Journal of SOIL BIOLOGY and ECOLOGY

Impact of abiotic factors on abundance of Collembola in Guava ecosystem

Authors: NGUYEN THI KIM THOA AND N.G. KUMAR

Abstract:

The investigations on the abundance of Collembola in guava (Psidium guajava L.) ecosystem were carried out at Gandhi Krishi Vignana Kendra, University of Agricultural Sciences, Bengaluru. The samples (litter and soil) were collected from guava from October 2015 to September 2016. The results indicated that litter samples harboured a significantly higher abundance of Collembola than soil samples. The population in litter samples was significantly higher at June IIF (second fortnight). Maximum temperature, maximum and minimum soil temperature showed a significant negative correlation with Collembola and positive correlation with max. and min. Relative humidity, total rainfall and Insitu soil temperature. However, among these, Insitu soil moisture had a positive impact with 54.5 per cent on the abundance of Collembola. The relationship between the abundance of Collembola in a soil sample and abiotic factors indicated that maximum temperature, minimum and maximum soil temperature showed a negative correlation, and the rest showed a positive correlation. However, abiotic factors showed an impact of 39.2 per cent on the abundance of soil Collembola.

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