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This study was conducted to determine the effects of light intensity on the growth and development as well as the anthocyanin content of two Echeveria species, namely Echeveria agavoides and E. marcus. Three light intensity levels (high, 150 μmol･m-2s-1; intermediate, 75 μmol･m-2s-1; and low, 35 μmol･m-2s-1) served as the treatments, which were replicated four times. The results revealed that the tallest and largest plants were those under low light conditions. It was observed that there was a decline as the light intensity increased, which is attributed to the coping mechanisms of plants to search for light sources, which has a similar effect to bolting or an increase in the node-to-node distance. CIELAB color values of L* and a* for both species were significantly affected by the light intensity, indicating changes in the lightness of hue and green-to-red color pigmentation in plants. These results were strongly reflected in those of the anthocyanin content analysis, where a direct increase in the concentration was observed with increasing light intensity. The results of the anthocyanin analysis were also supported by the histogram, smart segmentation images, as well as the ratio of red and green pigments found in the images. Thus, a high light intensity should be used to increase the quality and provide conducive growing conditions for both succulent species
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참고문헌 (23)
참고문헌 신청
Adams CR / 2004 / Principle of horticulture / Elsevier Butterworth-Heinemann
Beckwith AG / 2004 / Relationship of light quantity and anthocyanin production in Pennisetum setaceum Cvs. rubrum and red riding hood / J Agric Food Chem 52:456~461
Fan XX / 2013 / Effects of light intensity on the growth and leaf development of young tomato plants grown under a combination of red and blue light / Scientia Hort 153:50~55
TIBOR FULEKI / 1968 / Quantitative Methods for Anthocyanins.. / Journal of Food Science 33(1):72~77
Fischer CC / Artificial lighting for decorative plants
Beckwith AG / 2004 / Relationship of light quantity and anthocyanin production in Pennisetum setaceum Cvs. rubrum and red riding hood / J Agric Food Chem 52:456~461
Fan XX / 2013 / Effects of light intensity on the growth and leaf development of young tomato plants grown under a combination of red and blue light / Scientia Hort 153:50~55
TIBOR FULEKI / 1968 / Quantitative Methods for Anthocyanins.. / Journal of Food Science 33(1):72~77
Fischer CC / Artificial lighting for decorative plants
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