| The study aims to assess drought of 30 rice cultivars during germination period, using PEG-6000 hypertonic solution to simulate drought condition. Eleven traits germinating performance were investigated, such as germination force, germination values, root length, germ length, coleoptile length, ratio of root to shoot, biomass transport rate. The results showed significant correlations between biomass translocation rate and ratio of root to shoot (0.83) and the ratio of root/shoot and germ dry weight (-0.51) and length (-0.47). Principal component analysis showed that the 11 traits were classified as four major factors, and germ dry weight, germination rate, coleoptile length, and the ratio of root to shoot showed maximum load, with the correlation coefficients being 0.4876, 0.5266, 0.6661 and 0.5988, respectively. These factors have implications in the identification of drought resistance in rice. clustering analysis divided rice drought resistance into four categories, with XS-13-12 and XS-13-9 being highly drought resistant, XS-13-2, A218 and XS-13-11 resistant, Daohuaxiang, SN1204, XS-13-13 and XS-13-3 moderate resistant, while 1043, SN9903 and XS-13-4 drought sensitive. |