back, Nam-Hyun,Choi, Weon-Young,Ko, Jong-Cheol,Park, Hong-Kyu,Nam, Jeong-Kweon,Park, Kwang-Geun,Kim, Sang-Su,Kim, Bo-Kyeong,Kim, Choung-Kon 한국작물학회 2006 한국작물학회지 Vol.51 No.suppl1

서남부 간척지에서 벼 담수표면산파재배시 토양 염분농도별 적정 파종량을 구명하고자 $2003{\sim}2004$년에 걸쳐 호남 농업 연구소 계화도출장소 시험포장인 문포통(세사양토)의 저영답(토양 염농도 0.1%)과 중염답(토양 염농도 0.3%)에서 서간벼를 공시하여 파종량별 입모수, 생육, 수량 및 백미 외관 품위 등을 검토한 결과를 요약하면 다음과 같다. 1. 입모수는 중염답보다 저염답에서 파종량이 증가할수록 많았다. 2. 간장과 수장은 중염답이 저염답보다 파종량이 증가할 수록 짧았으며, 도복은 토양염농도에 상관없이 파종량이 증가할수록 심했다. 3. 완전미 수량은 저염답에서는 파종량 5 kg/10a까지, 중염답에서는 파종량 7 kg/10a까지는 증가되었으나 그 이상의 파종량에 서는 수량이 증가하지 않았다. 4. 백미의 외관상 품위는 파종량이 증가할수록 저염답보다 중염답에서 완전미율이 낮았다. 5. 따라서 서남부 간척지에서 벼 담수표면산파재배시 입모, 벼 생육, 완전미 수량 및 백미의 외관상 품위 등을 고려할 때 적정 파종량은 저염답은 $5{\sim}7kg/10a$, 중염답은 $7{\sim}9kg/10a$이 적당할 것으로 생각된다. This study was conducted to establish the optimum seeding rate in different soil salinity level for yield stability of broadcasting on flooded paddy surface to the reclaimed saline land of south-western part at Gyehwado substation of the Honam Agricultural Research institute in $2003{\sim}2004$. Soeganbyeo was tested in the Munpo series (fine sand loam) the results obtained is as follows: As seeding rate was higher, the number of seeding stand was increased and the number of seeding stands in the low salinity field is sharply increased than those of the medium salinity field. The length of culm in medium salinity field tends to be shorter than that of the low salinity field and as seeding rate was increased, the lodging is severe. The milled rice yield was increased as up to 9 kg/10a in low and medium salinity soil. Complete rice was no significantly increased over 5 kg/10a seeding rate in low salinity field and over 7 kg/10a seeding rate in medium salinity field. Considering the yield of milled and complete rice, seeding stand and lodging, The proper seeding rate is $5{\sim}7kg/10a$ in low salinity and $7{\sim}9kg/10a$ in medium salinity for broadcasting on flooded paddy surface at the reclaimed saline land of southwestern part.

서남부 간척지에서의 고품질 쌀 생산을 위한 적정 질소시비량

백남현,최원영,고종철,남정권,박홍규,정진일,김상수,박광근,Back Nam-Hyun,Choi Weon-Young,Ko Jong-Cheol,Nam Jeong-Kwon,Park Hong-Kyu,Choung Jin-Il,Kim Sang-Su,Park Kwang-Geun 한국작물학회 2005 한국작물학회지 Vol.50 No.suppl1

This study was carried out to investigate the proper nitrogen fertilizer level at reclaimed saline land in the southwestern area of Korea from 2002 to 2004. The rice cultivars tested were Samcheonbyeo(Early maturing one), Nampyeongbyeo (Medium maturing one) and Hwaseongbyeo(Mid-late maturing one). The results aye summarized as follows: The more the nitrogen level, the more number of panicle and spikelet per unit area was. But, ripened grain rate and 1000-grain weight were decreased at higher nitrogen level. As higher nitrogen level, head rice rate was decreased and protein content was increased. But, amylose content wasn't differ among the nitrogen fertilizer application levels. As increase nitrogen level in head rice yield increased up to 12 kg/10a, 11 kg/10a, in Samcheonbyeo, Hwaseongbyeo and Nampyeongbyeo, respectively. But there wasn't different more than it. Consequently, considering the yield of head rice, ripened grain rate and rice quality. The proper nitrogen fertilizer application level was 11-12 kg/10a at reclaimed saline land in the southwestern area of Korea. 서남부 간척지에서 고품질 쌀 생산을 위한 생태형별 적정 질소시비량을 구명하고자 2003년과 2004년에 호남농업연구소 계화도출장소 시험포장 문포통(세사양토, 토양 염농도 $0.1\%$)에서 삼천벼, 화성벼, 남평벼를 공시하여 질소시비량에 따른 벼 생육, 수량구성요소, 수량 및 품질 관련형질을 검토한 결과를 요약하면 다음과 같다. 1. 단위면적당 수수와 영화수는 질소시비량이 증가할수록 많았으나 등숙비율이 낮았으며 현미천립중도 가벼웠다. 2. 백미의 완전립비율은 질소시비량이 많을수록 낮아졌고, 단백질 함량은 질소시비량이 증가됨에 따라 다소 높아지는 경향이었으나 아밀로스함량은 질소시비량간에 별 차이가 없었다. 3. 완전미 수량은 삼천벼가 질소 12/10a수준까지, 화성벼와 남평벼는 11/10a 수준까지는 증수되었으나 그 이상의 질소시비량에서는 수량차이가 인정되지 않았다. 4. 따라서 서남부간척지에서 벼 기계이앙재배시 완전미 수량, 등숙비율 및 미질 등을 고려한 10a당 적정 질소시비량은 $11\~12$으로 판단된다.

