Effect of Stimulation by Foliage Plant Display Images on Prefrontal Cortex Activity: A Comparison with Stimulation using Actual Foliage Plants

Abstract Most foliage plant varieties tested produce salable plants when fertilized with a wide range of rates. About 5 grams 19N-2.6P-10K (19-6-12) per 15 cm pot per 3 months resulted in best Dracaena fragrans ‘Massangeana’, Nephrolepis exaltata ‘Compacta’, and Philodendron s. oxycardium. No more than 2.4 grams per pot appears best for Chamaedorea elegans. Aglaonema ‘Silver Queen’, Aphelandra squarrosa ‘Dania’, Codiaeum variegatum ‘Banana’, Spathiphyllum ‘Petite’, Dieffenbachia maculata ‘Camille’ and Epipremnum aureum ‘Marble Queen’ grew best at about 10 grams per pot per 3 mos. Only P. s. oxycardium and C. elegans had a narrow requirement for fertilization levels. Electrical conductivity (EC) of leachate obtained from pots of best quality plants had a very wide range indicating leachate EC is a poor indicator for production of quality plants.

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Tropical Foliage Plant Development: Origin of New Cultivars

EDIS ◽

10.32473/edis-ep356-2008 ◽

2008 ◽

Vol 2008 (2) ◽

Author(s):

Richard J. Henny ◽

Jianjun Chen

Keyword(s):

Plant Development ◽

Induced Mutations ◽

Fact Sheet ◽

Foliage Plants ◽

Foliage Plant ◽

New Cultivars ◽

Selection Of ◽

Commercial Trade

ENH-1092, a 5-page illustrated fact sheet by R.J. Henny and J. Chen, describes three avenues for new tropical foliage plants to enter the commercial trade — plant acquisition and collection from the wild, selection of natural or induced mutations, and hybridization — and how new introductions are evaluated. Includes references. Published by the UF Department of Environmental Horticulture, January 2008. ENH1092/EP356: Tropical Foliage Plant Development: Origin of New Cultivars (ufl.edu)

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Controlled Release Urea Fertilizers Affect the Growth and Quality of Selected Foliage Plants

HortScience ◽

10.21273/hortsci.30.4.857b ◽

1995 ◽

Vol 30 (4) ◽

pp. 857B-857

Author(s):

Paul K. Murakami ◽

Fred D. Rauch

Keyword(s):

Controlled Release ◽

Nitrogen Sources ◽

Plant Production ◽

Foliage Plants ◽

Coated Urea ◽

Foliage Plant ◽

The Cost ◽

N Rates ◽

Controlled Release Urea

Three formulations of an encapsulated urea product and one sulfur-coated urea were evaluated at 0 to 4 times the recommended rate on Chomaedorea elegans, Chomaedorea seifrizii, Chrysalidocarpus lutescens, Spathiphyllum `Tasson', and Rhapis excelsa against a standard controlled-release fertilizer at equal N rates. Each plant species responded differently to the fertilizer sources. Chomaedorea seifrizii and Spathiphyllum `Tasson' did not exhibit preferences for fertilizer source from top-growth measurements. Chomaedorea elegans, Chrysalidocarpus lutescens, and Rhapis excelsa growth measurements indicate that fertilizer source affected growth and quality of the plants. The general recommendation for foliage plant production is an equal ratio of ammoniacal to nitrate nitrogen sources. Economically, this ratio makes the fertilizer more expensive than other traditional fertilizers. The use of a controlled-release urea fertilizer has the benefit of being a cheaper source of N and would lower the cost of production, but results on the selected foliage plants indicate that the fertilizer composition is important in plant production.

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Consumer Response to Novel Indoor Foliage Plant Attributes: Evidence from a Conjoint Experiment and Gaze Analysis

HortScience ◽

10.21273/hortsci.50.10.1524 ◽

2015 ◽

Vol 50 (10) ◽

pp. 1524-1530 ◽

Cited By ~ 9

Author(s):

Alicia Rihn ◽

Hayk Khachatryan ◽

Benjamin Campbell ◽

Charles Hall ◽

Bridget Behe

Keyword(s):

Consumer Preferences ◽

Production Method ◽

Organic Production ◽

Plant Production ◽

Voc Removal ◽

Foliage Plants ◽

Foliage Plant ◽

Conjoint Experiment ◽

Plant Attributes ◽

Purchase Likelihood

A rating-based conjoint experiment combined with eye-tracking analysis was used to investigate the effect of plant attributes on consumer purchase likelihood for indoor foliage plants. The experiment assessed the effects of plant type (Dracaena marginata Lam., Guzmania lingulata, or Spathiphyllum wallisii Regel), volatile organic compound (VOC) removal capacity (high, low, or none specified), price ($10.98–14.98/plant), production method [certified organic, organic production (not certified), or conventional], and origin (in-state, domestic, or imported) on consumer preferences. An ordered logit model was used to analyze the data. Organic production methods, in-state origin, domestic origin, and high VOC removal increased participants’ purchase likelihood. Visually attending to the highest price point ($14.98) increased consumers’ purchase likelihood. Age, gender, child (<12 years), pet, relationship status, education, and ethnicity affected participants’ purchase likelihood for indoor foliage plants. Purchasing barriers for indoor foliage plants are also discussed. Results have implications for indoor foliage plant growers and retailers as they produce, promote, and sell their products.

