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Mid-late Maturing, Multiple Disease and Insect Resistant, High Biomass Yielding Whole Crop Silage Rice Cultivar ‘Yeongwoo’
중만생 복합내병충성 고 바이오매스 사료용 벼 ‘영우’
Korean J Breed Sci 2018;50(3):331-339
Published online September 1, 2018
© 2018 Korean Society of Breeding Science.

Eok-Keun Ahn*, Sang-Bok Lee, Yong-Jae Won, Jeom-Ho Lee, Jae-Ki Chang, Eung-Gi Jeong, Kuk-Hyun Jung, Jeong-Heui Lee, Young-chan Cho, Jong-Min Jeong, Jung-Pil Suh, Jeong-Ju Kim, O-Young Jeong, Yong-Hee Jeon, Ha-Cheol Hong, Gyu-Sung Lee, and Bo-Gyeong Kim
안억근*, 이상복, 원용재, 이점호, 장재기, 정응기, 정국현, 이정희, 조영찬, 정종민, 서정필, 김정주, 정오영, 전용희, 홍하철, 이규성, 김보경

National Institute of Crop Science, RDA, Suwon 16429, Republic of Korea
농촌진흥청 국립식량과학원
Correspondence to: (E-mail: okahn@korea.kr, Tel: +82-31-695-4027, Fax: +82-31-695-4029)
Received June 18, 2018; Accepted June 25, 2018.
This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract
‘Yeongwoo’, a mid-late flowering, high dry matter yielding rice (Oryza sativa L.) cultivar with high feed value and multiple disease-insect resistance, was developed for whole crop silage (WCS) use. It was derived from a cross between a high biomass and brown planthopper (Bph) resistant ‘SR25848-C99-1-2-1’ and high yielding Tong-il type, ‘Yongmun’ which had diseases resistance. This cultivar had about 117 days growth period from seeding to heading, 99 cm culm length, 26 cm panicle length, 11 panicles per hill, 125 spikelets per panicle, and 1,000-grain weight of 23.6 g as brown rice in the central plain region, Suwon. This wide and long leafy WCS rice variety was weak to cold stresses, similarly to ‘Nokyang’ but was resistant to lodging in the field, strong to viviparous germination, and good under low temperature germination. In addition, ‘Yeongwoo’ was resistant to leaf and neck blast, bacterial blight (race K1, K2, K3, K3a), rice stripe virus, Bph, and small Bph. Its average dry matter yield for three years reached 20.0 MT/ha, 32% higher than that of ‘Nokyang’. This cultivar had 5.3% crude protein and 71.7% total digestible nutrients, which was slightly lower than that of ‘Nokyang’. In the Korean peninsula, ‘Yeongwoo’ grew well in the central and southern plain and was could be harvested between 15 to 30 days after heading to improve the feeding value and digestion rate of livestock (Grant No. 6800).
Keywords : Rice, Whole crop silage, Biomass, Disease and insect resistance, Yeongwoo


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