인도네시아의 옥수수 생산 및 생산성 제한 요인

백성범 ( Seong-bum Baek ),손범영 ( Beom-young Son ),김정태 ( Jung-tae Kim ),이진석 ( Jin-seok Lee ),배환희 ( Hwan-hee Bae ),김상곤 ( Sang Gon Kim ),이상규 ( Sang-kyu Lee ),이병무 ( Byung-moo Lee ),서민정 ( Min-jung Seo ),박장환 ( 한국국제농업개발학회 2015 韓國國際農業開發學會誌 Vol.27 No.5

동남아시아 주요 옥수수 생산국인 인도네시아의 옥수수 생산과 생산성 제한 요인에 대하여 조사·분석한 결과는 다음과같다. 1. 인도네시아는 북위 5°에서 남위 10°사이에 위치하여 연중 열대성 기후를 보이며 건기와 우기의 구별이 뚜렷하다. 2. 옥수수 재배면적은 약 4,000천ha 정도이며 생산량은 2009년 이후로 17,000천톤 이상을 유지하고 있다. 그 가운데 수확면적과 생산량의 약 50%를 Jawa섬이 차지하고 있다. 2014년 단위 면적당 생산성은 4.95ton/ha로 1980년대에 비하여 약 3배 증가하였으나 지역적으로는 2.5 ~ 7.32ton/ha의 변이를 보여 지역 간 차이가 심하다. 3. 생물적 생산성 제한요인은 downy mildew (Peronosclerospora),maydis leaf blights (Helminthosporium spp.), leaf spots (Curvularia spp.), rusts (Puccinia polysora), stalkand ear rots (Fusarium spp., Diplodia spp.), banded leafand sheath blight (BLSB, Rhizoctonia solani) 등의 병과 바구미(Sitophilus spp.), shoot flies (Atherigona spp.), Asiancorn borers (Ostrinia furnacalis), 멸강충(Mythimna spp.),corn ear worm (Helicoverpa spp.) 등의 충이나, 가장 큰 영향을 주는 요인은 downy mildew이다. 4. 비생물적 생산성 제한요인은 토양의 산성화에 따른 척박토양과 관개가 자유롭지 못한 전작 지대의 한발피해 등이며, 경제ㆍ사회적 제한요인으로는 비료, 농약 등 농자재 투입 비용과 hybrid종자 가격 등이다. 5. 인도네시아에 적응하는 품종 개발 시 생산성 제한 요인을 극복하기 위한 주요 타겟 형질은 환경 스트레스 내성으로서, 특히 downy mildew 저항성과 내산성, 내건성이 요구된다. Indonesia, which located at between five degree north latitude and ten degree south latitude, have distinct dry and rainy season as tropical climate. After 2009, area of maize cultivation isapproximately 4,000,000 ha, and production of maize is maintained over 17,000,000 ton. Jawa island has possessed about 50% of harvest area and production. In 2014, yield per unit area as 4.95 ton/ha, is 3 times increase compared to 1980’s. However, it shows severe regional difference because productivity variation is 2.5 ~ 7.32ton/ha territorially. Major constraints of maize production in Indonesia are; As biotic stress factors, diseases such as downy mildew (Peronosclerospora), maydis leaf blights (Helminthosporium spp.), leaf spots (Curvularia spp.), rusts (Puccinia polysora), stalk and ear rots (Fusarium spp., Diplodia spp.), and banded leaf and sheath blight (BLSB, Rhizoctonia solani), insects such as a genus of weevils (Sitophilus spp.), shoot flies (Atherigona spp.), asian corn borers (Ostrinia furnacalis), armyworm (Mythimna spp.), and corn ear worm (Helicoverpa spp.) are popular. Among them, the most major constraint is downy mildew. As abiotic stress factors, low soil fertility and drought stress is major effect on yield decrease. As business and social factors, major constraints are agro-materials (including fertilizer and pesticide) costs and hybrid seed price. To overcome these constraints during varieties are developed, main target trait is environment stress resistance. Especially, it seems that downy mildew resistance, acid resistance and drought resistance will be improved.

