Korean Journal of Breeding Science (한국육종학회지)

The Korean Society of Breeding Science (한국육종학회)
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'Suyang', A New Naked Oat Cultivar with Early-Heading and High-Yielding

조숙 양질 다수성 식용 쌀귀리 '수양'

  • Received : 2014.06.27
  • Accepted : 2014.09.16
  • Published : 2014.09.30
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Abstract

A new naked oat (Avena sativa L.) cultivar 'Suyang' was developed by National Institute of Crop Science, RDA in 2010. It was derived from the cross between 'Sikyonggwiri' and 'Gwiri23'. Subsequent generations were handled in a bulk method and pedigree selection program, and 'SO96025-B-303-44-2-4' was selected for agronomic appearance in 2002. The line showed both high yield and good husking rate of seed in the Yield Trial tested at Suwon in 2003 to 2004, being designated as 'Gwiri56'. The 'Gwiri56' was subsequently evaluated for winter hardiness, earliness, and yield in four locations, Gimje, Iksan, Jeongeup and Jinju from 2005 to 2010 and was released as the name of 'Suyang'. 'Suyang' had 11 days earlier heading date and 6 days earlier maturing time than the check cultivar 'Seonyang' in field condition. The 'Suyang' had 23.7 cm of spike length, 568 spikes per $m^2$, 73 grains per spike, 29.2 g of 1,000-grain weight, and 646 g of test weight. 'Suyang' showed better winter hardiness than that of the check cultivar 'Seonyang', and similar seed quality to the check cultivar in respect to crude protein (11.3%) and ${\beta}$-glucan content (4.7%). However, it showed higher husking rate than that of check cultivar. The grain yield of 'Suyang' in the regional yield trial for 4 years was averaged $4.35MT\;ha^{-1}$, which was 29% higher than that of the check cultivar 'Seonyang'. 'Suyang' is recommended for fall sowing cropping only in the south area where daily minimum mean temperatures are averaged higher than $-4^{\circ}C$ in January.

'수양'은 우리나라에서 재배가 가능한 조숙 양질 다수성 쌀귀리 품종을 육성하고자 1996년에 조숙성인 '식용귀리'를 모본으로, 조숙 대립 겉귀리 계통인 '귀리23호'를 부본으로 인공교배를 하여 계통 및 집단육종법에 의해 선발된 'SO96025-B-303-44-2-4' 계통이다. 이 계통은 2003년부터 생산력검정시험을 거쳐 계통명이 '귀리56호'로 명명되었고, 2005년부터 지역적응시험을 거쳐 2010년에 육성된 품종이다. '수양'의 잎은 담녹색이고 폭과 길이는 좁고 짧으며, 종실은 길고 황갈색이다. '수양'의 출수기는 재배지 평균 4월 28일로서, 기존에 육성된 '선양'에 비해 11일 빨랐으며, 성숙기 또한 6월 7일로서 '선양'에 비해 6일 빨랐다. '수양'의 내한성은 표준품종인 '선양'보다 강하였고, 도복도 '선양'과 같은 수준이었다. '수양'은 $m^2$당수수가 568개로 51개 적었으나, 1수립수는 73개로서 7개 많았고, ${\ell}$중은 646 g으로서 596 g인 '선양'에 비해 50 g, 천립중은 29.2 g으로 4.2 g 무거운 편이었다. 지역적응시험에서 '수양'의 평균 종실 수량은 4.35 톤/ha으로 표준품종인 '선양'보다 29% 많았다. '수양'은 '선양'에 비해 탈부율이 100%로 높고, 조단백질 함량이 11.3%, 베타글루칸 함량이 4.7%로 표준품종인 '선양'과 비슷하였다.

Keywords

Acknowledgement

Supported by : 농촌진흥청

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