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KMID : 1024520140230091573
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Journal of the Environmental Sciences
2014 Volume.23 No. 9 p.1573 ~ p.1581
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Effect of LED Light Quality on Growth and Flowering of Kalanchoe
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Kim So-Hee
Heo You
Hwang Ryeong-Hwan
Park Young-Hoon
Choi Young-Whan
Suh Jeong-Min
Kang Jum-Soon
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Abstract
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This study was conducted to examine the effect of LED light quality and supplemental LED light on growth and flowering for potted flowering plant of Kalanchoe. 1. Plant height of Kalanchoe was enhanced under Red, regardless of treatment time. 2. Root length and stem diameter of Kalanchoe were enhanced by Red+Blue. 3. The number of internodes was not influenced by LED light quality. Length of flower stalk of Kalanchoe increased under Red+Blue, but treatment time did not result in statistically significant differences. 4. Leaf area was not influenced by LED light quality in Kalanchoe. 5. The number of flower buds and open flowers was decreased by LED light treatment, but days to flowering was reduced by Red+Blue for 4 hr after sunset in Kalanchoe. 6. Chlorophyll and anthocyanin content was not significantly affected by LED light treatment, but anthocyanin content tended to increase by Blue 4 hr after sunset. 7. Fresh and dry weight did not increased by LED light treatment in Kalanchoe.
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KEYWORD
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Kalanchoe, LED light quality, Growth, Flowering
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