FERMENTED SEAWEED (Kappaphycus alverezii) BY-PRODUCT PROMOTES GROWTH AND DEVELOPMENT OF LETTUCE (Lactuca sativa VAR. CURLY GREEN)

Main Article Content

PET ROEY L. PASCUAL
DANNY E. CARABIO
MARLENE E. RONDINA
NONNA FATIMA H. ABELLO
VALERIE U. PASCUAL

Abstract

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.

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

Article Details

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
Section
Original Research Article

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