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.

강원 영서지역에서 겨울 및 여름 사료작물 이모작 시 생산성

손범영,원용재,김성국,김민태,Son, Beom Young,Won, Yong Jae,Kim, Sung Kook,Kim, Min Tae 한국초지조사료학회 2021 한국초지조사료학회지 Vol.41 No.2

본 시험은 강원 영서지역에서 겨울사료작물(IRG 및 트리티케일)과 여름사료작물(사료용 벼) 이모작 시 양질 조사료의 최대 수량 생산 작목조합을 알아보기 위해 수행하였다. 겨울사료작물의 건물률은 IRG '코윈어리'가 평균 29.6%로 트리티케일 '조성'의 평균 35.5%보다 낮았다. 평균 생체수량은 '코윈어리'가 2,662kg/10a, '조성'이 2,836kg/10a로 두 작목 간 통계적으로 유의적인 차이가 없었다. 평균 건물수량은 트리티케일 '조성(996kg/10a)'이 IRG '코윈어리'(696kg/10a)보다 많았다. 여름사료작물인 사료용 벼의 건물률은 '조농'이 평균 34.5%, '조우'가 평균 35.0%로 유의적인 차이가 없었다. 평균 생체수량은 '조우'가 5,367kg/10a로 '조농'의 3,966kg/10a보다 많았다. 또한 평균 건물수량도 '조우(1,936kg/10a)'가 '조농(1,433kg/10a)'보다 많았다. 겨울사료작물인 트리티케일 '조성'을 10월 중순에 파종하여 이듬해 5월 하순에 수확한 후 여름사료작물인 사료용 벼 '조우'를 6월 상순에 이앙하는 조합으로 2,982kg/10a의 최대 건물 생산량을 얻을 수 있었다. In order to establish optimal double cropping system for getting the maximum annual productivity, we investigated annual fresh and dry yields of winter forage crops (WFC), Italian ryegrass (IRG) 'Kowinearly', triticale 'Joseong' and summer forage crop (SFC), 'Jonong' and 'Jowoo' as whole crop silage rice in the paddy field of Yeongseo of Gangwon Province. The double cropping of each crops was applied with 2 standard cultivation method of WFC and SFC from 2018 to 2020. For the WFC, the average percentage of dry matter (29.6%) of IRG 'Kowinearly' was lower than that (35.5%) of triticale 'Joseong'. The average fresh matter yield of IR G 'Kowinearly' was 2,662kg/10a that there was no significant difference from the 2,836kg/10a of triticale 'Joseong'. The average dry matter yield (996kg/10a) of triticale 'Joseong' was more than that (696kg/10a) of IRG 'Kowinearly'. For the summer forage crops, the average percentage of dry matter of whole crop silage rice, 'Jonong' was 34.5% that there was no significant difference from the 35.0% of 'Jowoo'. The average fresh matter yield (5,367kg/10a) of 'Jowoo' was more than that (3,966kg/10a) of 'Jonong'. And the average dry matter yield (1,936kg/10a) of 'Jowoo' was more than that (1,433kg/10a) of 'Jonong'. The total maximum dry matter yield was 2,982kg/10a with the combination of the WFC triticale, 'Joseong' and the SFC whole crop silage rice, 'Jowoo'. In conclusion, the combination of crops that can obtain the maximum yield of high quality forage for double cropping is sowing the WFC triticale, 'Joseong' in mid-October, harvesting 'Joseong' around the end of May and then SFC whole crop silage rice, 'Jowoo', to be transplanted in early June.

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.

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.

조생종 사료용 옥수수 품종의 2기작 재배 시 생산성

손범영,배환희,고영삼,김선림,신성휴,Son, Beom-Young,Bae, Hwan Hee,Go, Young Sam,Kim, Sun-Lim,Shin, Seong Hyu 한국작물학회 2020 한국작물학회지 Vol.65 No.4

