New data on the domestication of the two subspecies indica and japonica of the Asian cultivated rice ( Oryza sativa ) during the Dvaravati Period in Thailand and Lao PDR

摘要

Rice hull imprints on bricks of the Dvaravati Period from four historical sites in Thailand and Lao PDR were measured and classified. In addition, a collection of traditional rice landraces from northern, central, northeastern regions of Thailand, Lao PDR