5. Effect of waste water of the pharmaceutical industries, sugar and flour mill on growth and yield of Pisum sativum L.

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Raees Khan, Muhammad Nawaz, Zulqarnain, Saiful Islam, Hazrat Ali, Sartaj Aziz Fazal Wahid, Saeed ur Rehman Muhammad Rahim


Industries are the main source of surface and ground water pollution. Whereas, water pollution is a major cause of health hazard to human beings, animals and plants. As such, industrial effluents badly affect growth and development of food crops. In the present study, effect of the wastewater of pharmaceutical industries, sugar and flour mills was evaluated on the growth and yield of pea plant (Pisum sativum L.). Tap water was used as controlled. The field experiments were carried out during the growing season of February, 2017. The results of field experiments showed that there is no significant difference between plant germination, growth, development, plant height, number of branches per plant and seed weight (fresh and dry). Similarly, in lab experiments, no considerable difference was observed between controlled (Tap water) and wastewater treatments. We argue that small scale effluents have no effect on the growth and yield of the pea plants. It has been observed that less than 10 % of the wastewater is treated and the rest of untreated wastewater is discharged into the nearby water bodies throughout Pakistan. Therefore, proper treatment system for industrial effluents is recommended to meet the international standards.

Keywords: Germination; growth; Pisum sativum; yield


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