1Department of Microbiology, Faculty of Agriculture, Annamalai University, Annamalai Nagar-608 002, Tamil Nadu, India
2Department of Microbiology, Soil Science and Agricultural Chemistry, College Agricultural Sciences, Faculty of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur-603 203, Chennai, Tamil Nadu, India
3Institute of Agriculture, National Pulse research Center Campus, Tamilnadu Agricultural University, Vemban, Pudhukottai-622 104, Tamil Nadu, India
4Agricultural College and Research Institute, Kurukkathi, TNAU, Keezhvelur, Nagapattinam-611 105, Tamil Nadu, India
5Department of Biotechnology, Karpaga Vinayaga College of Engineering and Technology, Chinna Kolambakkam, Palayanoor, Maduranthakam-603 308, Tamil Nadu, India
6Department of Microbiology and Biotechnology, Faculty of Arts and Science, Bharath Institute of Science, Seliyaur, Chennai-600 073, Tamil Nadu, India
*Corresponding Author: B. Karthikeyan, Department of Microbiology, Faculty of Agriculture, Annamalai University, Annamalai Nagar-608 002, Tamil Nadu, India, Email: bkeyan473@gmail.com
Water pollution is prime cause of unavailability of the suitable water for irrigation purpose. Since many industries discharge their effluent on to open lands because of high cost of dilution and inadequate treatment facilities effective and profitable utilization of the effluent of the industries needs greater attention. Hence an attempt has been made to study the effects of tannery effluent (both treated and untreated) on black gram crop.
Field experiments were conducted using different concentrations of microbially treated effluent applied to blackgram plants. The following parameters such as plant growth and yield. Biochemical constituents, enzyme activities, heavy metal content, macronutrient content were analysed. Additionally, plant N, P and K content and microbial population dynamics was also studied. The experiment was conducted under similar conditions in the next year and completed.
Results revealed that microbially treated effluent up to a 40% concentration imparted significant change in the observed parameters. Beyond this concentration, a reduction was observed in growth, yield, biochemical and enzymatic parameters.
Black gram, Growth and yield parameters, Tannery effluent
