A winter forage tetraploid rye (Secale cereale L.) cultivar, ‘Daegokgreen’, was developed at the Department of Central Area Crop Science, NICS, RDA in 2016. The mutant line ‘CG11003-8-B’, which was induced from rye cultivar ‘Gogu’ (diploid) by colchicine treatment, was selected for its excellent agronomic performance and was placed in preliminary yield trials for one year, 2013. The line was designated “Homil59” and was tested for regional yield trials at the four locations in Korea from 2014 to 2016. Finally, the new cultivar was named as the ‘Daegokgreen’ (grant number 8274). The leaf of cultivar ‘Daegokgreen’ is wide, long and dark-green color. The cultivar also has a big-size grain with light-brown color. The heading date of cultivar ‘Daegokgreen’ was April 17 which was 2 days later than that of check cultivar ‘Gogu’. The tolerance to cold and wet injury, and resistance to powdery mildew and leaf rust of the new cultivar were similar to those of the check cultivar but the resistance to the lodging of the new cultivar was stronger than that of the check. The average roughage fresh and dry matter yield of the new cultivar after 10 days from heading were 37.0 and 7.7 MT ha-1, respectively, which were similar to those (38.4 and 8.0 MT ha-1) of the check cultivar. The roughage quality of ‘Daegokgreen’ was higher in crude protein content (8.9%) than that of the check cultivar (7.9%), while was similar to the check in total digestible nutrients (56.9%). This cultivar is recommended for fall sowing forage crops at all of crop cultivation areas in Korea.

ABSTRACT
Ⅰ. 서 론
Ⅱ. 재료 및 방법
    1. 육성경위
    2. 시험방법
Ⅲ. 결과 및 고찰
    1. 고유특성
    2. 출수기, 초장과 경수
    3. 내재해성
    4. 조사료 생산성
    5. 사료가치
    6. 종실 생산성
    7. 적응지역 및 재배상 유의점
Ⅳ. 요 약
Ⅴ. 사 사
Ⅵ. REFERENCES

• 구자환(농촌진흥청 국립식량과학원 중부작물과) | Ja-Hwan Ku (Central Area Crop Breeding Div., National Institute of Crop Science) Corresponding author
• 한옥규(국립한국농수산대학교 식량작물학과) | Ouk-kyu Han (Dept. of Food Crops, Korea National College of Agriculture and Fisheries)
• 오영진(농업기술실용화재단 종자생산팀) | Young-Jin Oh (Seeds Production Team, Foundation of Agri, Tech, Commercialization and Transfer)
• 박태일(농촌진흥청 국립식량과학원 밀연구팀) | Tae-Il Park (Wheat Research Team, National Institute of Crop Science)
• 김대욱(농촌진흥청 국립식량과학원 작물재배생리과) | Dae-Wook Kim (Crop Production & physiology Div., National Institute of Crop Science)
• 김병주(농촌진흥청 국립식량과학원 중부작물과) | Byung-Joo Kim (Central Area Crop Breeding Div., National Institute of Crop Science)
• 박명렬(농촌진흥청 국립식량과학원 중부작물과) | Myoung Ryoul Park (Central Area Crop Breeding Div., National Institute of Crop Science)
• 라경윤(농촌진흥청 국립식량과학원 중부작물과) | Kyung-Yoon Ra (Central Area Crop Breeding Div., National Institute of Crop Science)