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Namiko Yamori, Yoriko Matsushima, and Wataru Yamori

). Therefore, the use of LEDs as a supplemental light source enables fine control of the light environment. Light conditions, including intensity, wavelength, and photoperiod, affect several aspects of plant physiology, including plant growth and flower

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Desmond G. Mortley, Douglas R. Hileman, Conrad K. Bonsi, Walter A. Hill, and Carlton E. Morris

mass and that there were marginal impacts on storage root yield suggesting that the low 7–10 µmol·m −2 ·s −1 supplemental light enabled the plants to maintain themselves as well as grow minimally ( Chard et al., 2004 ). This is also evidenced by the

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Robert M. Pyne, Adolfina R. Koroch, Christian A. Wyenandt, and James E. Simon

base, was constructed and overhead irrigation was applied every 2 h for 5 min during the light cycle only. Temperature settings were set to 20/24 °C corresponding to a 12-h/12-h light/dark cycle in which supplemental light was provided only when

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James C. Locke, James E. Altland, and Deanna M. Bobak

settings of 22/21 °C. Supplemental light was provided from a combination of high-pressure sodium (250 W) and metal halide (400 W) lights for up to 15 h·d −1 (0700 hr to 2200 hr ) when light levels fell below 450 μmol·m −2 ·s −1 . Plants were acclimated

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Yi-Lu Jiang, Tzong-Shyan Lin, Ching-Lung Lee, Chung-Ruey Yen, and Wen-Ju Yang

). Strategies such as breeding for winter cultivars and developing methods to regulate flowering seasons are being implemented to produce winter crops. Theoretically, night breaking by using supplemental light might lead to winter fruit production ( Yen and

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Rui Wang, Masatake Eguchi, Yuqing Gui, and Yasunaga Iwasaki

. However, when supplemental light was applied, the standard deviations of DM, LA, and NL showed relatively small deviations from the mean data. These results suggest that both flowering uniformity and photosynthesis are affected by light energy input

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Celina Gómez, Robert C. Morrow, C. Michael Bourget, Gioia D. Massa, and Cary A. Mitchell

2011. < > Dorais, M. Gosselin, A. Trudel, M.J. 1991 Annual greenhouse tomato production under a sequential intercropping system using supplemental light Sci. Hort. 45 225 234 Dueck, T.A. Janse, J

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Andrew Koeser, Sarah T. Lovell, Michael Evans, and J. Ryan Stewart

until root growth is sufficient to maintain stability. To account for this, individual pocket bottoms were cut out from a shuttle/carry tray with a 1-cm lip and placed between the containers and the drain tray. Plants were grown under supplemental light

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Vincent M. Russo and James Shrefler

of irrigation, and climate control to include heating/cooling regimes, duration of supplemental light, and use of shadecloth. When shade was used under tropical conditions in the field, bunching onion yield increased, or was unaffected, depending on

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Andrea Luvisi, Alessandra Panattoni, Roberto Bandinelli, Enrico Rinaldelli, Mario Pagano, Barbara Gini, Giorgio Manzoni, and Enrico Triolo

needed, alternating between water and water-soluble fertilizer mix applied at a rate of 20N–2.2P–8.3K (Cifo, Bologna, Italy) applied with a proportioned at a rate of 1500 mg·L −1 nitrogen. No supplemental light was supplied. Maximum photosynthetic photon