Journal
HORTICULTURE ENVIRONMENT AND BIOTECHNOLOGY
Volume 58, Issue 1, Pages 12-20Publisher
KOREAN SOC HORTICULTURAL SCIENCE
DOI: 10.1007/s13580-017-0051-2
Keywords
antioxidant enzymes; macronutrients; micronutrients; photosynthesis; reactive oxygen species; scanning electron microscopy; stomata
Categories
Funding
- Cooperative Research Program for Agriculture Science and Technology Development [01090805]
- Rural Development Administration, Republic of Korea
- BK21 Plus Program, the Ministry of Education
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The objective of this study was to determine the effect of light quality on the growth, physiology, and antioxidant enzyme activity of two important domestic carnation (Dianthus caryophyllus) cultivars: 'Green Beauty' and 'Purple Beauty'. In vitro-grown shoot tip explants were cultured on the plant growth regulator (PGR)-free Murashige and Skoog (MS) medium under a conventional cool white fluorescent lamp (control), blue light-emitting diode (LED), or red LED. Growth traits, photosynthetic and biochemical parameters, activity of antioxidant enzymes, and nutrient content were measured after 8 weeks. Interestingly, the blue and red LED treatments resulted in a significant increase in growth, photosynthetic parameters, and nutrient content in comparison to the conventional cool white florescent lamp treatment. In addition, red LED treatment increased the activities of antioxidant enzymes and elemental contents in both cultivars. Thus, incorporating blue or red LED treatments enhances the quality of 'Green Beauty' and 'Purple Beauty' carnations propagated in vitro.
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