남부지역 논에서 사료맥류, 조생종 벼 및 하파귀리를 활용한 삼모작 작부체계 연구

송태화,박태일,박형호,조상균,오영진,장윤우,노재환,박광근,강현중,Song, Tae-Hwa,Park, Tae-Il,Park, Hyong-Ho,Cho, Sang-Kyun,Oh, Young-Jin,Jang, Yun-Woo,Rho, Jea-Hwan,Park, Kwang-Geun,Kang, Hyeon-Jung 한국초지조사료학회 2014 한국초지조사료학회지 Vol.34 No.4

이 연구는 남부지역 논에서 동계 사료맥류, 하계 조생종 벼, 추계 하파귀리 등 삼모작 재배기술을 확립하기 위해실시하였다. 월동 사료작물을 조생종 벼인 조평벼의 이앙시기에 맞춰 4월 30일 1차 수확한 처리구와 사료맥류의 수확기인 5월 30일에 수확한 처리구 모두 곡우호밀이 각각 생초수량 32.0톤/ha과 42.3톤/ha, 건물수량이 5.8톤/ha과 16.5톤/ha로 다른 작물에 비해 높은 수량을 보였다. 하계 조평벼는 5월 6일에 1차 이앙한 처리구보다 6월 4일에 2차 이앙한 처리구에서 등숙비율이 떨어지고 수량도 약 22% 감소하여 조기 이앙이 유리한 것으로 나타났다. 틈새작물로 재배한 하이스피드 귀리는 8월 28일에 1차 파종한 귀리는 10월 10일에 출수하였지만 9월 2일에 입모중으로 2차 파종한 귀리는 출수도 하지 못하였으며 1차 파종에 비해 건물수량과 TDN 수량 모두 50%를 못 미치는 결과를 나타내어 파종이 빠를수록 유리한 것을 알 수 있었다. 따라서 남부지역에서 삼모작을 하기 위해서는 호밀을 재배하여 4월 30일 전에 수확한 후 조평벼의 조기 이앙과 하이스피드 귀리의 적기 파종이 쌀 수량과 조사료 수량 확보에 유리한 것으로 사료되었다. This experiment was undertaken to develop triple cropping systems for winter cereal crops for forage, early maturing rice and oats, and to select a winter forage crop in order to determine rice transplanting time at paddy fields in the southern region. Also, the productivity and feed value of the resulting forage crops were examined. When winter cereal crops used for forages are first harvested at the early maturing rice transplanting period, and again harvested during the winter forage crop harvesting period, the fresh yield and dry matter yield of rye were 32.0, 42.3 ton/ha and 5.8, 16.5 ton/ha, respectively, demonstrating higher yields than other winter crops. The early maturing rice, 'Jopyeong', transplanted on June 4 had a lower percentage of ripened grain compared to those transplanted on May 6, and milled rice yield transplanted on June 4 was also decreased by 22%. Thus, the results showed that early transplanting was profitable. Regarding the oats grown during the fall cropping season, the heading date for the oats sown first was on October 10, but the heading was not observed in those sown later. Dry matter yield and TDN yield of the second sowing was less than 50% compared to the first. Consequently, rye may be the most suitable winter forage crop for triple cropping systems. Early transplanting of 'Jopyeong' after rye harvesting before April 30 in addition to timely sowing of oats in the fall season would be profitable for rice and forage production using triple cropping systems in the southern region.

단수수 착즙액으로부터 에탄올 생산을 위한 반응표면분석법을 이용한 효모 발효조건 최적화

차영록(Cha, Young-Lok),박유리(Park, Yu-Ri),김중곤(Kim, Jung-Kon),최용환(Choi, Yong-Hwan),문윤호(Moon, Youn-Ho),박선태(Bark, Surn-Teh),안기홍(An, Gi-Hong),구본철(Koo, Bon-Cheol),박광근(Park, Kwang-Geun) 한국신재생에너지학회 2011 신재생에너지 Vol.7 No.4

Optimization of initial total sugar concentration of sweet sorghum juice, aeration time and aeration rate on ethanol production was performed by response surface methodology (RSM). The optimum conditions for ethanol production from concentrated sweet sorghum juice were determined as follows: initial total sugar concentration, 21.2 Brix; aeration time, 7.66h; aeration rate, 1.22 vvm. At the optimum conditions, the maximum ethanol yield was predicted to be 91.65% by model prediction. Similarly, 92.98% of ethanol yield was obtained by verification experiment using optimum conditions after 48 h of fermentation. This result was in agreement with the model prediction.