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C. A. Conover, R. T. Poole, and T. A. Nell


Brassaia actinophylla Endl., Chamaedorea elegans Mart., Dieffenbachia maculata (Lodd.) G. Don ‘Exotica’, Dracaena marginata Lam., and Ficus benjamina L. were grown for 1 year under 13 or 26 μE m−2sec−1 from Cool White fluorescent lamps for 12, 18, or 24 hours daily durations. Increasing light duration to 24 hours daily decreased quality of all plants tested, with Brassaia, Chamaedorea, and Dieffenbachia being most affected. The primary symptoms resulting from constant light were foliar chlorosis and decrease in plant quality, although necrotic spotting appeared at times. By experiment termination, best plants overall were associated with 26 μE m−2sec−1 light for 12 or 18 hours duration and poorest with 26 μE m−2sec−1 light and 24 hours duration. A second factorial experiment with Dieffenbachia and Dracaena tested effects of 3 fertilizer levels (0, 0.67, or 1.30 g Osmocote/3 months per 15-cm pot) under 2 light intensities (13 or 26 μE m−2sec−1) and 2 light durations (12 or 24 hours) on plant quality. Higher fertilizer levels had a limited effect on plant quality, while influence of light intensity and duration was similar to the initial experiment.

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Timothy W. Miller and Carl R. Libbey

, planted to two narcissus hybrids (early-blooming ‘Dutch Master’ adjacent to late-blooming ‘Flower Carpet’) displayed differential foliar chlorosis. Emerging ‘Flower Carpet’ foliage was chlorotic and shoot growth was delayed compared to the normal

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Neil C. Bell and James Altland

spp.) infestation in Summer 2004 caused by the irrigation during establishment. Data collected included plant height and width, flowering season, cold hardiness evaluation, and plant form and foliage quality. Plant height (ground level to tallest shoot

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Kwang Jin Kim, Myeong Il Jeong, Dong Woo Lee, Jeong Seob Song, Hyoung Deug Kim, Eun Ha Yoo, Sun Jin Jeong, Seung Won Han, Stanley J. Kays, Young-Wook Lim, and Ho-Hyun Kim

. Woody and herbaceous foliage plants and ferns were acclimated at a light intensity of 20 ± 2 μmol·m −2 ·s −1 and the herbs and Korea native plants at 60 ± 3 μmol·m −2 ·s −1 ; the photoperiod for all species was 12/12 h (day/night). Table 1

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Iftikhar Ahmad, Brian E. Whipker, and John M. Dole

, typically on the immature foliage first), days to first wilt were recorded and again irrigated to FC. When each plant showed wilting again, days to second wilt were recorded. Leaf color was measured on a scale of 1–5, where 1 = yellow, 2 = pale green, 3

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Mack Thetford, Gary W. Knox, and Edwin R. Duke

. Eastern gamagrass is a bunch grass native to the eastern United States and is best adapted to wet habitats ( Henson and Fenchel, 2007 ). All plants survived the trial period ( Tables 1 and 2 ). For plants in GC foliage height was greater with

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Fumiko Ishizuna and Nobuhiro Tsutsumi

). ( C ) A rhizome collected during the dormant season (25 Nov. 2010, 199 d after planting). pr = primary rhizome; rh = rhizome; st = shoot tip; i-n = internode; n = node; l = foliage leaf; p = petiole; ab = axillary bud; ro = roots; dashed

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Renata Goossen and Kimberly A. Williams

types of data were collected: root system assessment and foliage/flower assessment. Root systems were evaluated on 0, 1, 2, 3, 4, 5, 6, 7, and 10 DAT. Roots were assessed by removing each plant from its container, then rating and photographing them. To

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Michael J. Havey

numbers of sprays and potentially delay development of insecticide resistance. Onion plants with glossy foliage suffer significantly less thrips damage relative to waxy plants ( Boateng et al., 2014 ; Cramer et al., 2014 ; Damon et al., 2014 ; Diaz

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Kenneth R. Summy and Christopher R. Little

growth, which consists primarily of Capnodium and related fungal species ( Farr et al., 1989 ; Reynolds, 1999 ). Fig. 1. Examples of color RGB and color infrared photographs (insets) of foliage acquired in a whole plant context and used to