期刊
HORTSCIENCE
卷 44, 期 2, 页码 231-234出版社
AMER SOC HORTICULTURAL SCIENCE
DOI: 10.21273/HORTSCI.44.2.231
关键词
LEDs; photostationary state; strawberry; lettuce; Lactuca sativa; Fragaria xananassa
类别
Light-emitting diodes (LEDs) are solid-state, long-lived, durable sources of narrow-band light output that can be used in a range of horticultural and photobiological applications. LED technology is rapidly developing and high-quality, high-output LEDs are becoming commercially available at an affordable cost. LEDs provide the opportunity to optimize the spectra for a given plant response, but consideration must be given to both photosynthetic and photo morphogenic effects of light while making those selections. A discussion of basic phytochrome response and data necessary to select narrow-band LEDs to achieve a specific photostationary state is provided. The use of LEDs to alter spectral quality, and phytochrome equilibrium, to regulate anthocyanin formation in red leaf lettuce and to regulate flowering of short-day strawberry are discussed.
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