한국 옥수수 품종 개발의 변천과 전망

백성범(Seong-Bum Baek),손범영(Beom-Young Son),김정태(Jung-Tae Kim),배환희(Hwan-Hee Bae),고영삼(Young-Sam Go),김선림(Sun-Lim Kim) 한국육종학회 2020 한국육종학회지 Vol.52 No.S

In Korea, native or open pollinated corn varieties that were not improved before 1960 were cultivated. The 1960s was a step that created the foundation for the development of varieties. In 1962, systematic corn breeding was started when the synthetic type ‘Hwangok 2’ was distributed to farmers. The 1970s was the era of the change from synthetic varieties to hybrid ones, with a focus on the development of single-cross hybrids among the corn hybrids. The single-cross corn hybrid, ‘Suwon 19’, was an epoch-marking variety that had a unit-yield closer to that of advanced countries. The 1980s was a time when the breeding direction was changed from grain corn to silage because the corn cultivation area for silage increased rapidly with the government s livestock promotion policy, and the corn seed supply system of single-cross hybrids was established. In the 1990s, the era of globalization and the launching of imports of agricultural products, the living standards of consumers became more advanced, and the development system of corn varieties was established for various use purposes. As we entered the 2000s, it started the heyday of developing corn varieties, with 29 corn varieties of various use purposes and excellent cultivation stability developed. In the 2010s, the scope of corn variety development expanded from government or universities to private seed companies. Thus, the corn varieties in Korea have changed and developed in response to the situation of the times, and there are currently 110 corn varieties registered with Korea Seed & Variety Service (KSVS). In the future, vegetable corn is expected to be continuously developed, with functional ingredients such as strengthening vitamins, trace elements, and antioxidant components. Specialized grain corn, such as lysine and maltodextrin, will be developed and commercialized in order to improve the value added. In the case of silage corn, there will be varieties of early maturing and late planting adaptability, with no more than 110 days until maturity, suitable for the cropping system, such as second cropping and double cropping, as well as high digestion rate and nutrition varieties with high feed value, and excessive water tolerance corn varieties that adapt well to paddy fields. Furthermore, it is expected that corn varieties that adapt well to Southeast Asia, Latin America, and Africa will continue to be developed and supplied.

다수성 종실 옥수수 신품종 '안다옥'의 생육특성과 수량성

손범영,백성범,김정태,이진석,구자환,권영업,허창석,박종열,Son, Beom Young,Baek, Seong Bum,Kim, Jung Tae,Lee, Jin Seok,Ku, Ja Hwan,Kwon, Young Up,Huh, Chang Suk,Park, Jong Yeol 한국초지조사료학회 2013 한국초지조사료학회지 Vol.33 No.1

