Kale (Brassica oleracea varaceplhala) production using irradiated carrageenan plant growth promoter in passive hydroponics systems
2019
Antonio, T.I. | Bayla, J.A. | Sace, C.F. | Aurique, F.B.
In passive hydroponic system, nutrient solution alone is not enough to supply nutrients to the plants especially when root absorption is impaired. Supplementation is sometimes needed to attain optimum growth. This study was conducted to determine the effect and frequency of application of carrageenan plant growth promoter (PGP) as supplement to kale under passive hydroponic system. The following treatments were evaluated. Factor A-Type of Variety (Kailaan and Toscana) and Factor B-Frequency of Application (Control-No carrageenan application, Carrageenan application at 7 days interval and Carrageenan application at 14 days interval). Application of carrageenan either 7 or 14 days interval significantly improved growth and yield parameters such as plant height, number of leaves, width of leaves, root length, weight per plant, weight of leaves, yield per box, and total marketable yield in both varieties of kale while higher number of leaves and dry matter yield was obtained in 7-day interval application. Chlorophyll content of the two kale varieties at different frequency of carrageenan had no significant differences.
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