About Careers Internship MedBlog Contact us
Medindia LOGIN REGISTER
Advertisement

LED Lighting Treatments Can Affect Greenhouse Tomato Quality

by Bidita Debnath on December 22, 2015 at 11:27 PM
Font : A-A+

 LED Lighting Treatments Can Affect Greenhouse Tomato Quality

Greenhouse tomato growers often need to rely on supplemental lighting to satisfy increasing consumer demand for locally grown, fresh tomatoes during off-seasons.

Tomato growers are looking to light-emitting diodes (LEDs), favored for their energy-saving potential, as an alternative to high-pressure sodium lamps (HPS) in greenhouse operations. A recent study offers new information about the feasibility of using LEDs in greenhouse tomato operations.

Advertisement


Michael Dzakovich, Celina Gómez, and Cary Mitchell from the Department of Horticulture and Landscape Architecture at Purdue University published the study of supplemental lighting experiments in HortScience (October 2015). They noted that light-emitting diodes are becoming a viable alternative to high-pressure sodium supplementation. "There is great interest in (LEDs) potential to influence the phytochemical and flavor profile of various high-value crops," the authors said. "However, little fruit quality-attribute work with LEDs has been done on a long-duration, full grow-out of tomatoes."

The researchers conducted three separate studies to investigate the effect of supplemental light quantity and quality on greenhouse-grown tomatoes. Plants were grown either with natural solar radiation only (the control), natural solar radiation plus supplemental lighting from high-pressure sodium lamps, or natural solar radiation plus supplemental light from intracanopy (IC) LED towers. The scientists analyzed plant responses by collecting chromacity, Brix, titratable acidity, electrical conductivity, and pH measurements. "Contrary to our hypothesis, fruit quality was largely unaffected by direct, IC supplemental lighting," the authors said.
Advertisement

The study also included sensory panels in which tasters ranked tomatoes for color, acidity, and sweetness using an objective scale. The tasters were also asked to rank tomato color, aroma, texture, sweetness, acidity, aftertaste, and overall approval using a five-point hedonic (preference) scale. "By collecting both physicochemical and sensory data, we were able to determine whether statistically significant physicochemical parameters of tomato fruit also reflected consumer perception of fruit quality," the authors said. The sensory panels indicated that physicochemical differences were not noticeable to tasters; in fact, the tasters on the testing panels could not discern between tomatoes from different supplemental lighting treatments or those from the unsupplemented controls.

"This study demonstrated that greenhouse tomato fruit quality was unaffected by both the type of supplemental lighting as well as supplemental lighting per se," the scientists said. "Physicochemical measurements indicated only slight variation among fruits grown under different lighting regimes, and these findings were supported by nonsignificant differences in sensory attributes."

The authors said the results are promising for tomato growers interested in reducing energy consumption in greenhouses. "Supplemental IC-LED lighting at the intensities and wavelengths used in this study did not negatively affect greenhouse tomato fruit quality and demonstrates a potential alternative for overhead high-pressure sodium supplementation," they said.

Source: Eurekalert
Advertisement

Advertisement
News A-Z
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
What's New on Medindia
Alarming Cesarean Section Trends in India - Convenience or Compulsion of Corporate Healthcare
Quiz on Low-Calorie Diet for Diabetes
World Heart Day in 2022- Use Heart for Every Heart
View all
Recommended Reading
News Archive
Date
Category
Advertisement
News Category

Medindia Newsletters Subscribe to our Free Newsletters!
Terms & Conditions and Privacy Policy.

More News on:
Tomato Food Combinations that Affect Your Well-being Air Pollution 

Most Popular on Medindia

Turmeric Powder - Health Benefits, Uses & Side Effects Hearing Loss Calculator Sinopril (2mg) (Lacidipine) Find a Hospital Color Blindness Calculator Drug Interaction Checker Pregnancy Confirmation Calculator Drug Side Effects Calculator Blood Pressure Calculator The Essence of Yoga
This site uses cookies to deliver our services. By using our site, you acknowledge that you have read and understand our Cookie Policy, Privacy Policy, and our Terms of Use
×

LED Lighting Treatments Can Affect Greenhouse Tomato Quality Personalised Printable Document (PDF)

Please complete this form and we'll send you a personalised information that is requested

You may use this for your own reference or forward it to your friends.

Please use the information prudently. If you are not a medical doctor please remember to consult your healthcare provider as this information is not a substitute for professional advice.

Name *

Email Address *

Country *

Areas of Interests