Andaok, a new single cross variety, is a yellow dent maize hybrid (Zea mays L.) developed by the maize breeding team at the National Institute of Crop Science (NICS), RDA in 2011. This hybrid, which has a high yield of grain, was produced by crossing two inbred lines, KS161 and KS162. KS161 is the seed parent and KS162 is the pollen parent of Andaok. Silking date of Andaok is 3 days later than that of the check hybrid, Jangdaok. Plant height of Andaok is longer than that of Jangdaok. Ear numbers per 100 plants of Andaok is more than that of Jangdaok. Ear length of Andaok is shorter than that of Jangdaok. The weight of 100 seeds of Andaok is heavier than that of Jangdaok. It has moderate resistance to southern corn leaf blight (Bipolaris maydis), black streaked dwarf virus (BSDV) and corn borer. It has strong resistance to northern corn leaf blight (Exserohilum turcicum). It has resistance to lodging. Andaok was evaluated for its yield of grain at three locations from 2009 to 2011. The grain yield of Andaok was 7.80 ton/ha. Seed production of Andaok has gone well due to a good match during crossing between the seed parent, KS161, and the pollen parent, KS162, in Yeongwol. 안다옥은 자식계통 KS161과 KS162의 교잡으로 육성된 다수성인 단교잡종이다. 2007~2008년 생산력검정시험을 거쳐, 2009~2011년 3년 동안 3지역에서 지역적응시험을 실시한 결과 그 우수성이 인정되어 2011 농작물 직무육성 신품종선정위원회에서 신규 우량품종으로 결정되었다. 이 품종의 주요특성을 요약하면 다음과 같다. 안다옥의 종피색은 황색이며 입질은 마치종이다. 출사일수는 종실용 옥수수 대비품종인 장다옥보다 3일 늦다. 간장은 장다옥보다 길며, 100주당 이삭수는 장다옥보다 많았다. 이삭길이는 장다옥보다 짧으며, 100립중은 장다옥보다 무거웠다. 깨씨무늬병, 검은줄오갈병 및 조명나방에 중정도의 저항성을 보이며, 그을음무늬병에는 강한 편이다. 도복에는 장다옥과 비슷한 정도로 강하였다. 종실수량은 7.8톤/ha로 장다옥보다 많았다. 4:1 (모판 : 부본) 재식비율에서 동시 파종하여 채종한 결과 모본의 출사기와 부본의 화분비산기간이 잘 일치하였다.

종실용 옥수수 신품종 '신광옥'의 생육특성과 수량성

손범영,백성범,김정태,이진석,황종진,김선림,정건호,권영업,허창석,박종열,Son, Beom Young,Baek, Seong Bum,Kim, Jung Tae,Lee, Jin Seok,Hwang, Jong Jin,Kim, Sun Lim,Jung, Gun Ho,Kwon, Young Up,Huh, Chang Suk,Park, Jong Yeol 한국초지조사료학회 2014 한국초지조사료학회지 Vol.34 No.1

