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Yaser Hassan Dewir, Abdulhakim A. Aldubai, Salah El-Hendawy, Abdullah A. Alsadon, Mayada Kadry Seliem, and Yougasphree Naidoo

were grown in a growth chamber for 4 weeks before transfer to the greenhouse. The environment in the growth chamber was adjusted to a 25 ± 2 °C air temperature, 50% to 60% relative humidity, and 100 μmol·m −2 ·s −1 PPFD with a 16-h photoperiod using

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Vincent Pelletier, Steeve Pepin, Thomas Laurent, Jacques Gallichand, and Jean Caron

·ha −1 in 2014) ( APCQ, 2015 ). A decline in photosynthesis is one of the first physiological responses to soil waterlogging ( Liao and Lin, 2001 ). Poor aeration in the root zone generally leads to a reduction in root cellular respiration and

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Qinglu Ying, Chase Jones-Baumgardt, Youbin Zheng, and Gale Bozzo

; 25% blue light and 75% red light; and 30% blue light and 70% red light. All lighting treatments had a fixed PPFD of 300 μmol·m −2 ·s −1 and were applied for a 16-h photoperiod. For each light quality treatment, PPFD and spectral distribution were

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Suejin Park, Sarah A. Mills, Youyoun Moon, and Nicole L. Waterland

depending on species and cultivars. Responses to ABA treatments have been shown to vary according to species ( Blanchard et al., 2007 ; Waterland et al., 2010a ). Blanchard et al. (2007) reported that sprench application of s-ABA at 125 or 250 mg·L −1

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Alexander G. Litvin, Christopher J. Currey, and Lester A. Wilson

; Ludvig Svensson, Kinna, Sweden) on motorized rollers, resulting in a mean daily photosynthetic photon flux density ( PPFD ) of 8.3 ± 2.1 mol·m −2 ·d −1 . Supplemental lighting treatments. Ambient greenhouse PPFD was supplemented with 100 μmol·m −2 ·s –1

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Ying Qu, Xue Bai, Yajun Zhu, Rui Qi, Geng Tian, Yang Wang, Yonghua Li, and Kaiming Zhang

/15 °C day/night under a 10-h photoperiod with a PPFD of 300 µmol·m −2 ·s −1 (designated “CK”). Seedlings in the second group were sprayed with distilled water and grown at 15/5 °C day/night under a 10-h photoperiod with a PPFD of 300 µmol·m −2 ·s −1

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Tadahisa Higashide, Yuya Mochizuki, Takeshi Saito, Yasushi Kawasaki, Dong-Hyuk Ahn, and Akio Ohyama

; LI-COR) at a photosynthetic photon flux density (PPFD) of 1500 μmol·m −2 ·s −1 and a CO 2 concentration of 1000 μmol·mol −1 . To obtain a photosynthetic light–response curve for each cultivar, we measured the photosynthetic rate of a single upper

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William R. Okie and Bryan Blackburn

. Boxes with LED lights remained at chamber temperature. An incandescent source (Phillips Lighting, Somerset, NJ; 7.5 W nightlight, 4.4 μmol·m −2 ·s −1 PPFD ) provided a predominantly far-red treatment. This box was left uncovered (but in a dark chamber

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David H. Suchoff, Penelope Perkins-Veazie, Heike W. Sederoff, Jonathan R. Schultheis, Matthew D. Kleinhenz, Frank J. Louws, and Christopher C. Gunter

is further exacerbated by a reduction in the amount of assimilable CO 2 caused by cold-induced stomatal closure ( Allen and Ort, 2001 ). In response to cold soils, root system growth and carbon sink strength are reduced, resulting in a slowing of

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Hans-Peter Kläring and Angela Schmidt

growth cabinets with a ground area of 10 m 2 (York, Mannheim, Germany) and grown at 325 µmol·m −2 ·s −1 PPFD during the light phase and 100 µmol·m −2 ·s −1 in the transition period. The relative humidity was 80% and the temperature during day and night