Night Interruption Promotes Flowering and Improves Flower Quality in Doritaenopsis Orchid
(주)코리아스칼라
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- 2016.04.02
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- 2015.03
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서지정보
ㆍ발행기관 : 한국화훼학회
ㆍ수록지정보 : 화훼연구 / 23권 / 1호
ㆍ저자명 : Yoon Jin Kim, Yu Jin Park, Ki Sun Kim
목차
Introduction
Materials and Methods
Plant and growth conditions
NI treatment
Data collection and analysis
Results and Discussion
Acknowledgments
References
영어 초록
Flowering responses under night interruption (NI) condition were determined in Doritaenopsis ‘Fuller’s Sunset ’, ‘Green Beer’, ‘Little Gem Stripes’, and ‘Queen Beer’ during their reproductive stages. Plants were grown under 10/14 h ambient light/dark (control), 10 h ambient light with night interruption (22 : 00-02 : 00 HR) at low light intensity of 3-7 μmol • m−2 • s−1 (LNI) and 10 h ambient light with NI at high light intensity of 120 μmol • m−2 • s−1 (HNI) conditions after flower spike emergence. Time to visible bud and flowering decreased more in the plants grown under HNI than those grown under LNI or control conditions. The number of buds or flowers increased in the plants grown under both LNI and HNI conditions compared to those grown under control condition for all cultivars. The tallest plants at flowering were in the HNI group in ‘Queen Beer’, ‘Green Beer’, and ‘Fuller’s Sunset’, however, the plant height was not significantly different among the treatments in ‘Little Gem Stripes’. NI with low light intensity or high light intensity can be used effectively to promote flower opening, but not with low light intensity at flower development stage. To obtain early flowering with high quality plants using NI treatment during their reproductive stage, high light intensity strategies could be suggested in Doritaenopsis cultivation.
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