An investigation of pollen germination and pollen tube growth in the culture media showed that all the three factors, i.e. flowering flowering development stages, pollen incubation and modified media with different sucrose concentrations significantly affected pollen germination and pollen tube length, with the exception of pollen tube length of ‘cv. C’ which was not significantly affected by flowering development stages (Table 2). In addition, inter actions between/among three factors on pollen germination and pollen tube growth were observed.