The development of an organic nutrient solution for baby cos lettuce (Lactuca sativa L.) production in a hydroponic system
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Issued Date
2026-05-01
Resource Type
ISSN
05677572
eISSN
24066168
Scopus ID
2-s2.0-105039804620
Journal Title
Acta Horticulturae
Volume
1455
Start Page
295
End Page
301
Rights Holder(s)
SCOPUS
Bibliographic Citation
Acta Horticulturae Vol.1455 (2026) , 295-301
Suggested Citation
Kunasit C., Suntra W., Saouy M. The development of an organic nutrient solution for baby cos lettuce (Lactuca sativa L.) production in a hydroponic system. Acta Horticulturae Vol.1455 (2026) , 295-301. 301. doi:10.17660/ActaHortic.2026.1455.35 Retrieved from: https://repository.li.mahidol.ac.th/handle/123456789/116996
Title
The development of an organic nutrient solution for baby cos lettuce (Lactuca sativa L.) production in a hydroponic system
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Abstract
In the production of lettuce using an organic hydroponic system, the development of an appropriate nutrient solution is crucial for optimal plant growth. This study aimed to evaluate the effectiveness of organic nutrient solutions on growth and yield of baby cos lettuce. A completely randomized design (CRD) with five replications was used. Six treatments were applied: the modified Hoagland solution (control; Tr1), organic nutrient solution 1 (compost 1; Tr2), organic nutrient solution 2 (compost 2; Tr3), organic nutrient solution 3 (vermicompost; Tr4), organic nutrient solution 4 (compost 1 and vermicompost (1:1); Tr5) and organic nutrient solution 5 (compost 2 and vermicompost (1:1); Tr6). Lettuce seeds were germinated and the seedlings were subsequently transplanted into a hydroponic system. At harvest, data were collected on leaf greenness, leaf color, leaf number, biomass, nitrate content, and the presence of Escherichia coli (E. coli). The results demonstrated that the different nutrient solution formulations had significant effects on plant growth parameters, photosynthetic efficiency, leaf greenness, leaf color, yield, and nitrate accumulation. Organic nutrient solution 1 (Tr2) and organic nutrient solution 2 (Tr3) yielded the highest fresh weights, indicating their superior performance. Nitrate concentrations in organic nutrient solutions ranged from 1,235 to 3,825 mg kg<sup>-1</sup> and E. coli was not detected in any treatment.