Abstract
Abstract 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 http://dx.doi.org/10.19045/bspab.2020.90130
Highlights
Introduction environmentTo reasonably feed the world’sThe huge increase in population and growing population, techniques for growing alarming rate of water shortage will cause sufficient food have to evolve
Plant height is greater in static nutrient film technique than geoponics which is in accordance with the finding of scientist who stated that plants that are grown in soil tended to be less vigorous than those plants grown in static nutrient film technique [6]
Number of leaves per plant is greater in static nutrient film technique than geoponics which is in accordance with the finding of scientist who stated that plants that are grown in soil have less number of leaves per plant than those plants grown in static nutrient film technique [6]
Summary
Introduction environmentTo reasonably feed the world’sThe huge increase in population and growing population, techniques for growing alarming rate of water shortage will cause sufficient food have to evolve. Plant height in treatment T2 (20.64) is significantly different with all other treatments T1 (18.58), T3 (18.22), T4 (19.24) and T5 (17.38) respectively at 5 % level of probability. Average number of leaves per plant in treatment T2 (10.8) were nonsignificantly differ with treatment T4 (10.2) and significantly different with all other treatments T1 (9.6), T3 (9.2) and T5 (8.4) respectively at 5 % level of probability.
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