The purpose of this study is to examine the effects of sowing dates on the growth, yield, and forage quality of two triticale cultivars, Joseong and Hanmiso-1ho. Field experiments were conducted with sowing dates ranging from September 25 to November 13, 2023. The results indicate that both cultivars and sowing date significantly influence growth characteristics, dry matter yield, and nutritional composition. The highest yields were obtained from the earliest sowing (September 25), with Joseong producing 10,979 ± 366 kg/ha and Hanmiso-1ho 12,201 ± 2,124 kg/ha. Yields remained relatively high on October 5 and 16 sowings but declined sharply after October 25, reaching the lowest levels on November 13 (Joseong 4,991 ± 458 kg/ha; Hanmiso-1ho 6,353 ± 338 kg/ha). Delayed sowing increased plant height but reduced forage biomass. Forage quality also varied with the sowing date. Crude protein (CP) ranged from 8–11%, with higher values in early sowing (10.7% for Joseong, 10.3% for Hanmiso-1ho) and lower at mid to late sowing dates. Fiber content such as NDF and ADF levels increased with the sowing dates delayed, but declined slightly with the November sowing dates. Overall, end September to early October sowings provide optimal yield and forage quality for both triticale cultivars.

ABSTRACT
Ⅰ. INTRODUCTION
Ⅱ. MATERIALS AND METHODS
    1. Research area
    2. Triticale cultivation
    3. Data analysis
    4. Statistical analysis
Ⅲ. RESULTS
Ⅳ. DISCUSSION
Ⅴ. CONCLUSIONS
Ⅵ. ACKNOWLEDGEMENTS
Ⅶ. REFERENCES

• Ilavenil Soundharrajan(Forage Production System Division, National Institute of Animal Science, Rural Development Administration, Cheonan 31000, Republic of Korea)
• Seung Hak Yang(Forage Production System Division, National Institute of Animal Science, Rural Development Administration, Cheonan 31000, Republic of Korea)
• Jeong Sung Jung(Forage Production System Division, National Institute of Animal Science, Rural Development Administration, Cheonan 31000, Republic of Korea)
• Ki Choon Choi(Forage Production System Division, National Institute of Animal Science, Rural Development Administration, Cheonan 31000, Republic of Korea) Corresponding author
• Jae Hyuk Kim(Department of Agriculture, Korea National Open University, Seoul 03087, Republic of Korea)
• Hyo-Shim Han(Department of Biotechnology, Sunchon University, Suncheon 57922, Republic of Korea)