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8600908 
Journal Article 
Growth behavior of Azolla filiculoides to endosulfan stress 
Chris, A 
2013 
Connect Journal 
13 
1 
93-96 
English 
The effect of endosulfan (0-20 ppm) treatments on dry weight, doubling time, average root length, root number, heterocyst frequency, protein as well as pigments like chlorophyll and carotenoids were analyzed. Endosulfan declined the dry weight and protein of Azolla filiculoides. Chlorophyll and carotenoids contents were also found to decrease with the rising concentration of the pesticide. Relative growth rate of endosulfan treated fronds decreased significantly resulting in an increase in doubling time. With increase in pesticide concentration filaments were shorter and had less heterocysts. © 2013, Connect Journal. 
Azolla filiculoides; Chlorophyll; Endosulfan; Heterocyst frequency; RGR