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Janelle E. Glady, N. Suzanne Lang, and Erik S. Runkle

Dianthus caryophyllus ‘Cinnamon Red Hots’, which is a day-neutral plant that perpetually develops flowers under most environmental conditions ( Bunt and Cockshull, 1985 ). In contrast, other perennial plants such as Coreopsis verticillata ‘Moonbeam’ do

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Fumiko Kohyama, Catherine Whitman, and Erik S. Runkle

flowering response to photoperiod: day-neutral plants, short-day (SD) plants (SDP), and long-day (LD) plants. Flowering of day-neutral plants is not influenced by photoperiod. Rapid flowering of SDP occurs when the day is short and the night is long and

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Joey H. Norikane

with a day-neutral plant, i.e., a plant whose flowering is insensitive to daylength ( Taiz and Zeiger, 2006 ), a growth regulator would be applied to the crop that would induce flowering. The entire crop would uniformly be flowering and ready for

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Sonali R. Padhye and Arthur C. Cameron

flowered under 9- and 16-h photoperiods after a 15-week treatment at 5 °C (Cameron et al., unpublished data). Because photoperiod did not influence flowering percentage or flowering time, D. gratianopolitanus ‘Bath's Pink’ was classified as a day-neutral

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Thomas M. Sjulin

, and they have been re-invested into rapid growth of the cultivated area since the system's introduction in the early 1990s. The area cultivated in this system now exceeds 2000 ha ( CSC, 2006 ). Significant amounts of strawberry day-neutral plants are

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Kelly Gude, Cary L. Rivard, Sara E. Gragg, Kimberly Oxley, Petros Xanthopoulos, and Eleni D. Pliakoni

, Portola, and San Andreas. The marketable fruit weight reported for day-neutral cultivars growing in high tunnels was 0.32 kg/plant ( Ruan et al., 2013 ). In our study, the average day-neutral plant produced marketable yields of 0.38 kg/plant in 2014 and 0

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Wook Oh, In Hye Cheon, Ki Sun Kim, and Erik S. Runkle

day-neutral plant ( Thomas and Vince-Prue, 1997 ), although some studies indicate that photoperiod, light quality, and light intensity can modify the flowering and subsequent growth of this plant ( Erwin et al., 2004 ; Heo et al., 2003 ; Neuray, 1973

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Daniel Rowley, Brent L. Black, Dan Drost, and Dillon Feuz

Handley, 1998 ; Pritts and Dale, 1989 ). In many production areas including the northeast United States, day-neutral cultivars are increasingly being used to extend the growing season and produce strawberries throughout the summer. Day-neutral plants are

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Stephanie A. Beeks and Michael R. Evans

and a day-neutral plant. All containers were placed in a glass-glazed greenhouse in Fayetteville, AR, on 1 m × 1 m × 15-cm ebb-and-flood benches. Greenhouse air temperatures ranged from 18 to 32 °C and light levels ranged from 350 to 440 μmol·m −2 ·s

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Ariana P. Torres and Roberto G. Lopez

obtain the response; and day-neutral plants, which are not induced in response to any photoperiod ( Erwin, 2009 ; Jackson, 2009 ; Thomas and Vince-Prue, 1997 ). Common groups also include the subclassification of facultative LD or SD plants (a given