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`Sterling' Dieffenbachia

HortScience ◽

10.21273/hortsci.41.5.1356 ◽

2006 ◽

Vol 41 (5) ◽

pp. 1356

Author(s):

R. J. Henny ◽

J. Chen ◽

D.J. Norman

Keyword(s):

Plant Breeding ◽

Breeding Program ◽

Breeding Programs ◽

Foliage Plants ◽

Ornamental Foliage Plants ◽

Plant Breeding Program ◽

Foliage Plant ◽

Research And Education ◽

Interior Environments ◽

New Cultivars

Species and cultivars of Dieffenbachia Schott. (Araceae Juss.) have been important ornamental foliage plants for many decades. Their attractive foliar variegation, adaptability to interior environments, and ease of production are major reasons for their importance as ornamental foliage plants. Approximately 20 cultivars are commercially produced in Florida. Previously, most new cultivars were clones introduced from the wild or chance mutations of existing cultivars. Currently, cultivars are introduced into production from plant breeding programs (Henny 1995a, b; Henny and Chen, 2003; Henny et al., 1987). The hybrid Dieffenbachia `Sterling' was developed by the tropical foliage plant breeding program at the Mid-Florida Research and Education Center.

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Comparison of Physiological and Psychological Relaxation Using Measurements of Heart Rate Variability, Prefrontal Cortex Activity, and Subjective Indexes after Completing Tasks with and without Foliage Plants

International Journal of Environmental Research and Public Health ◽

10.3390/ijerph14091087 ◽

2017 ◽

Vol 14 (9) ◽

pp. 1087 ◽

Cited By ~ 16

Author(s):

Sin-Ae Park ◽

Chorong Song ◽

Yun-Ah Oh ◽

Yoshifumi Miyazaki ◽

Ki-Cheol Son

Keyword(s):

Heart Rate ◽

Heart Rate Variability ◽

Prefrontal Cortex ◽

Foliage Plants

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Two Nandina domestica Cultivars Perform Well as Interior Foliage Plants in Market Evaluations

HortScience ◽

10.21273/hortsci.28.9.946 ◽

1993 ◽

Vol 28 (9) ◽

pp. 946-947

Author(s):

Bridget K. Behe ◽

C. Fred Deneke ◽

Gary J. Keever

Keyword(s):

Relative Humidity ◽

Plant Quality ◽

Foliage Plants ◽

Quality Ratings ◽

Foliage Plant ◽

Quality Rating

Tissue-cultured plugs of Nandina domestica Thunb. `Hat-hour Dwarf' and `San Gabriel' were grown in 1.5-liter pots under 30%, 47%, or 62% shade. After 20 weeks, plants were moved to a simulated consumer environment (SCE) maintained at 21C, ≈60% relative humidity, and a 12-hour photoperiod with an irradiance of 7 μmol·m -2·s-1. Final quality ratings (after 35 weeks in the SCE) for both cultivars were good, but the plant quality of `San Gabriel' declined more quickly than that of `Harbour Dwarf'. Final quality rating of `Harbour Dwarf' grown under the highest percentage of shade was higher than that of plants grown under 30% or 47% shade; production shade percentages had no influence on the final quality rating of `San Gabriel'. Plants (of both cultivars) grown in 0.6-liter (11-cm-diameter) pots were test-marketed through six supermarket floral departments and captured 16% of total 10- to 11-cm-size foliage plant sales. Sixty percent of consumers indicated the plant's “newness” as the primary consideration for its purchase. These two N. domestica cultivars could be marketed successfully as interior foliage plants.

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Foliage Plants Cause Physiological and Psychological Relaxation as Evidenced by Measurements of Prefrontal Cortex Activity and Profile of Mood States

HortScience ◽

10.21273/hortsci11104-16 ◽

2016 ◽

Vol 51 (10) ◽

pp. 1308-1312 ◽

Cited By ~ 21

Author(s):

Sin-Ae Park ◽

Chorong Song ◽

Ji-Young Choi ◽

Ki-Cheol Son ◽

Yoshifumi Miyazaki

Keyword(s):

Prefrontal Cortex ◽

Positive Emotions ◽

Near Infrared ◽

Mood State ◽

Nir Spectroscopy ◽

Self Report ◽

Short Exposure ◽

Foliage Plants ◽

Relaxation Effects ◽

Hb Concentration

The study’s objective was to investigate the effects of foliage plants on prefrontal cortex activity and subjective assessments of psychological relaxation. In a crossover experimental design, 24 male university students in their 20s observed a container with and without foliage plants for 3 minutes while oxyhemoglobin (oxy-Hb) concentration in the prefrontal cortex was continuously measured with a portable near-infrared (NIR) spectroscopy device. Afterward, subjective evaluations of emotions were obtained via two self-report questionnaires: a modified semantic differential (SD) method and the Profile of Mood State questionnaire (POMS). Oxy-Hb concentration in the right prefrontal cortex was significantly lower in subjects who viewed the foliage plants than in those who did not, indicating a physiologically relaxed state. The subjects also reported in the SD method significantly more positive emotions (e.g., comfortable, natural, and relaxed) associated with viewing the foliage plants. In the POMS, a significant positive effect on psychological relaxation when subjects viewed the foliage plants was shown. Thus, we conclude that foliage plants have both physiological and psychological relaxation effects in males even after only short exposure.

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