3. Hydroponics as an innovative technique for lettuce production in greenhouse environment

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Abdul Qadeer, Zia-Ul-Haq Shahid Javed Butt Hamza Muneer Asam, Talha Mehmood, Muhammad Kazim Nawaz, Sohail Raza Haidree



Lettuce (Lactuca sativa) is an appetizing top leafy vegetable used as salad consumed all over the world due to a good source of vitamins and minerals. In Pakistan conventional lettuce production in soil (geoponics) is insufficient to meet the market demand round the year. However, customers demands for fresh lettuce during offseason. In this scenario, alternative farming practices like nutrient film technique is only feasible and have great yield promise. Keeping in view the market demand of lettuce an experiment was conducted at Hydroponic Research Station Rawat, Institute of Hydroponic Agriculture, Pir Mehr Ali Shah Agriculture University Rawalpindi. Static hydroponic system was developed in the experiment and its comparison was made with the geoponics in the green house condition. Growth and yield parameters were recorded. Crop parameters including plant height, number of leaves per plant, length of leaf, breadth of leaf, and yield per plant in five treatments T1 (static pipe with 7.6 cm dia.), T2 (static pipe with 10.1 cm dia.), T3 (static tray with 8.8 cm width), T4 (static tray with 12.5 cm width) and T5 (Geoponics) were measured. To take the average data five plants were selected from each treatment. The data were statistically analyzed in Completely Randomized Design (CRD) at 5% level of probability. Yield per plant in treatments T1, T2, T3, T4, T5, was observed 190.80, 245.80, 176, 213.40 and 150.80 respectively. Highest yield per plant (245.80) was recorded in treatment T2 while the least yield per plant (150.80) observed in treatment T5.

Keywords: Geoponics; Lettuce; Static hydroponic system


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