通过对2000余份国内外稻种资源的抗旱性筛选及早作区自然鉴定,从引种材料中发现原产国际热带农业研究所的IRAT109不仅抗旱性强,且农艺性状优良。目前,该优良早稻种质在江苏省的沿江、沿海旱作区及宁镇丘陵地带试种推广,浙江、安徽、福建、江西、湖南等地也引进试种。 Through the screening of more than 2000 domestic and foreign rice germplasm resources for drought resistance and natural identification as early as possible, it was found from the introduced materials that IRAT109 from the original International Institute of Tropical Agriculture had not only strong drought resistance but also good agronomic traits. At present, the fine early rice germplasm was planted and popularized in the coastal areas of Jiangsu Province, the coastal dry farming area and the Ningzhen hilly area, and the trial planting was also introduced in Zhejiang, Anhui, Fujian, Jiangxi and Hunan.