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Seaweed processing into juice extraction produces a large volume by product which from a kilo of seaweed (Kappaphycus alverezii), 800 grams (80%) of residue goes to waste after the extraction. The aim of this study was to improve the growth and yield of lettuce as: height, growth rate, leaf length, above and below ground fresh weight through the use of Fermented Marine Macro Algae Residue. Four treatments were compared; solid seaweed sludge (by-product of fermentation at 10tons/ha), fermented liquid seaweed (10ml/L) and the combination of both against a commercially available seaweed-based fertilizer (10ml/L). For lettuce (Lactuca sativa var. Curly Green) plant height after five days from transplanting showed that application of seaweed sludge (solid seaweed fertilizer) outperformed the commercial fertilizer at 10.01±0.72SE cm and 6.28 ±0.0.57SE cm respectively. On the 20th day, the combination of both liquid and solid seaweed fertilizer produced the tallest plants (plant height) with the longest leaves at 13.87±0.42SE cm and 15.43±0.54SE cm, respectively. The fastest growth rate was achieved from 16-20 days with the combined application of liquid and solid seaweed fertilizer at 5.31±0.44SE cm. From transplanting (0-5 days), highest growth rate was achieved by applying solid seaweed fertilizer alone (4.08±0.44SE cm/5-days). At comparable below ground weight, liquid fertilizer application resulted to almost three times heavier above ground weight (270.17±163.61SE g/plant) than all of the treatments. Thus, waste products from processing seaweed-based beverage can effectively be utilized as fertilizer through fermentation in both liquid and in solid form, and more importantly in combination for the production of lettuce.

Seaweed, organic agriculture, fermentation, sludge, liquid fertilizer.

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How to Cite
PASCUAL, P. R. L., CARABIO, D. E., RONDINA, M. E., ABELLO, N. F. H., & PASCUAL, V. U. (2020). FERMENTED SEAWEED (Kappaphycus alverezii) BY-PRODUCT PROMOTES GROWTH AND DEVELOPMENT OF LETTUCE (Lactuca sativa VAR. CURLY GREEN). PLANT CELL BIOTECHNOLOGY AND MOLECULAR BIOLOGY, 21(71-72), 208-214. Retrieved from https://ikprress.org/index.php/PCBMB/article/view/5803
Original Research Article


Silva MRP, Pinheiro FC, De Paula MT, Prigol M. Parasitological evaluation of lettuce (Lactuca sativa) marketed in a municipality of western frontier, RS Brazil Tropical Pathology Magazine. 2015;44(2): 163-169. Available:Https://doi.org/10.5216/rpt.v44i2.36646

Martins ACA, Silva L, Santos J, Andrade L, Martins LP. Quality assessment microbiological analysis of lettuce (Lactuca sativa) sold in the city of Bananeiras-PB. National Day From Agroindustry, 3 Bananeiras,PB. Annals. Banana Tree UFPB; 2008.

Kim MJ, Moon Y, Tou J, Mou B, Waterland N. Nutritional value, bioactive compounds and health benefits of lettuce (Lactuca sativa L.). Journal of Food Composition and Analysis. In Press; 2016. DOI: 10.1016/j.jfca.2016.03.004

Pedrotti A, Chagas RM, Ramos VC, Prata APN, Lucas AAT, Santos PB. Causes and consequences of the process of soil salinization. Electronic Magazine on Environmental Management, Education and Technology; 2015.

Santi A, Carvalho MA, Campos OR, Silva AF, Almeida JL, Monteiro S. Effect of organic material on the production and characteristics of lettuce cultivars. Brazilian Horticultural Magazines. 2010;2(8):87-90. Available:Https://doi.org/10.1590/S0102-05362010000100016

Wu L, Jiang Y, Zhao F, He X, Liu H, Yu K. Increased organic fertilizer application and reduced chemical fertilizer application affect the soil properties and bacterial communities of grape rhizosphere soil. Sci Rep. 2020;10:9568.

Emer Shannon, Nissreen Abu-Ghannam. Seaweeds as nutraceuticals for health and nutrition, Phycologia. 2019;58:5:563-577 DOI: 10.1080/00318884.2019.1640533

Jayasinghe Pradeepa. Effect of seaweed liquid fertilizer on plant growth of Capsicum annum. Discovery an International Journal. 2016;52:723-728.

Rajkumar Immanuel S, Subramanian SK. Effects of fresh extracts and seaweed liquid fertilizers on some cereals and millets. Seaweed Research Utilization. 1999;21:91.

Pascual P, Jarwar A, Nitural PS. Fertilizer, fermented activators, and EM utilization in pechay (Brassica pekinensis L.) production. Pak. J. Agri., Agril. Engg. Vet. Sci. 2013;29(1):56-69. Available:https://agris.fao.org/agris-search/search.do?recordID=PK2014000384 ISSN: 1023-1072.

Gollan JR, Wright JT. Limited grazing by native herbivores on the invasive seaweed Caulerpa taxifolia in a temperate. Australia Estuary Marine and Fresh Water Research. 2006;57:685-694.

Yusuf R, Kristiansen P, Warwick N. Effect of two seaweed products and equivalent mineral treatments on lettuce (Lactuca sativa L.) Growth. Journal of Agronomy. 2019;18:100-106.

Munisamy S. Seaweed plant nutrients to enhance the population and health of earthworm eudriluseugeniae along with crop betterment in chilli Capsicum annum (var. Kkm-ch1) under pot culture. Journal of Agriculture and Environment; 2018.

Abbas R. Mazhar, Anwar Jahanzeb, Zafar-ul-Hye, Muhammad Khan, Rashid, Saleem, Muhammad, Rahi, Ashfaq, Danish, Subhan, Datta, Rahul. Effect of seaweed extract on productivity and quality attributes of four onion cultivars. Horticulturae. 2020;6. DOI: 28. 10.3390/horticulturae6020028

Rathore SS, Chaudhary DR, Boricha GN, Ghosh A, Bhatt BP, Zodape ST, Patolia JS. Effect of seaweed extract on the growth, yield and nutrient uptake of soybean (Glycine max) under rainfed conditions. South African Journal of Botany. 2009;75(2):351–355. DOI: 10.1016/j.sajb.2008.10.009

Thomas SCL. Production development of sea buckthorn L. T.S.C. product development of sea buckthorn. In: J. Janik and A. whipke (Eds), Trendsin New Crops and New Uses. ASHS, Alexandria. VA. 2002;393-398.