신광옥은 다수성 사료용 옥수수 품종 개발을 목표로 2012년에 농촌진흥청 국립식량과학원에서 자식계통 KS172과 KS173을 교잡하여 육성한 다수성 단교잡종이다. 신광옥의 종피색은 황오렌지색이며 입질은 중간종이다. 신광옥은 2008~2009년 동안 생산력검정시험을 거쳐 2010~2012년까지 3지역에서 지역적응시험을 실시하였다. 그 결과 우수성이 인정되어 2012 농작물 직무육성 신품종으로 결정되었고 신광옥으로 명명하였다. 신광옥의 출사일수는 대비품종인 장다옥과 비슷하다. 간장은 장다옥과 비슷하나 착수고율은 장다옥보다 낮고 도복은 장다옥과 비슷한 정도로 강하다. 100주당 이삭은 장다옥보다 17개 더 많고 이삭길이는 장다옥과 비슷하며, 100립중은 장다옥과 비슷하다. 깨씨무늬병 저항성은 중강이며, 그을음무늬병에는 강한 편이다. 검은줄 오갈병, 이삭썩음병 및 조명나방 저항성은 중 정도이다. 신광옥의 종실수량은 7.8 톤/ha로 장다옥과 비슷하다. 4 : 1(모본 : 부본) 재식비율로 동시 파종하여 채종 시험한 결과 종자친(모본) 출사기와 화분친(부본) 화분비산기간이 일치하였으며 채종수량은 3.84 톤/ha이었다. 신광옥은 전국적으로 재배가 가능하다. Singwangok, 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, consisting of a high yield of grain, was produced by crossing two inbred lines, KS172 and KS173. KS172 is the seed parent and KS173 is the pollen parent of Singwangok. It is a yellow-orange intermediate maize hybrid (Zea mays L.). After the preliminary yield trial and advanced yield trial of Singwangok (Suwon185) in Suwon for 2 years, the regional yield trial of that was subsequently carried out for its growth characteristics and yield at 3 different locations from 2010 to 2012. It was named as Singwangok. The silking date of Singwangok is similar to the check hybrid, Jangdaok. The plant height of Singwangok is similar to Jangdaok, but its ear height ratio is lower than that of Jangdaok. Moreover, it has a resistance to lodging. The ear number per 100 plants of Singwangok is more 17 than that of Jangdaok, whereas the ear length of Singwangok is similar to Jangdaok. Further, the weight of 100 seeds of Singwangok is similar to Jangdaok. It has a moderate resistance to southern leaf blight (Bipolaris maydis) and a strong resistance to northern leaf blight (Exserohilum turcicum). Furthermore, it has a moderate resistance to the black streaked dwarf virus (BSDV), ear lot and corn borer. The grain yield of Singwangok, 7.81 ton/ha, was similar to that of Jangdaok. The seed production of Singwangok was well processed due to the good match during crossing between the seed parent, KS172 and the pollen parent, KS173, in Yeongwol; the F1 seed yield was 3.84ton/ha. Singwangok would be a suitable cultivar to all plain areas in Korea.

