Journal of The Korean Society of Grassland and Forage Science (한국초지조사료학회지)

The Korean Society of Grassland and Forage Science (한국초지조사료학회)
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Growth Characteristics and Productivity of Single Cross Maize New Hybrid for Silage and Grain, 'Yanganok'

사료용 옥수수 신품종 '양안옥'의 생육특성 및 수량성

  • Received : 2013.05.01
  • Accepted : 2013.05.15
  • Published : 2013.06.30
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Abstract

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.

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.

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References

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