This study evaluated the productivity of early maturity silage corns during continuous monocropping and the possibility of expanding forage production. Continuous monocropping of three silage corns, such as Kwangpyeongok (medium maturity), Sinhwangok (early maturity), and Sinhwangok2 (early maturity) was planted twice, in April and July from 2018 to 2019 at Suwon. The number of days from the sowing date to the silking date was 78 for the preceding crop and 52 for the succeeding crop. The number of days from the silking date to the harvesting date was 26 for the preceding crop and 46 for the succeeding crop. The sums of the temperature from the sowing date to the silking date were 1,512℃ for the preceding crop, 1,246℃ for the succeeding crop. The sums of the temperature from the sowing date to the harvesting date were 2,198℃ for the preceding crop and 1,951℃ for the succeeding crop. The dry matter yield of the preceding crop (1,637 kg/10a) was similar to that of the succeeding crop (1,565 kg/10a). The dry matter yields of Sinhwangok2 (1,673 kg/10a), Sinhwangok (1,660 kg/10a) and Kwangpyeongok (1,579 kg/10a) were similar to those of the preceding crop. The dry matter yields of Sinhwangok (1,669 kg/10a) and Kwangpyeongok (1,651 kg/10a) were similar to those of the succeeding crop and Sinhwangok2 (1,374 kg/10a) was the lowest among the three corn varieties. The total digestible nutrients (TDN) yield of the preceding crop (1,135 kg/10a) was similar to that of the succeeding crop (1,037 kg/10a). The TDN yields of Sinhwangok2 (1,183 kg/10a), Sinhwangok (1,158 kg/10a), and Kwangpyeongok (1,063 kg/10a) were similar to those of the preceding crop. The TDN yields of Sinhwangok (1,150 kg/10a) and Kwangpyeongok (1,100 kg/10a) were similar for the succeeding crop and Sinhwangok2 (970 kg/10a) was the lowest among the three corn varieties. The total dry matter yields of Sinhwangok (3,329 kg/10a) and Kwangpyeongok (3,230 kg/10a) were similar, but Sinhwangok2 (3,047 kg/10a) was the lowest among the three corn varieties. The total TDN yields of Sinhwangok (2,307 kg/10a), Kwangpyeongok (2,162 kg/10a), and Sinhwangok2 (2,152 kg/10a) were similar. It was concluded that Sinhwangok and Sinhwangok2 have high TDN yields as well as early maturity, and therefore are advantageous for direct continuous monocropping.

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.

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.

내도복 단교잡 사료용 옥수수 신품종 ‘청다옥’

손범영(Beom-Young Son),백성범(Seong-Bum Baek),김정태(Jung-Tae Kim),이진석(Jin-Seok Lee),김선림(Wook-Han Kim),정건호(Jae-Hwan Roh),김욱한(Sun-Lim Kim),노재환(Gun-Ho Jung),권영업(Young-Up Kwon),지희정(Hee-Jung Ji),허창석(Chang-Suk Huh) 한국육종학회 2014 한국육종학회지 Vol.46 No.2

Cheongdaok, a new single maize (Zea mays L.) variety, was developed by the maize breeding team at the National Institute of Crop Science (NICS), RDA in 2010. This high-yielding hybrid was produced by crossing two inbred lines, KS159 and KS155. KS159 is the seed parent and KS155 is the pollen parent of Cheongdaok. It is a yellow dent maize hybrid. After the preliminary yield trial and advanced yield trial of Cheongdaok in Suwon for two years, the regional yield trial was subsequently carried out for evaluation of its growth characteristics and yield at four different locations from 2008 to 2010. The silking date of Cheongdaok is one day earlier than that of the check hybrid, Kwangpyeongok. Compared to Kwangpyeongok, Cheongdaok show short in plant height and low in ear height ratio. It has resistance to lodging. The stay-green degree and the ear ratio of Cheongdaok are 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 20.24 ton/ha and the total digestible nutrient (TDN) yield (13.80 ton/ha) of Cheongdaok were similar to Kwangpyeongok. The grain yield (8.51 ton/ha) of Cheongdaok was higher than that of Jangdaok. The seed production of Cheongdaok was well processed due to a good synchronization of flowering period during crossing between the seed parent KS159 and the pollen parent KS155, and the F1 seed yield was 1.8 ton/ha in Yeongwol.

연구논문 : 자연과학 ; 관수 처리 후 형광값에 의한 습해저항성 사일리지 옥수수 교잡종 선발

손범영 ( Beom Young Son ) 한국국제농업개발학회 2012 韓國國際農業開發學會誌 Vol.24 No.1

Two pot experiments were conducted in a phytotron to evaluate and select a wet-resistant silage corn hybrids from 111 corn hybrids (CHs) under simulated heavy rainfall of 100 mm for the 1st day and 50 mm from the 2nd day at the 3rd and 5th leaf stages in experiments 1 and 2, respectively. All CHs were tested under a rainfall of 280 mm for 5 days followed by irrigation treatment that started 38 days after seeding at 21±3 in experiment 1 and 44 days at 24±3 in experiment 2. Physiologically, the value of leaf fluorescence for normal corn growth is above 0.85 and more than 0.75 for re-growth after wilting, while no re-growth when it is lower than 0.70. Thus, measurement of leaf fluorescence at the initial stage of growth after water submersion is considered a useful criterion for the selection of CHs that are resistant to excess water stress. Values of leaf fluorescence (FLU) rapidly decreased after water irrigation in both temperature ranges; however, the recovery speed was faster in the irrigation treatment of 5th than 3rd leaf stage. In conclusion, we recommend that selection criteria of CHs at the early 3rd leaf growth stage with 5 days water treatment should be compared based on overcoming speed of FLU, which is one of useful and non-destructive physiological methods at this 3rd leaf stage compared with 5th leaf stage.