논과 밭에서 파종기에 따른 사일리지용 옥수수의 일반생육 및 수량 비교

손범영(Beom-Young Son),김정태(Jung-Tae Kim),이진석(Jin-Seok Lee),백성범(Seong-Bum Baek),김욱한(Wook-Han Kim),김종덕(Jong-Duk Kim) 한국초지조사료학회 2010 한국초지조사료학회지 Vol.30 No.3

본 연구는 논에서의 파종기에 따른 사일리지용 옥수수의 생육특성 및 수량을 비교 분석할 뿐 아니라 논과 밭의 생육특성 및 수량도 비교 분석하고자 수행하였다. 논에서의 파종기에 따른 사일리지용 옥수수의 출사일수는 4월 22일 파종기에 81일, 5월 20일 파종기에 70일, 6월10일 파종기에 62일로 파종기가 늦어짐에 따라 출사일수는 짧아졌다. 논과 밭 간의 출사일수는 차이가 없었다. 논에서의 간장은 4월 22일 파종기와 5월 20일 파종기 간 차이는 없었으나 6월 10일 파종기에 간장이 급격히 줄어드는 결과를 나타내었다. 논과 밭 간의 간장은 차이가 없었다. 논에서의 파종기에 따른 도복은 차이가 없었으나, 논과 밭 간의 도복은 차이가 있었다. 논에서 파종기에 따른 후기녹체성의 차이는 없었으며 논과 밭 간의 차이도 없었다. 논에서 파종기에 따른 암이삭 비율이 파종기가 늦어짐에 따라 암이삭 비율이 낮아지는 경향이었다. 논과 밭 간의 암이삭 비율 차이는 없었다. 논에서의 파종기에 따른 사일리지용 옥수수의 생초수량은 파종기가 늦어짐에 따라 4월 22일 파종기에 비하여 각각 15%, 32% 감소하였다. 논과 밭 간의 생체수량은 차이가 없었다. 건물수량은 5월 20일 파종기가 4월 22일 파종기에 비하여 각각 9% 증가하였으나, 6월 10일 파종기는 4월 22일 파종기에 비하여 24% 감소 하였다. 논의 건물수량이 밭에 비해 9% 감소하였다. TDN 수량은 5월 20일 파종기가 4월 22일 파종기에 비하여 각각 5% 증가하였으나, 6월 10일 파종기는 4월 22일 파종기에 비하여 28% 감소하였다. 그리고 논의 TDN 수량은 밭에 비해 11% 감소하였다. This study was conducted to evaluate growth characteristics and yield of silage corn hybrids by different planting dates at paddy and upland field. Days to silking by different planting dates at paddy field were 81 days at planting on April 22, 70 days on May 20 and 62 days on June 10, respectively, and they were getting shorter as planting date delayed. There was no significant difference in days to silking between paddy and upland field. Plant height in paddy field was no significant difference between at planting on April 22 and on May 20, and it was shortened sharply at planting on June 10. There was no significant difference in plant height between paddy and upland field. There was no significant difference in lodging by different planting dates in paddy field. There was significant difference in lodging between paddy and upland field (P<0.05). There was no significant difference in stay-green by different planting dates in paddy field, and no significant difference between paddy and upland field. Ear ratios to total dry matter in paddy field were 43% at planting on April 22, 41% on May 20 and 28% on June 10, respectively, and it was lower as planting date delayed. There was no significant difference in ear ratios to total dry matter between paddy and upland field. Fresh yields in paddy field were lower with 14% at planting on May 20 and 32% on June 10 compared to on April 22 as planting date delayed. There was no significant difference in fresh yield between paddy and upland field. Dry matter yields in paddy field were higher with 9% at planting on May 20 and lower with 24% on June 10 compared to at planting on April 22 as planting date delayed. Dry matter yield in paddy field was lower with 9% compared to 1,931 ㎏/10a at planting on April 22. TDN (Total digestible nutrients) yields in paddy field were higher with 5% at planting on May 20 and lower with 28% on June 10 compared to at planting on April 22 as planting date delayed. TDN yield in paddy field was lower with 11% compared to 1,340㎏/10a at planting on April 22.

