Abstract: The study was conducted to estimate the pollen viability of four genotypes and storage conditions. Pollen grains were stored in four storage temperatures and their viability was assessed by in vitro germination. The results showed that the ability of four genotypes germination in dry conditions was better than in others,and the duration of storage was longer as the temperature decrease. With the storage time increasing,the germination rate of lily pollen gradually decreased,but had a distinct rise in some periods of storage process.