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Eric W. Kerschen, Caleb Garten, Kimberly A. Williams, and Melanie M. Derby

from a root medium, and evapotranspiration rates from variegated spider plants and green jade plants, at two indoor humidity levels; 2) evaluating the impact of the diurnal light cycle on transpiration for two plant species with different photosynthetic

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Dominic P. Petrella, James D. Metzger, Joshua J. Blakeslee, Edward J. Nangle, and David S. Gardner

conditions by placing Cone-tainers™ under four layers of black polyester cloth. Dark conditions were verified using a LI-COR quantum sensor and LI-2189 light meter. Two to three seedlings were grown per Cone-tainer™. Pigment extractions and analysis

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Leora Radetsky, Jaimin S. Patel, and Mark S. Rea

-López et al., 2014 ). Cruickshank (1963) found that brief, intermittent light treatments (<1 h light with <2 h dark) using broadband spectra at moderate irradiances were more effective at suppressing sporulation of Peronospora tabacina (tobacco DM

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Kui Lin, Zhi Huang, and Yong Xu

lights are 658, 518, and 445 nm, respectively, and the full width at half maximum of them is 22 nm. Lighting for all treatments was set at a 16-h photoperiod (16 h light/8 h dark) and the photosynthetic photon flux levels were measured at the top of the

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Gioia Massa, Thomas Graham, Tim Haire, Cedric Flemming II, Gerard Newsham, and Raymond Wheeler

cycle ( Morrow, 2008 ; Yeh and Chung, 2009 ). Light-emitting diodes are easily configured into different form factors and, for example, have been used to provide intracanopy lighting where whole plant canopies can be irradiated from both above and from

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Mordecai J. Jaffe and A. Carl Leopold

depth has been suggested to occur by light reaching either the bulb or the leaf that arises from the bulb ( Iziro, 1983 ; Putz, 1996a ; Putz et al., 1997 ; Rimbach, 1898 ). Temperature cycling also may enhance root contraction in some species ( Halevy

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Peitao Lü, Xinmin Huang, Hongmei Li, Jiping Liu, Shenggen He, Daryl C. Joyce, and Zhaoqi Zhang

, trends in the rates of water uptake and water loss of the cut lily flower were generally similar to those of the cut rose. Highest water uptake rates were typically in the light and typically lowest in the dark on 24 h cycles over 6 d ( Fig. 3C ). Water

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Tessa Pocock

., 2010 ). The first PR class, PHY, senses the ratio of red and far red (FR) light ( Casal 2000 ; Chen and Chory, 2011 ; Franklin and Quail, 2010 ). The biologically inactive P r form is synthesized in the dark and is converted to P fr within 1 to 2

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Jiunn-Yan Hou, Tim L. Setter, and Yao-Chien Alex Chang

., 2001 ), light intensity ( Lin and Hsu, 2004 ), growth stage ( Hsu, 2007 ), and diurnal cycle ( Pollet et al., 2009 ) on chlorophyll fluorescence changes in Phalaenopsis had been studied. The quantum efficiency of Phalaenopsis equestris leaf was

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Krishna Nemali and Marc W. van Iersel

programmed to light and dark cycles of 4 and 2 h, respectively. This enabled us to start any drought cycle on the same day after rehydrating wilted plants from the previous cycle. During the gas exchange study, the DLI during 16 h of light was maintained