Mycorrhizal symbiosis of Fraxinus rotundifolia and comparison of colonization percentage and spore abundance in spring and autumn

The present investigation was conducted during 2013 growing seasons to study the effects of some physio-chemical soil properties on the AMF spore numbers and root colonization parameters. Besides, this research was also undertaken to elucidate the effects of season on AMF activity. Sampling was done at the outset and end of vegetation growth period. In each time five succulent trees (Fraxinus rotundifolia) were selected randomly. Soil samples were taken from the upper 15 cm of soil. Roots were sampled at the same sites as soil samples. Average arbuscular mycorrhizal percent colonization and spore number were significantly different between the two seasons. The difference between average pH, phosphor, and potassium, on the treatments (spring and autumn) was significant. However, there was no significant difference between nitrogen, organic matter, and carbon in the treatments. The results of correlation analysis indicated that there was a significant correlation between

Mycorrhizal symbiosis of Fraxinus rotundifolia and comparison of colonization percentage and spore abundance in spring and autumn Keywords:

Mycorrhizal symbiosis , Fraxinus rotundifolia , colonization percentage , spore abundance , physio-chemical soil properties , AMF activity