RESUMEN
This paper aims to assess the impact of seasonal variation on mycorrhizal association in selected industrial wastelands in the Kota district of Rajasthan. In the study mycorrhizal association was quantified in terms of percentage root colonization and spore density in three different seasons. The study was conducted during 2019-2021 and the data was collected for 3 seasons; summer (March-June), Rainy (July–October), and winter (November-February) to study the response to variable climatic factors to the root colonization and spore density of mycorrhiza. To determine the significance of variations in AMF spore density and percentage root colonization during different seasons, one-way ANOVA was performed. Results showed that in all the sites maximum mean spore density was observed in the summer (March-June) season but in the case of percentage root colonization, the value was found maximum in the humid season (July-October) in the control site whereas, in the three experimental sites, the maximum root colonization was observed in summer season (march-June). Hence, it may be concluded that hot climatic condition is favourable for mycorrhizal spore formation and root colonization was also favoured by hot climate.