화훼연구 Vol. 29 No. 4 (p.239-246)

|ORIGINAL ARTICLE|
Optimization of Shading Levels, Potting Media, and Fertilization Rates on the Vegetative Growth of Sedum zokuriense Nakai

키워드 :
cultivation,fertilizer,Phedimus zokuriensis,shading,soil media,succulent,vegetative propagation

목차

Abstract
Introduction
Materials and Methods
   Plant materials
   Experimental design and treatment
   Plant growth parameters
   SPAD chlorophyll content
   Data Analysis
Results and Discussion
   Survival rate and plant growth
   Chlorophyll content and CIELAB values
References

초록

An endemic plant to South Korea, Sedum zokuriense Nakai, has medical and floricultural potential and is of ecological importance. Today, many species under the genus Sedum are used as green-roofing systems, sold as ornamental plants, and studied for breeding programs. As such, optimization studies should be conducted to identify key environmental and cultivation factors that would affect their survival and vegetative growth. In this study, shading levels (50%, 65%, 80%, 95%, and 98%), potting mixes (decomposed granite, fertilizer-amended media, perlite, river sand, burnt husk, and vermiculite), and fertilization rates [(control, 0 ppm), 500, 750, 1,000, and 2,000 ppm] were investigated and the responses of S. zokuriense in terms of their survival rate, plant growth and development, CIELAB color reading, and chlorophyll content under greenhouse conditions. Results showed that these stonecrop species are shade-loving and thrive in low-light conditions. Although the fertilizer use had minimal impacts, growing plants at 65% shading, planted with RS:VL:PL (6:2:2, v/v/v) potting media have substantially produced a high survival rate in propagation using stem cuttings. Furthermore, this allowed plants to be established while supporting high vegetative growth, green and healthy plants with high chlorophyll content.