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'Nokyang', Whole Crop Forage Barley Cultivar with the Stay-Green Character, Resistance to Viral Disease and High-Yielding

내병 다수 후기녹체성 청보리 신품종 '녹양'

  • Received : 2015.03.06
  • Accepted : 2015.03.10
  • Published : 2015.03.31

Abstract

"Nokyang" (Hordeum vulgare L.), a new whole-crop silage barley cultivar, was developed by the breeding team at the Department of Rice and Winter Cereal Crop, National Institute of Crop Science, RDA, Korea in 2012. It was derived from combining "Nagyoung" and breeding line "SB77368-B-145". Among the combinations made in 2001, a promising line, "SB01T2017", showed good characteristics in terms of potential forage yield in the yield trial at Iksan from 2007 to 2009. In 2009, the promising line was designated as "Iksan457" and placed in regional yield trials at six locations around Korea for three years from 2010 to 2012, and was released under the name of "Nokyang." It has the growth habit of a group III creeping plant type, with a light-green leaf and common spike. Its average heading and maturing dates were on May 6 and June 4, respectively, which were later than cultivar "Youngyang." "Nokyang" also showed strong winter hardiness, and a resistance to shattering and barley yellow mosaic virus (BaYMV) similar to those of the check cultivar. The best thing among the traits of one is a new good quality with the plant green at the latter growing period. The average forage dry matter (DM) yields in the regional yield trial were about 12.8 and 11.5 MT $ha^{-1}$ in upland and paddy field, respectively, which were higher than those of the check cultivar, by 7% and 2%, respectively. This cultivar would be suitable for an area of the Korean peninsula where the daily minimum temperature in January is above $-8^{\circ}C$.

청보리 신품종 '녹양'은 총체생산성이 높고 생육후기 녹체성이 우수하며, 도복에 강하고 보리호위축병에 저항성인 품종이다. 이 품종은 2001년 '낙영'을 모본, 육성계통인 'SB77368-B-145'를 부본으로 교배하여 선발된 'SB01T2017-B-B-1-2' 계통을 2007년~2012년까지 관찰시험, 생산력검정시험과 지역적응시험을 거쳐 2012년에 육성되었다. '녹양'은 반포복 초형으로 파성이 III 정도이며, 잎은 담녹색이면서 넓고, 줄기 굵기는 중간 정도이며, 이삭은 길고 까락은 일반망이다. '녹양'은 잎과 줄기의 후기녹체성이 '영양'에 비해 오래 지속되었다. '녹양'의 초장은 104 cm로 대비품종인 '영양'에 비해 장간형이고, 평균 출수기와 성숙기는 각각 5월 6일과 6월 4일로 '영양'보다 늦었다. '녹양'은 '영양'보다 추위와 도복에 강하였고, 보리호위축병에 대하여 익산(III형), 나주(I형), 진주(IV) 등 모든 지역에서 저항성을 보였다. '녹양'의 평균 건물수량은 전작에서 12.8톤/ha, 답리작에서 11.5톤/ha으로 영양'에 비하여 각각 7%, 2% 증수하였다. '녹양'과 '영양' 모두 황숙기에 곡실의 탈립 정도가 매우 낮았고, 조사료 품질은 조단백질 함량 7.2%, ADF 25.9%, TDN 68.5%로 '영양'과 대등하였고, 젖산함량도 3.36%로 3.04%인 '영양'과 비슷하였으며, 사일리지 등급은 2등급으로 양호하였다.

Keywords

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