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Analysis of Sugar Mill Effluent and its Influence on Germination and Growth of African Marigold (Tagetes erecta L.)

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Abstract Sugar industry is a very important agro-based
industry in India and it discharges large amount of effluent
into water bodies to create high pollution in water bodies
which affects the plants and other living organisms. In the
present investigation, the physico-chemical analyses of N.
P. K. R. Ramaswamy co-operative sugar mill effluent was
determined and impact of different concentrations (control,
10, 25, 50, 75 and 100%) of sugar mill effluent on seed
germination behavior of African marigold (Tagetes erecta
L.) was studied. The morphological parameters such as
germination percentage, shoot length, root length, fresh
weight and dry weight of seedlings, seed vigour index,
tolerance index and percentage of phytotoxicity were calculated.
The results recorded for the analyses of sugar mill
effluent indicated their some parameters such as PH, EC,
acidity, TDS, TS, BOD, COD, sulphate, magnesium,
nitrogen, zinc, iron, copper, lead, manganese and oil and
grease exceeded the permissible limit compared to Tamil
Nadu Pollution Control Board (TNPCB) and then germination
and growth parameters increased in lower (10%)
concentration of sugar mill effluent and this morphological
parameters gradually decreased with increasing effluent
concentration. The lower (10%) concentration of sugar mill
effluent may be used for irrigation purposes.

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Language
English
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Subject(s)
African marigold
Germination
Physicochemical analysis
Phytotoxicity
Sugar mill effluent
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Article
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