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Impact of Textile Waste Water on Seed Germination and Some Physiological Parameters in Pea (Pisum sativum L.), Lentil (Lens esculentum L.) and Gram (Cicer arietinum L.)

Author(s): M. Gufran Khan | G. Daniel | M. Konjit | A. Thomas | S.S. Eyasu | G. Awoke

Journal: Asian Journal of Plant Sciences
ISSN 1682-3974

Volume: 10;
Issue: 4;
Start page: 269;
Date: 2011;
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Keywords: root development | Biomass | chlorophyll | relative growth rate

The use of industrial waste water for irrigation purposes has emerged an important way to utilize its nutrients and removal of its pollutants load by growing tolerant plant species. An experiment was conducted to evaluate the impact of textile factory effluents (0, 10, 25,50 and 100% concentration) on germination and some physiological parameters like biomass production, chlorophyll contents, root development in three leguminous crops viz., pea (Pisum sativum L.), lentil (Lens esculentum L.) and Gram (Cicer arietinum L.). Plants were raised first in perti dishes and then in plastic pots in triplicate and irrigated with various concentrations (0, 10, 25, 50 and 100%) of effluent. Germination %, biomass production, chlorophyll contents and various attributes of root development were determined in plants grown under different treatments. Plants exhibited a substantial reduction in total germination, root and shoot DW, number of root branches/plant, Mean Extension Rate (MER), Relative Multiplication Rate (RMR), Relative Growth Rate (RGR) and chlorophyll contents when grown with higher concentration (50 and 100% concentration) of textile effluents. However, the effect of textile effluents was promotive rather than inhibitory on these parameters when applied in low concentrations (10 and 25%). Crops performed differentially to the effluent imposition as lentil performed relatively well as compared to other crops. It has been inferred that the effect of textile effluent was crop specific depending on the concentration and stage of growth. It was suggested that waste water from textile factory could be utilized for irrigation purposes after proper dilution and may contribute, at least in part towards solving the problem of textile effluent disposal. However, such recommendation needs some more extensive work to minimize the risk.
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