The effect of heavy metals, namely mercury (Hg+2), zinc (Zn+2), nickel (Ni+2) and cobalt (Co+2), which were applied in the form of chloride salt, and that of lead (Pb+2) and cadmium (Cd+2) applied in the form of nitrate salt, on the pollen germination and tube growth were investigated on apples ( Malus sylvestris cv. Golden). According to the results obtained, these heavy metals led to a significant decrease in the pollen germination and tube growth. It was found that there was a parallelism between the concentration of heavy metal salt, and pollen germination and tube growth. Among the heavy metals applied in the form of chloride salt, mercury (Hg+2) showed the highest toxic effect, followed by zinc (Zn+2), nickel (Ni+2) and cobalt (Co+2) respectively. It was observed that among the heavy metals applied in the form of nitrate salt lead (Pb+2) in higher concentrations was more effective than cadmium (Cd+2). It was concluded that heavy metals affect pollen germination and tube growth at different rates.

The effect of heavy metals, namely mercury (Hg+2), zinc (Zn+2), nickel (Ni+2) and cobalt (Co+2), which were applied in the form of chloride salt, and that of lead (Pb+2) and cadmium (Cd+2) applied in the form of nitrate salt, on the pollen germination and tube growth were investigated on apples ( Malus sylvestris cv. Golden). According to the results obtained, these heavy metals led to a significant decrease in the pollen germination and tube growth. It was found that there was a parallelism between the concentration of heavy metal salt, and pollen germination and tube growth. Among the heavy metals applied in the form of chloride salt, mercury (Hg+2) showed the highest toxic effect, followed by zinc (Zn+2), nickel (Ni+2) and cobalt (Co+2) respectively. It was observed that among the heavy metals applied in the form of nitrate salt lead (Pb+2) in higher concentrations was more effective than cadmium (Cd+2). It was concluded that heavy metals affect pollen germination and tube growth at different rates.