Effects of root zone cooling on Lactuca sativa cultivation under roof top garden structure in tropical climatic conditions

Seri 'Aisyah Hassim, . and Ahmad Safuan Bujang, . and Muhamad Syahiran Afief Azman, . and Mohd Shukry Hassan Basri, . and Ahmad Syafik Suraidi Sulaiman, . Effects of root zone cooling on Lactuca sativa cultivation under roof top garden structure in tropical climatic conditions. pp. 1-11. ISSN 2735-1084

A rooftop garden structure was installed on top of a 20-foot freight container plant factory in MARDI Serdang Selangor. The rooftop garden consists of three major components: a rain shelter a reticulated hydroponic growing system via Nutrient Film Technique (NFT) and a chiller system to chill and control the nutrient-water temperature in the fertiliser tank. Lactuca sativa was cultivated using root zone cooling with a hydroponic setup at ambient temperature as a control to study the root zone cooling system (RZC) on the crop yields in the tropics. The weight of crop root leaf width and leaf numbers of Lactuca sativa have been selected as yield parameters recorded and analysed. From the results all the growing parameters performance for Lactuca sativa grown in the root zone cooling method were found to be better than control. For yield parameters performance Lactuca sativa grown in control was better than the root zone cooling method. The yield weight for Lactuca sativa cultivated as control is higher than the RZC system by 39.4 ranging from 36.69(39.04 g as control) and 20.59(23.66 g) RZC method. Roots weight for Lactuca sativa cultivated as a control method is better than RZC by 14.1 ranging from 5.736.22 g using control) and 4.695.34 g by using RZC respectively. The number of leaves for Lactuca sativa cultivated as a control method is more than RZC by 26 ranging from 1415 as control and static at 11 using the RZC system. The leaves dimension for Lactuca sativa cultivated as control is more significant than RZC by 48. The Lactuca sativa leaves dimension cultivated as a control method is from 580.35(670.27 cm2 while RZC is from 318.68348.45 cm.

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Abstract

A rooftop garden structure was installed on top of a 20-foot freight container plant factory in MARDI Serdang Selangor. The rooftop garden consists of three major components: a rain shelter a reticulated hydroponic growing system via Nutrient Film Technique (NFT) and a chiller system to chill and control the nutrient-water temperature in the fertiliser tank. Lactuca sativa was cultivated using root zone cooling with a hydroponic setup at ambient temperature as a control to study the root zone cooling system (RZC) on the crop yields in the tropics. The weight of crop root leaf width and leaf numbers of Lactuca sativa have been selected as yield parameters recorded and analysed. From the results all the growing parameters performance for Lactuca sativa grown in the root zone cooling method were found to be better than control. For yield parameters performance Lactuca sativa grown in control was better than the root zone cooling method. The yield weight for Lactuca sativa cultivated as control is higher than the RZC system by 39.4 ranging from 36.69(39.04 g as control) and 20.59(23.66 g) RZC method. Roots weight for Lactuca sativa cultivated as a control method is better than RZC by 14.1 ranging from 5.736.22 g using control) and 4.695.34 g by using RZC respectively. The number of leaves for Lactuca sativa cultivated as a control method is more than RZC by 26 ranging from 1415 as control and static at 11 using the RZC system. The leaves dimension for Lactuca sativa cultivated as control is more significant than RZC by 48. The Lactuca sativa leaves dimension cultivated as a control method is from 580.35(670.27 cm2 while RZC is from 318.68348.45 cm.

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Item Type:	Article
AGROVOC Term:	Lactuca sativa
AGROVOC Term:	Asteraceae
AGROVOC Term:	Lettuces
AGROVOC Term:	Plant cultivation
AGROVOC Term:	Roofs
AGROVOC Term:	Tropical climate
AGROVOC Term:	Root zone
AGROVOC Term:	Hydroponics
AGROVOC Term:	Cooling systems
AGROVOC Term:	Crop production
Depositing User:	Mr. AFANDI ABDUL MALEK
Last Modified:	24 Apr 2025 00:55
URI:	http://webagris.upm.edu.my/id/eprint/10116

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