The purpose of this study was to evaluate the forage maize varieties and sowing date under wet seasons conditions and determined the effects on yield in Cambodia. In this study, the number of days from sowing to silking was approximately nine longer in May and June than in July, August, and September. The number of days from silking to harvest was seven shorter in May and June than in July, August, and September. The variety with the least decrease in ear height was ‘BT5666’, and the variety with the least decrease in ear height ration was ‘CP888’. On the other hand, in sowing days, ear height ratio decreased in September. The best sowing season in ear length, ear width, number of ears and number of grains per row was in May. In this study, ‘BT5666’ was the variety with significant decrease with a 90% reduction in yield. The results indicate that the yield was high during the sowing period in May and in June because of the appropriate precipitation, temperature, and solar radiation. However, August and September had significantly reduce in yield by high precipitation and low solar radiation.

ABSTRACT
서 언
재료 및 방법
결과 및 고찰
    파종 시기별 기상 환경
    파종시기별 생물 계절
    우기의 파종 시기별 생육 특성
    파종시기별 이삭 수량 특성
적 요
REFERENCES

• 이윤호(농촌진흥청 국립식량과학원 작물재배생리과) | Yun-Ho Lee (Crop physiology and production, National Institute of Crop Science, 181 Hyeoksin-ro, Iseo-myeon, Wanju-gun, Jeollabuk-do 55365, Republic of Korea)
• 황태영(충북대학교 농업생명환경대학 식물자원학과) | Tae-Young Hwang (Department of Crop Science, College of Agriculture, Life Science and Environment Chemistry, Chungbuk National University, Cheongju, 28644, Korea) Corresponding author