초기생육 및 저온발아성이 우수한 중만생 고 바이오매스 사료용 벼 ‘녹우’

• Published in: Korean journal of breeding Vol. 49; no. 3; pp. 265 - 272
• Main Authors: 안억근(Eok-Keun Ahn), 정응기(Eung-Gi Jeong), 이상복(Sang-Bok Lee), 최용환(Yong-Hwan Choi), 양창인(Chang-Ihn Yang), 이점호(Jeom-Ho Lee), 원용재(Yong-Jae Won), 이규성(Gyu-Sung Lee), 정오영(O-Young Jeong), 모영준(Young-Jun Mo), 김정주(Jeong-Ju Kim), 조영찬(Young-chan Cho), 장재기(Jae-Ki Chang), 김명기(Myeong-Ki Kim), 서정필(Jung-Pil Suh), 이정희(Jeong-Heui Lee), 정국현(Kuk-Hyun Jung), 정종민(Jong-Min Jeong)
• Format: Journal Article
• Language: Korean
• Published: 한국육종학회 30.09.2017; The Korean Breeding Society
• Subjects: 농학; Whole crop silage; Nokwoo; Germination; Rice; Cultivar
• ISSN: 0250-3360; 2287-5174
• DOI: 10.9787/KJBS.2017.49.3.265

‘Nokwoo’, a mid-late maturing, high dry matter yielding rice (Oryza sativa L.) cultivar with a good early growth and low-temperature germinability, was developed for whole crop silage (WCS) use. It was derived from a cross between a leafy tropical japonica ‘LK1A-2-12-1-1’ with high biomass and good germinability in low temperature and new plant type (NPT), ‘IR72225-29-1-1’ which had low tillering trait, large panicle, dark green leaf, thick and sturdy stem and vigorous root system. This cultivar had about 123 days growth period from seeding to heading, 122㎝ culm length, 29㎝ panicle length, 9 panicles per hill, 144 spikelets per panicle and 1,000-grain weight of 24.4 g as brown rice in central plain region, Suwon. This wide and long leafy WCS rice variety was weak to cold stresses similar to ‘Nokyang’ but was a little resistant to lodging in the field, strong to viviparous germination and good to low temperature germination. In addition, ‘Nokwoo’ was resistant to leaf and neck blast but susceptible to bacterial blight, rice stripe virus and brown planthopper. Its average dry matter yield for three years reached 16.5 MT/ha, 14% higher than that of ‘Nokyang’. This cultivar had 5.3% crude protein and 68.8% total digestible nutrients a little low compared to ‘Nokyang’. In Korea peninsular, ‘Nokwoo’ grows well in central and southern plain and is good to harvest between 15 to 30 days after heading to improve its feeding value and digestion rate of livestock (Grant No. 6072).