This study aimed to strengthen food security in 10 AFACI (Asian Food and Agriculture Cooperation Initiative) member countries by developing climate-resilient rice (Oryza sativa L.) lines and establishing a multinational breeding network. The initiative responds to the climate crisis by focusing on elite rice lines tolerant to abiotic stresses (drought, salinity, and submergence). An analysis of rice cultivation e nvironments in these c ountries r evealed that a p proximately 3 5.2% ( 16.74 M ha) of t he t otal area (47.6 Mha) is disaster-prone. Drought was the most prevalent threat (19.9%), followed by salinity (8.3%) and submergence (7.9%). Bangladesh (62.7%) and Thailand (60.6%) showed the highest sensitivity to these stresses. Using the Standard Evaluation System (SES) and an Augmented-RCBD design, 86 elite lines were selected through multi-location 'hotspot' testing. These included 32 lines for drought tolerance, 29 for salinity tolerance, and 25 for submergence tolerance. Notably, IR16F1148 (tolerant to salinity and submergence) and IR13084-B-1456-1 (tolerant to drought and submergence) were identified as key genetic resources for addressing climate variability. These lines will undergo further evaluation in Stage 2 Multi-environment Trials (MET) to facilitate rapid variety registration and dissemination. The established breeding network, supported by standardized digital data management via the Enterprise Breeding System (EBS), enhances breeding efficiency and ensures data integrity. This network serves as a critical foundation for climate-resilient agricultural productivity in the AFACI region.

ABSTRACT
서 언
재료 및 방법
    시험 재료 및 계통 구성
    시험 장소 및 재배 관리
    시험 설계 및 저항성 분석
    데이터 수집 및 분석
    우량계통 선발
결 과
    1. 회원국별 자연재해 취약성 분석
    2. 저항성 자원 선발 결과
    3. 복합 저항성 및 광 지역 적응성 우량 계통 선발
고 찰
    1. 다국적 협력 육종의 성과와 행정적⋅환경적 제약 요인
    2. 재해 지역의 광범위성과 전략적 자원 배분
    3. 복합 재해저항성 자원의 학술적 가치 분석
    4. 품종화 프로세스 혁신 및 농가 보급 가속화 전략
적 요
ACKNOWLEDGMENTS
REFERENCES

• 정오영(농촌진흥청 국립식량과학원) | O-Young Jeong (National Institute of Crop and Food Science, RDA, Republic of Korea)
• 서정환(농촌진흥청 국립식량과학원) | Jeonghwan Seo (National Institute of Crop and Food Science, RDA, Republic of Korea)
• 박재령(농촌진흥청 국립식량과학원) | Jae-Ryoung Park (National Institute of Crop and Food Science, RDA, Republic of Korea)
• 박송희(농촌진흥청 국립식량과학원) | Songhee Park (National Institute of Crop and Food Science, RDA, Republic of Korea)
• 이건미(농촌진흥청 국립식량과학원) | Keon-Mi Lee (National Institute of Crop and Food Science, RDA, Republic of Korea)
• 박현수(농촌진흥청 국립식량과학원) | Hyun-Su Park (National Institute of Crop and Food Science, RDA, Republic of Korea)
• 신동진(농촌진흥청 국립식량과학원) | Dong-Jin Shin (National Institute of Crop and Food Science, RDA, Republic of Korea)
• 진민아(농촌진흥청 국립식량과학원) | Mina Jin (National Institute of Crop and Food Science, RDA, Republic of Korea)
• 이창민(농촌진흥청 국립식량과학원) | Chang-Min Lee (National Institute of Crop and Food Science, RDA, Republic of Korea) Corresponding author
• 설국환(농촌진흥청 기술협력국) | Kuk-Hwan Seol (Technology Cooperation Bureau, RDA, Republic of Korea)
• Mary Jean C. Du(국제미작연구소)