The study of germination index of canola cultivars for drought resistance

This experiment was conducted as factorial experiment on completely randomize design with 4 replications. Experimental factors was canola varieties (RGS003, SUNJA, JEWEL, OPERA, ADDER, HYOLA60, ELITE, ELRIS, WESTER and COANTOM) as a first factor and different osmotic levels, made by PEG6000 (0, 0.4 and 0.9 MPa) as second factor. Results showed that main effects of variety and drought interactions of them were significant on germination percent, mean time to germination, means of daily germination, daily germination rate, coefficient of velocity of germination and seedling vigor index. Increasing drought level decrease germination percent in all variety. RGS003 was tolerant to drought stress and ELITE was susceptible one. Variety with high germination percent had lowest germination rate and variety with low germination percent exhibit more daily germination rate.