Pollen ultrastructure of peach trees regenerated from tissue culture

الملخص EN

Scanning electron microscopic and light microscopic studies were made on pollen grains of 26 peach trees regenerated from tissue culturc.

Characters that showed morphological variation included pollen grain length, width and length/width ratio.

Pollen grains from all peach regenerated trees were elliptical and triaperturate with the germinal furrows extending almost to the full length of the grain.

In all cases, the exine pattern was recticulate with irregular and semicircular shape pores.

Pollen grains variability showed highly significant differences among the 26 peach regenerated trees.

Pollen tube length of the 26 peach regenerated trees was not significantly different.

Therefore these parameters could be used for distinguishing between those peach regenerated trees.