파종시기에 따른 국내 육성 사일리지용 옥수수의 수량 및 사료가치의 품종간 비교

손범영(Beom-Young Son),김정태(Jung-Tae Kim),송송이(Song-Yi Song),백성범(Seong-Bum Baek),김정곤(Chung-Kon Kim),김종덕(Jong-Duk Kim) 韓國草地學會 2009 한국초지조사료학회지 Vol.29 No.3

본 시험은 최근 육성된 국내 사일리지용 옥수수 품종들의 파종기에 따른 수량 및 사료가치를 분석하고자 수행하였다. 국내산 옥수수의 파종일에서 출사일까지의 출사일수는 수원169호와 P3394가 62일로 가장 짧았으며 강다옥이 68일로 가장 길었다. 청안옥이 다른 품종보다 도복에 더 강하였으며 후기녹체성은 광평옥, 강다옥이 다른 품종보다 더 우수하였다. 암이삭 비율은 강다옥을 제외한 품종들은 수입종인 DK697과 P3394와 비슷하였지만 대체로 낮은 것으로 나타났다. 5월 3일과 5월 21일 파종기의 암이삭 비율은 46%, 45%로 비슷하였으나 6월 11일 파종기에는 41%로 낮았다. 생초수량은 강다옥이 가장 높았으며 그 외 품종들은 비슷한 생초수량을 나타내었다. 건물수량은 청안옥을 제외한 다른 국산 품종들은 DK697과 P3394와 비교해 볼 때 비슷하였다. 가소화영양소총량 (TDN) 수량은 품종간 차이는 없었다. 5월 3일과 5월 21일 파종기의 생초수량, 건물수량 및 가소화영양소총량 등은 비슷하였으나 6월 11일 파종기에는 생초수량, 건물수량 및 가소화영양소총량 등이 감소하였다. ADF는 품종간의 차이는 없었으며 범위는 44.2∼46.2%였다. 파종시기가 늦어짐에 따라 함량은 증가하는 경향이었지만 유의한 차이는 없었다. NDF는 품종간의 차이는 없었으며 범위는 58.1∼59.9%였다. 파종시기가 늦어짐에 따라 ADF와는 반대로 감소하는 경향이었지만 유의한 차이는 없었다. 가소화건물 (DDM)은 품종간의 차이는 없었으며 범위는 52.9∼54.5%였다. 파종시기가 늦어짐에 따라 함량은 감소하는 경향이었지만 유의한 차이는 없었다. 건물섭취량 (DMI)은 2.0∼2.1%로 품종간의 차이는 없었으며 또한 파종기간 차이도 없었다. RFV는 P3394가 가장 낮았으며 이를 제외한 다른 품종들은 84.1∼85.0로 유의한 차이는 없었다. 이상의 시험결과를 볼 때 광평옥 등 국내 육성 사일리지용 옥수수 품종은 생산성과 사료가치 면에서 수입품종과 비슷하거나 우수하였다. This study was conducted to evaluate yield and forage quality of domestic silage corn hybrids at different planting dates. Days to silking of Suwon169 and P3394 were 62 days, respectively, the shortest among corn hybrids and Gangdaok was the longest. Cheonganok was more resistant to lodging than other hybrids. Kwangpyeongok and Gangdaok were more excellent to stay-green than other hybrids. Ear ratios to total dry matter of other domestic hybrids except Gangdaok were similar with those of DK697 and P3394. Ear ratios to total dry matter were similar in planting dates, May 3 and May 21 with 46% and 45% but June 11, low with 41%. Fresh yield of Gangdaok was the highest of all hybrids and other hybrids except Gangdaok were similar. Dry matter (DM) yields of domestic hybrids except Cheonganok were similar to those of DK697 and P3394. Total digestible nutrients (TDN) yields of domestic hybrids were no significant difference compared with those of DK697 and P3394. Fresh yield, DM yield and TDN yield of all hybrids were similar in planting dates, May 3 and May 21 but those of all hybrids were reduced in planting date, June 11 compared with May 3 and May 21. All hybrids were no significant difference in acid detergent fiber (ADF) which had values ranging from 44.2~46.2%. All hybrids were no significant difference in neutral detergent fiber (NDF) which had values ranging from 58.1~59.9%. There were no significant differences in ADF and NDF according to planting dates. Relative feed value (RFV) of P3394 was the lowest of all hybrids. Other hybrids except P3394 had values ranging from 84.1~85.0 and was no significant difference in RFV. It is concluded that domestic hybrids tested in this study have high forage quality as well as high production similar to those of imported corn hybrids.

