About Melanie Yelton

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So far Melanie Yelton has created 16 blog entries.

Poster – Light Emitting Diodes as an Alternative to Cool White Fluorescents for Healing of Grafted Tomato Transplants

October 25th, 2016|Poster, Research|

Previous work determined that light during the healing period influences morphology and quality of grafted tomatoes. Cool white fluorescent (CWF) at a photosynthetic photon flux of 100 μmol·m-2·s-1 is recommended for healing chambers. Light emitting diodes (LED) make possible optimizing the spectral requirements for healing.

Poster – Effects of Adjustment to Spectral Ratios of Supplemental LED Lighting on Miniature Rose Growth and Morphology

October 25th, 2016|Poster, Research|

Winter months in California have a Daily Light Integral (DLI) of 10-20, which is inadequate for optimal plant growth. To address this challenge, Light Emitting Diode (LED) lamps are beginning to be used in preference over High Intensity Discharge (HID) lamps for their higher energy efficiency and longevity.

Poster – Light as a Growth Variable: Spectral Ratio Tuning of Cannabis spp. for Quality and Vigor

October 25th, 2016|Cannabis, Poster, Research|

Recent increases in sole-source production of high value crops demands an increased understanding of light spectrum on plant morphology in order to optimize propagation, growth, and yield of plants. Traditionally, indoor cannabis production has primarily used High Pressure Sodium, or HPS, however the recent introduction of LED lighting has allowed for spectral control coupled with increased energy efficiency.

Poster – Searching for an Optimum Supplemental LED Intensity for Winter Production of Cut Gerbera at Northern Latitudes

October 25th, 2016|Poster, Research|

At higher latitudes, cut flower growers rely on supplemental lighting for maximizing production in the darker months. Horticultural LEDs have been proven to produce similar or better crops (in terms of yield and quality) compared with HPS; while also having longer lifespans, higher energy efficiencies & can be controlled in terms of spectral distribution & intensity. This project sought to determine the optimum light level for cut gerbera production during the 2015-16 supplemental lighting season (ie. Nov. thru Feb.) at higher latitudes

Poster – LED Lighting Can Control Plant Growth, Flavor and Aroma in Ocimum Basilicum (Basil)

October 13th, 2015|Poster, Research|

This study demonstrates the effects of different light ratios on basil morphology, flavor and aroma. Through the use of adjustable light treatments, growers can meet the needs of changing market demands.

Poster – Optimum Light Level for Snapdragon Production with LEDs

October 13th, 2015|Poster, Research|

This project sought to determine the optimum light level for cut snapdragon production during the 2014-15 supplemental lighting season (ie. Nov. to Mar) at higher latitudes.

Poster – Supplemental LED Lighting Increases Winter Tomato Production in Central North Carolina Greenhouse

October 13th, 2015|Poster, Research|

This study suggests LED lighting can be beneficial for tomato production even in areas of the country where supplemental lighting is not typically used.

Poster – LED Superior to HPS for Cut Gerbera Production

October 13th, 2015|Poster, Research|

LED supplemental lighting can produce as good or better cut gerbera crops than HPS lighting, but at a substantial energy savings.

Poster – Analysis of Arabidopsis Light-Sensitive Mutants Grown Under Different Ratios of LED or Fluorescent Lighting

October 13th, 2015|Poster, Research|

Overall, our findings suggest no reason to delay a transition to LEDs, even for studies involving light signaling.

Poster – LED Lighting and Phalaenopsis Orchids, Light Wavelength Effect on the Flowering Spike

October 13th, 2015|Poster, Research|

Selecting various wavelengths of light can influence the growth and morphology of horticultural crops including the currently popular Phalaenopsis orchid.

Poster – LEDs Control Growth and Flowering in Greenhouse-Grown Zinnia Marylandia

October 13th, 2015|Poster, Research|

These experiments suggest that light ratios may be able reduce the need for Plant Growth Regulators (PGRs) to obtain the desired plant characteristics for market.

Download the Research Brief on Lettuce Steering

March 26th, 2015|Research, Research Brief|

Download the Guelph HPS vs LED Gerbera Study

October 27th, 2014|Research, Study|

Download the Research Brief on Basil Steering

September 4th, 2014|Research, Research Brief|

Download the BTO Solutions Lettuce Study

November 8th, 2011|Research, Study|