This exploration mission was undertaken to collect rice germplasm in the two provinces, Thanh Hoa and Nghe An of northern Vietnam from November 5 to December 4 in 1996. A total of 154 seed samples were collected. Most of them are glutinous landraces of upland rice. Landraces cultivated in irrigated fields have been replaced by improved cultivars, CR203 and IR17494 and hybrid rice from China, even in mountainous regions. Arable lands of upland rice have decreased in these two provinces because of a shift to other crops
