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Kristin L. Getter

probability values for plant growth index defined as [(plant height + plant width 1 + plant width 2)/3] shown by species and week number, modeled against average daily temperature (ADT) [16, 22, or 28 °C (60.8, 71.6, or 82.4 °F)] and paclobutrazol (PBZ) spray

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Yin-Tung Wang

plants per temperature regimen. Analysis of variance was performed on the data in both experiments, except for number of plants flowered. Results Expt. 1. Plants at the higher average daily temperature (ADT, 27.5 °C, 30/25 °C, or 25

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Cheryl L. Reese and John E. Erwin

The interaction between day/night temperature (DT/NT) and irradiance during the photoperiod prior to the inductive night on Pharbitis nil (L.) cv. Violet flower induction was studied. Plants exposed to 12 or 18 °C NT did not flower regardless of DT. When NT was 24 or 30 °C, percent flowering plants increased progressively as DT increased from 12 to 30 °C. Percent flowering plants and total flower bud number per plant was greatest when seedlings were induced with a 24 or 30 °C DT/30 °C NT regime. DT/NT did not affect the node number to first flower. Irradiance did not affect flowering. Temperature effects on P. nil flowering could be described as a function of average daily temperature, where flowering increased as temperature rose from 22 to 30 °C.

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Kellie J. Walters and Christopher J. Currey

throughout the day, plants are able to integrate the temperature and, thus, average daily temperature (ADT) is used to describe the effects of temperature on plants. The ADT is the average temperature during a 24-h period and it primarily controls the rate of

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Joshua R. Gerovac, Roberto G. Lopez, and Neil S. Mattson

( Currey et al., 2014 ). Greenhouse growers use average daily temperature (ADT) to predict when crops will be marketable ( Blanchard and Runkle, 2011a ). It is well documented that temperature controls the rate of plant development, including time to unfold

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Jens J. Brøndum and Royal D. Heins

Abbreviations: ADT, average daily temperature; DIF, day temperature - night temperature; DT, day temperature; DTF, days to flower; NT, night temperature; PPF, photosynthetic photon flux; SD, short day. 1 Current address: Danish Research Service for

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John E. Erwin, Royal D. Heins, and Roar Moe

Abbreviations: ADT, average daily temperature; DIF, difference; DT/NT, day/night temperature; FR, far red; LD, long day; NI, night interruption; R, red; SD, short day. 1 Current address: Dept. of Horticultural Science, Univ. of Minnesota, 1970

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M.P. Kaczperski, W. H. Carlson, and M.G. Karlsson

Petunia × hybrids `Snow Cloud' plants were grown under 25 temperature combinations ranging from 10 to 30C and at photosynthetic photon flux levels of 100 or 200 μmol·s-1·m-2 (6.5 and 13 mol·day-1·m-2, respectively). Days to flower-was a quadratic function of average temperature, with 25C being the optimum temperature for minimal tire-e to flower at 200 μmol·s-1·m-2. Plant height increased “linearly and average internode length increased quadratically as day temperature increased. The number of lateral shoots decreased quadratically as average temperature increased, and the average length of each shoot decreased quadratically as day temperature increased.

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Ariana P. Torres and Roberto G. Lopez

station; Spectrum Technologies, Plainfield, IL) positioned above the center of each bench. For Expt. 1, the average daily temperatures (ADT) and DLIs during propagation were 23.1 ± 0.8 °C and 24.4 ± 1.5 °C and 9.3 and 11.3 mol·m −2 ·d −1 for replications

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A. Maaike Wubs, Yun T. Ma, Ep Heuvelink, Lia Hemerik, and Leo F.M. Marcelis

to fresh fruit weight or dry fruit weight. Two experiments were used, one in which one cultivar was grown at three different average daily temperatures and one with six different cultivars with varying fruit sizes. Materials and Methods Experiments