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Impact of Textile Dyeing Effluents on Germination and Seedling Stage of Country Bean (lablab Niger Var. Typicus)

Jahidul Hassan
Department of Horticulture, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur-1706, Bangladesh.

Mohammed Zia Uddin Kamal
Department of Soil Science, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur-1706, Bangladesh.

M. Z. Alam
Department of Bioenvironmental Science, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur-1706, Bangladesh.

Abstract/ Executive Summary:

An experiment was conducted on the impact of dying effluents on germination and seedling stage for the production of country bean (Lablab niger var. typicus). Seven stages of Dyeing effluents were used as treatment variables and compare their effect on germination attributes and early growth stage of country bean. The treatment of neutralization stage (D₅) to enhanced the germination percentage remarkably (100%) as well as statistically identical with the result of underground water (D₁) whereas the treatments of effluent from 2nd wash after Bath (D₄) & mixed effluent from ETP were showed poor germination (73.33%). Second wash after scouring and bleaching treatment (D₂) also showed good result. All results has been taken by considering other germination oriented parameters, such as germination energy, relative germination rate, effluent injury rate and germination velocity. On the contrary, outstanding result was showed at seedling growth stage from the treatment of D₅ except others. But D₄ treatment performed very poor among all parameters. So, it can be suggested that, D₅ stage of textile effluent might be applied as irrigation water for the purpose of crop production as well as country bean cultivation and sustainable environment.

Keywords: Textile, Effluents, Country bean, Germination, Seedling growth

Location: Gazipur, Bangladesh.

Start Date:

End Date:

Program Area: Crop-Soil-Water Management

Commodity: Country bean

Objectives:

To study the impact of dying effluents on germination and seedling stage for the production of country bean (Lablab niger var. typicus).

Methodology:

Different stages of textile dying effluents were collected in pre-cleaned plastic bottle from Tex Euro Bd. Ltd., Vogra, Gazipur, Bangladesh. The effluents were stored at 4^oC temperature to avoid their changes of physiochemical properties. Various physio- chemical characteristics were analyzed at the laboratory of Dhaka University of Engineering Technology (DUET), Gazipur, Bangladesh. The germination test was conducted following the prescribed method in ISTA rules and 480 seeds were collected from the Department of Horticulture, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur, Bangladesh. All seeds were surface-sterilized with 1% sodium hypochlorite (NaOCl) for one minute to prevent any fungal contamination, and thereafter the seeds were washed with distilled water. The Petri dishes and filter papers were sterilized in an autoclave to prevent microbial contamination. Twenty (20) seeds for each treatment were transferred to Petri dishes lined with filter paper. This filter disc was moistened with 4 ml of distilled water for control and with the same quantity of textile effluents. The petri dishes were incubated at 20°C in the growth room. Germination was recorded daily at a fixed hour and the emergence of radical was taken as a criterion of germination. Germination percentage, germination energy, germination index, relative germination rate and relative effluent-injury rate were also determined. Four hundred viable seeds of country bean were randomly selected from the stock. Twenty seeds were sown in each of four plastic pots (10 cm diameter and 10 cm height) and also filled with by as required ordinary garden soil and washed well by tap water and then pour distilled water as to flush through all the salts that was present in the soil. The pots were irrigated with under ground water as control treatment and seven different stages of dying effluent. 250 ml of each stages effluent were applied. This experiment prolonged up to the standard age of transplantation (third leaf stage). For observation of growth, seedlings was picked from each of the poly bags and then length of the root, shoot, leaf length, leaf width, as well as dry fresh weight were recorded at the termination of experiment. Then individual plant was picked up and kept at 70°C in oven for 3 days. Then their dry weights were recorded. The process was replicated for three times and the experiment was laid out following the randomized complete block design (RCBD). The values were subjected to one-way analysis of variance (ANOVA) and DMRT for comparison of means to determine statistical significance. Statistical analysis was performed using MSTAT-C program.

Source of Information: International Journal of Agricultural Sciences, ISSN: 2167-0447, Vol. 6 (2), pp. 949-958, February, 2016.

Article Link (Online Journal): www.internationalscholarsjournals.org

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

It is concluded that physio- chemical characteristics of the effluents that’s were exceeded the standard limit has negative impact on germination and seedling growth. But neutralizing stage of effluent water showed positive response on the germination percentage, germination energy, relative germination rate and relative effluent injury rate of country bean seed as well as its seedling growth. Thereby, disposal of these effluents through proper treatment might have positive view from the corner of sustainable environment. Consequently, farmers of adjacent textile industries area will be benefited by using the treated effluents for production of crops that will minimize the use of fresh underground water for dying & other purpose.

Knowledge Management: Journal