An experiment was conducted at the Department of Botany, Jahangirnagar University, Dhaka, Bangladesh to mitigate arsenic from soil by using phytoremediation process during the period from October 2012 to April 2013 following Completely... more
An experiment was conducted at the Department of Botany, Jahangirnagar University, Dhaka, Bangladesh to mitigate arsenic from soil by using phytoremediation process during the period from October 2012 to April 2013 following Completely Randomized Design (CRD) with three replications. Four non edible fern (viz. V1, Adiantum sp; V2, Microlepia sp; V3, Pteris vittata and V4, Christella sp) and four soil arsenic concentrations (viz. A0, Control; A1, 1000-ppm; A2, 2000-ppm and A3, 4000-ppm) were exploited. Pteris vittata L. was found as the arsenic hyperaccumulating plant. It can survive with a very high concentration of arsenic in soil and accumulate 27829.7-ppm, 23274.7-ppm and 14911.0ppm arsenic when soil was treated with 4000-ppm, 2000-ppm and 1000-ppm arsenic respectively. On the other hand other fern species used in the experiment could not survive in soil treated with arsenic. Throughout the experimental period, different growth parameters of fern species showed distinct variation with increasing concentration of arsenic. Phytoremediation of arsenic by using Pteris vittata is a possible way for the mitigation of arsenic form soil which can keep away of arsenic pollution in food chain.
The modern agricultural practices have led to improve the contaminated soils with a variety of heavy metals that have become a major environmental concern. The use of arbuscular mycorrihizal fungi (AMF) is considered a potential tool for... more
The modern agricultural practices have led to improve the contaminated soils with a variety of heavy metals that have become a major environmental concern. The use of arbuscular mycorrihizal fungi (AMF) is considered a potential tool for the sustainable agriculture especially in contaminated sites. Moreover, recently, the use of AMF has become a fascinating and multidisciplinary subject for the scientists dealing with plant protection. The present study was carried out to evaluate the interaction among arsenic (As) species, AMF, and two plant species: Pteris vittata and Astragalus sinicus, differing in their metal tolerance. Results about A. sinicus revealed that the biomass was affected as As (III and V) accumulated in the roots of A. sinicus, and in rachis and pinnae of P. vittata. The inoculation of AMF markedly increased the biomass yield of the both plants when exposed to As species. The exposure to the As species resulted variation and non-significant results about antioxidant...
An experiment was conducted to trap arsenic accumulation into potato plant by Pteris vittata inter-planting. Experiment consisted three different density of the trap plants viz. P0: No P. vittata (control); P4: four P. vittata plant per m... more
An experiment was conducted to trap arsenic accumulation into potato plant by Pteris vittata inter-planting. Experiment consisted three different density of the trap plants viz. P0: No P. vittata (control); P4: four P. vittata plant per m 2 and P8: eight P. vittata plant per m 2. Inter-planting of four P. vittata per m 2 reduced 95.94 % and eight P. vittata per m 2 reduced 97.01% arsenic accumulation into potato over control. Maximum yield was found from P4 (359.00 g/plant) which was statistically similar with P3 (343.80 g/plant) while minimum was found from P0 (316.50 g/plant). Highest amount of arsenic accumulation was found from P1 (No P. vittata interplanting) in potato tuber flesh (0.20 ppm), tuber peel (5.46 ppm) and plant body (43.74 ppm). P. vittata inter-planting (both P4 and P8) showed least arsenic accumulation in potato tuber flesh (0.01 and 0.02 ppm in P4 and P8 respectively), tuber peel (0.44 and 0.41 ppm in P4 and P8 respectively) and plant body (1.52 and 1.40 ppm in P4 and P8 respectively) over control. So it can be suggested that inter-planting of P. vittata can trap arsenic from soil to enter into food crops. Based on the findings of the current study it can be suggested to inter-plant four P. vittata per m 2 area.
An experiment was conducted at Horticultural farm of the Sher-e-Bangla Agricultural University, Bangladesh for phytoremediation of arsenic from soil using Pteris vittata as a trap plant. The experiment was conducted following Completely... more
An experiment was conducted at Horticultural farm of the Sher-e-Bangla Agricultural University, Bangladesh for phytoremediation of arsenic from soil using Pteris vittata as a trap plant. The experiment was conducted following Completely Randomized Design with three replications. Soil was contaminated with arsenic at different levels by treating @ 0 ppm (A0), 500 ppm (A1), 1000 ppm (A2) and 2000 ppm (A3) arsenic trioxide (As2O3) in pot soil. During the growing period the Pteris vittata as trap plant accumulated 23837.2 ppm, 15332.6 ppm, 1769.9 ppm and 0.9 ppm arsenic from pot soil contaminated with arsenic of A3, A2, A1 and A0 treatments respectively. Pteris vittata could be use as a possible way to mitigate and or reduce arsenic from soil of arsenic affected areas in Bangladesh.
