EFFECTS OF INDUSTRIAL EFFLUENTS ON SEED GERMINATION AND GROWTH OF RADISH

ARM Maukeeb, MF Mondal, M Saha and MK Hasan
Journal of the Sylhet Agricultural University, Volume 5, Issue 1, 2018, Pages 51-59

Abstract:

The research work was conducted from October to December 2016 on the rooftop of Agriculture Faculty Building of Sylhet Agricultural University, Sylhet to assess the effects of industrial effluents on seed germination, seedling mortality and growth of radish (Raphanus sativus L.). Effluents were collected from common dumping-off areas of Narsingdi, Tongi, Hazaribagh, Alampur, Khadimnagar, Majortilla, Bhatiary, Bayazid bostami and Sagorika under Dhaka, Sylhet and Chittagong division of Bangladesh. Maximum concentration of Pb (2.038 mgl-1), Cd (0.082 mgL-1), Ni (0.237 mgl-1) and Cr (0.172 mgl-1) were obtained in Hazaribagh industrial effluents; Fe (7.171 mgl-1) and Zn (1.938 mgl-1) were highest in Khadimnagar. Both experiments were laid out in a CRD with three replications. Radish seedlings were significantly affected by the application of different industrial effluents. Maximum seedling mortality (22.78%) at 15 DAS was observed in Khadimnagar industrial effluents, whereas zero seedling mortality was observed in control. Shoot and root length of radish also affected by effluents. Due to toxicity of heavy metals shoot length (36.97%) and root length (61.38%) were reduced compared to control along with decrease in other growth parameters of radish. Maximum number of leaf plant-1, leaf length, leaf width, fresh weight and dry weight were recorded in control whereas minimum values was recorded when Khadimnagar industrial effluents used as irrigation water followed by Hazaribagh. The overall results indicated that Khadimnagar and Hazaribagh industrial effluents were significantly contaminated with heavy metals namely Pb, Cd, Ni, Cr, Fe and Zn which have toxic effects on radish growth.

Keywords:

Industrial discharges, heavy metals, seedling mortality, development


Full Text

PDF

768 Views


Cite this article

ARM Maukeeb, MF Mondal, M Saha and MK Hasan. 2018. EFFECTS OF INDUSTRIAL EFFLUENTS ON SEED GERMINATION AND GROWTH OF RADISH, Journal of the Sylhet Agricultural University 5(1): 51-59.