“Chamgreen” was a domestically developed rye (Secale cereal L.) cultivar in South Korea, known for its quick heading, cold resistance, and abundant yield of forage. The heading date of cv. 'Chamgreen' averaged April 17th, which was 4 days earlier than the standard cv. 'Gogu'. In the early harvesting stage, the plant height reached an average of 119 cm, 7 cm taller than the standard cv. 'Gogu', and the number of spikes per ㎡ was 865, slightly less than cv. 'Gogu's 897. Resistance to cold and powdery mildow remained consistent across four regions nationwide over three years, with an average rating of 0, matching cv. 'Gogu'. Lodging resistance was also rated at 2, equivalent to cv. 'Gogu'. The dry matter yield of cv. 'Chamgreen' was 9.1 tons per hectare, 15% higher than cv. 'Gogu's 7.9 tons. Although the protein content in cv. 'Chamgreen' was 13.5%, 1.6% lower than cv. 'Gogu', the total digestible nutrients (TDN) content was 5.81 tons per hectare, 20% higher than cv. 'Gogu'. Due to its strong cold resistance, cv. 'Chamgreen' allows for winter cultivation through double cropping and rotation systems in various regions across the country.

Ⅰ. 서론
Ⅱ. 재료 및 방법
    1. 육성경위
    2. 시험방법
Ⅲ. 결과 및 고찰
    1. 고유특성
    2. 출수기
    3. 초장 및 내재해성
    4. 조사료 생산성
    5. 사료가치
    6. 종실 생산성
Ⅳ. 요 약
Ⅴ. 사 사
Ⅵ. REFERENCES

• 한옥규(국립한국농수산대학교) | Ouk-Kyu Han (Korean National University of Agriculture and Fisheries, Jeonju 54874, Korea) Corresponding author
• 김대욱(국립식량과학원) | Dea-Wook Kim (National Institute of Crop Science, RDA, Wanju 55365, Korea)