재배지역별 사일리지용 옥수수 일반생육 및 수량반응

손범영(Beom-Young Son),김정태(Jung-Tae Kim),이진석(Jin-Seok Lee),백성범(Seong-Bum Baek),김욱한(Wook-Han Kim),김종덕(Jong Duk Kim),고기환(Ki Hwan Ko) 한국초지조사료학회 2011 한국초지조사료학회지 Vol.31 No.3

본 연구는 재배지역별 국내 육성 사일리지용 옥수수의 생육특성 및 수량성을 비교하고자 중북부 서해안지대에 속한 경기 화성, 중남부 서해안에 속한 충남 당진, 남부 서해안에 속한 전북 고창, 고랭지에 속한 강원 평창에서 2009년에 수행하였다. 시험품종은 국내종인 광평옥, 강다옥과 국내 주요 수입종인 P3394, 32P75 등 4개 품종이었다. 화성지역의 모든 품종의 출사일수가 80일이 넘었으며 생체수량, 건물수량 및 TDN 수량은 광평옥과 강다옥이 P3394와 32P75 보다 많았다. 당진지역의 모든 품종의 출사일수가 70일 범위였으며 생체수량은 광평옥이 가장 많았으며 건물수량 및 TDN 수량은 품종간 차이가 없었다. 고창지역의 모든 품종의 출사일수가 60일 범위였으며 생체수량은 강다옥이 가장 많았으며 건물수량 및 TDN 수량은 품종간 차이가 없었다. 평창지역의 모든 품종의 출사일수가 97~104일 범위였으며 생체수량은 P3394가 가장 적었으며 건물수량 및 TDN 수량은 강다옥과 32P75가 가장 많았다. 본 시험에서 화성 등 4 지역을 종합 검토해 볼 때 간장과 착수고율은 품종간 차이는 없었다. 도복은 광평옥이 가장 강하였고, 다fms 품종들은 비슷하였다. 후기녹체성은 모든 품종들이 우수하였다. 깨씨무늬병은 시험품종 모두 발병률이 낮았으며, 검은줄오갈병은 32P75가 10.1%로 가장 많았으며 광평옥과 강다옥이 32P75 보다 상대적으로 강한 것으로 나타났다. 생체수량은 광평옥과 강다옥이 각각 ha당 74.85톤, 76.68톤으로 가장 많았고 P3394가 ha당 64.97톤으로 가장 적었다. 건물수량은 ha당 18.83톤~21.92톤, TDN 수량은 ha당 12.73톤~14.52톤 범위로 품종간 차이는 없었다. This study was carried out to compare growth characteristics and yield of silage corn hybrids at four different regions(Hwaseong, Dangjin, Gochang and Pyeongchang). Two domestic corn hybrids, 'Kwangpyeongok' and 'Gangdaok' and two imported corn hybrids, 'P3394' and '32P75' were used in this study. Plant height and ear height ratio were not significantly different among corn hybrids. 'Kwangpyeongok' was the strongest of all corn hybrids for lodging. The others except 'Kwangpyeongok' were similar to lodging. All corn hybrids were excellent to stay-green. Incidence of southern corn leaf blight(Bipolaris maydis) was low at all com hybrids. '32P75' was 10.1%, the most of all corn hybrids for incidence of BSDV (black streaked dwarf virus). 'Kwangpyeongok' and 'Gangdaok' were stronger than '32P75' for BSDV. Fresh yield of 'Kwangpyeongok' and 'Gangdaok' were the most of all com hybrids as 74.85 and 76.68 ton/ha and 'P3394' was the least of all corn hybrids as 64.97 ton/ha Dry matter yield as 18.83~21.92ton/ha and TDN yield as 12.73~14.52 ton/ha were not significantly different among corn hybrids.

사료용 옥수수 신품종 '양안옥'의 생육특성 및 수량성

손범영,백성범,김정태,이진석,구자환,김선림,정건호,권영업,지희정,허창석,박종열,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 한국초지조사료학회 2013 한국초지조사료학회지 Vol.33 No.2

양안옥은 다수성 사료용 옥수수 품종 개발을 목표로 2012년에 농촌진흥청 국립식량과학원에서 자식계통 KS164과 KS163을 교잡하여 육성한 다수성 단교잡종이다. 양안옥의 종피색은 황오렌지색이며 입질은 중간종이다. 양안옥은 2007~2008년 동안 생산력검정시험을 거쳐, 2009~2012년까지 3년간 4지역에서 지역적응시험을 실시하였다. 그 결과 우수성이 인정되어 2012 농작물 직무육성 신품종으로 결정되었고 양안옥으로 명명하였다. 양안옥의 출사일수는 대비 품종인 광평옥보다 2일 빠르다. 간장은 광평옥과 유의한 차이는 없으나 착수고율은 광평옥보다 높고 도복은 광평옥과 비슷한 정도로 강하며 후기녹체성과 이삭비율도 광평옥과 유의한 차이는 없다. 양안옥의 깨씨무늬병은 광평옥과 비슷한 중강의 저항성을 보이며, 그을음무늬병도 광평옥과 같이 강한 편이다. 검은줄오갈병, 이삭썩음병 및 조명나방도 광평옥과 같이 중 정도의 저항성을 보인다. 양안옥의 건물수량은 17.45 톤/ha이며, TDN수량은 11.96 톤/ha로 광평옥과 유의한 차이는 없었다. 양안옥의 종실수량은 8.32 톤/ha로 장다옥과 유의한 차이는 없었다. 4 : 1 (모본 : 부본) 재식비율로 동시 파종하여 채종 시험한 결과 모본의 출사기와 부본의 화분비산기간이 일치하며 채종수량은 1.79 톤/ha이었다. 양안옥은 전국적으로 재배가 가능하다. 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.

