Green Global
Foundation   Journal
...an emerging window for scientific research and publication across the globe

PHYTOREMEDIATION OF BORON CONTAMINATED SOILS BY NATURALLY GROWN WEEDS (Pages : 1 - 6)

A pot experiment was conducted at Bangladesh Agricultural University, Mymensingh on the year 2003 to identify naturally grown boron hyperaccumulating weed species in boron contaminated soil. Nine weed species namely, Barnyard grass (Echinochloa crus-galli), Joina (Fimbristylis miliacea), Chisra (Scirpus juncoids), Panikachu (Monochoria hastata), Panilong (Luduwigia hyssopifolia), Malancha (Alternanthera philoxeroides), Topapana (Pistia stratiotes) and Water cress (Enhydra, fluctuans) accumulate boron in an increasing level of boron treatment except Mutha (Cyperus rotundus). The accumulation efficiency of boron was Water cress> Malancha>Panikachu> Joina> Barnyard grass> Chisra>Panilong> Topapana. Although maximum accumulation of boron was found in Water cress but it is not abundant in the rice field; while Joina, Barnyard grass and Chisra are frequently grown. Considering the absorption pattern, biomass and toxicity tolerance Joina and Barnyard grass are the best performer and can be considered as the mitigation of boron contaminated soil due to irrigation water. Water cress and Malancha can be used for remediation of stagnant boron contaminated water as a means of phytoremediation technology. Download