단교잡 내도복 종실용 옥수수 신품종 ‘다평옥’

손범영(Beom-Young Son),백성범(Seong-Bum Baek),김정태(Jung-Tae Kim),이진석(Jin-Seok Lee),배환희(Hwan-Hee Bae),김욱한(Wook-Han Kim),정진교(Jin-Kyo Jung),서보윤(Bo-Yoon Seo),허창석(Chang-Suk Huh),박종열(Jong-Yeol Park) 한국육종학회 2015 한국육종학회지 Vol.47 No.1

‘Dapyeongok’, a new maize F1 hybrid (Zea mays L.), is developed by the maize breeding team at the National Institute of Crop Science (NICS), RDA in 2010. The high-yielding hybrid, named ‘Dapyeongok’ was bred by crossing between two inbred lines, ‘KS158’ and ‘KS155’. It is a yellow dent maize hybrid (Zea mays L.). After preliminary yield trial and advanced yield trial of Dapyeongok in Suwon for two years, regional yield trial of that was subsequently carried out for evaluation of its growth and yield at three different locations from 2008 to 2010. The silking date of Dapyeongok is the same with that of the check hybrid, ‘Jangdaok’. The plant height of Dapyeongok is similar to Jangdaok, and its ear height ratio is the same with that of Jangdaok. It has resistance to lodging. The ear length of Dapyeongok is shorter than that of Jangdaok. The weight of 100 seeds of Dapyeongok is lighter than that of Jangdaok. It has strong resistance to northern leaf blight (Exserohilum turcicum) and southern leaf blight (Bipolaris maydis). It has moderate resistance to black streaked dwarf virus (BSDV), ear lot and corn borer. The grain yield (8.6 ton/ha) of Dapyeongok was 8% higher than that of Jangdaok. The seed production of Dapyeongok has gone well due to a good synchronization of flowering period during crossing between the seed parent, KS158, and the pollen parent, KS155, in Yeongwol and F1 seed yield was 2.8 ton/ha. Dapyeongok would be a suitable cultivar to all plain area in Korea.

내도복 반경립 종실용 옥수수 단교잡종 ‘다안옥’

손범영(Beom-Young Son),백성범(Seong-Bum Baek),김정태(Jung-Tae Kim),이진석(Jin-Seok Lee),배환희(Hwan-Hee Bae),신성휴(Seong-Hyu Shin),김선림(Sun-Lim Kim),정건호(Gun-Ho Jung),구자환(Ja-Hwan Ku),권영업(Young-Up Kwon) 한국육종학회 2016 한국육종학회지 Vol.48 No.3

‘Daanok’, a new maize F1 hybrid (Zea mays L.), is developed by the maize breeding team at the National Institute of Crop Science (NICS), RDA in 2013. The high-yielding hybrid, named ‘Daanok’ was bred by crossing between two inbred lines, ‘KS174’ and ‘KS175’. It is a yellow semi-flint maize hybrid (Zea mays L.). After preliminary yield trial and advanced yield trial of Daanok in Suwon for two years, regional yield trial of that was subsequently carried out for evaluation of its growth and yield at three different locations from 2011 to 2013. The silking date of Daanok is earlier than that of the check hybrid, ‘Jangdaok’. The plant height of Daanok is 229cm, similar to Jangdaok, and its ear height ratio is similar with that of Jangdaok. It has resistance to lodging. There are much of the No. of ear per 100 plants. The ear length of Daanok is similar with that of Jangdaok. The weight of 100 seeds of Daanok is the same with that of Jangdaok. It has strong resistance to northern leaf blight (Exserohilum turcicum) and southern leaf blight (Bipolaris maydis). It has strong resistance to ear lot. It has moderate resistance to corn borer. The grain yield (7.34 ton/ha) of Daanok was 23% higher than that of Jangdaok. The seed production of Daanok has gone well due to a good synchronization of flowering period during crossing between the seed parent, KS174, and the pollen parent, KS175, in Yeongwol and F1 seed yield was 2.38 ton/ha. Daanok would be a suitable cultivar to all plain area in Korea.