Navigation Links
LEDs shine in bedding plant production study
Date:7/21/2014

der 85:15 red:blue LEDs compared with those grown under high-pressure sodium lamps. Stem caliper of Antirrhinum, Pelargonium, and Tagetes was 16%, 8%, and 13% larger, respectively, for seedlings grown under the 85:15 red:blue LEDs compared with seedlings grown under HPS lamps. The quality index was significantly higher for Petunia, Salvia, and Viola under 85:15, 70:30, and 100:0 red:blue LEDs than under HPS lamps, respectively. Overall, the results indicate that seedling quality for the majority of the species tested under supplemental light LEDs providing both red and blue light was similar or higher than those grown under high-pressure sodium lamps.

"Our results indicate that providing supplemental lighting from LEDs or high-pressure sodium lamps has a positive influence on seedling root dry mass, height, and stem caliper leading to high-quality bedding plant seedlings when solar light is limited," Lopez and Randall noted. "A light ratio of 85:15 red:blue light could be a good combination for greenhouse LED supplemental lighting of bedding plant plugs. However, it is important to remember that although blue LEDs have a higher electrical conversion efficiency compared with red LEDs, blue light is a higher energy light, which increases energy consumption as higher proportions of blue are used."


'/>"/>

Contact: Michael W. Neff
mwneff@ashs.org
703-836-4606
American Society for Horticultural Science
Source:Eurekalert

Page: 1 2

Related biology news :

1. New study shines light on barriers to diabetes care in NYC Bangladeshi community
2. Tiny probes shine brightly to reveal the location of targeted tissues
3. Sunshine, biofuel and the tides, oh my!
4. Greenphire CEO Sam Whitaker speaks on Sunshine Act and Clinical Trial Payments
5. Shiner Beers launches nationwide support of TGen diabetes studies
6. Researchers shine light on how stress circuits learn
7. Scientists shine light on worlds least-studied bat
8. Rice synthetic biologists shine light on genetic circuit analysis
9. Work shines light on Hox genes responsible for firefly lantern development
10. National AOA Research Fellowship will help shine light on skin cancer
11. Researcher shines light on the search for new drugs
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:12/17/2014)... 2014  Automation is fundamentally transforming the travel ... at international borders. Over the past decade, ePassports, ... veteran travelers to self process through border control ... at an increasing number of airports, seaports, and ... According to Maxine Most , Principal at ...
(Date:12/11/2014)... 2014 Research and Markets ... ( http://www.researchandmarkets.com/research/9ql3kr/biometrics_market ) has announced the addition of ... report to their offering. One ... adoption of multimodal biometric systems. Multimodal biometric systems ... for verification and identification purposes. This helps to ...
(Date:12/10/2014)... -- You,ve been here before: you desperately need to sign ... site key or the answer to your secret question. What,s ... Today, Hoyos Labs , a digital infrastructure ... put an end to the frustration that comes with usernames, ... leverages a user,s smartphone to acquire his or her biometrics ...
Breaking Biology News(10 mins):Automated Border Control (ABC) Transforms the Global Travel Experience With More Than 2500 ABC eGates and APC Kiosks Deployed In Airports, Seaports, and Land Borders Worldwide 2Biometrics Market in India 2015-2019: Key Vendors are 3M Cogent, NEC, Safran and Suprema 2The Password is Finally Dead: Launch of 1U Mobile App Eliminates Need for All Usernames and Passwords 2The Password is Finally Dead: Launch of 1U Mobile App Eliminates Need for All Usernames and Passwords 3
... practice yoga showed statistically significant improvements in disease activity, ... EULAR 2011 Annual Congress. , The results of the ... 47 patients (26 yoga patients and 21 controls) demonstrate ... which is one of the gentler styles of yoga, ...
... times more likely to develop osteoporosis compared to healthy people ... risk factors for osteoporosis, according to a study presented today ... of 1,030 people compares the extent of bone mineral density ... two physical locations in the body. The results demonstrated that ...
... of 300 patients demonstrated that 22% of patients ... (experiencing difficulty identifying and describing emotions) compared to ... study showed that higher levels of alexithymia were ... groups (Pearson,s correlation* (r) ≥ 0.32, p ...
Cached Biology News:Studies show siginificant benefits of yoga in 2 conditions 2
(Date:12/17/2014)... (PRWEB) December 17, 2014 Based ... the overall surgical imaging market is dominated by ... the surgical imaging market. These players include GE ... Ziehm Imaging (Germany). , Full Report Copy ... of GE Healthcare can be attributed to its ...
(Date:12/17/2014)... 17, 2014 Once more, EMAAR ... larger packaged waste water treatment plant to phase one ... City (KAEC). Two years ago Bioshaft successfully supplied and ... serving two residential towers with an occupancy of 900 ... quarter million gallons per day and was signed on ...
(Date:12/17/2014)... CA (PRWEB) December 17, 2014 Audacity, ... activation agency and member of the Huntsworth Health Group, ... to its executive team. In her role, Gonzales will ... , “We are incredibly honored to welcome a talent ... Chief and CEO, Gaëtan Fraikin. “She is a proven ...
(Date:12/17/2014)... SOUTH SAN FRANCISCO, Calif. , Dec. 17, ... positive results of a Phase 2 study evaluating ... for the treatment of patients with severe, chronic ... the current standard of care, including topical steroids ... endpoint was percent change in Visual Analog Scale ...
Breaking Biology Technology:Global Refurbished Surgical Imaging Market by Product & Application is Estimated to Reach $1.25 Billion by 2019 - New Research Report by MarketsandMarkets 2Global Refurbished Surgical Imaging Market by Product & Application is Estimated to Reach $1.25 Billion by 2019 - New Research Report by MarketsandMarkets 3Global Refurbished Surgical Imaging Market by Product & Application is Estimated to Reach $1.25 Billion by 2019 - New Research Report by MarketsandMarkets 4Audacity Welcomes Healthcare Communications Expert Jamie Gonzales as Senior Vice President of Client Services 2Velocity Pharmaceutical Development, LLC and Tigercat Pharma, Inc. Announce Phase 2 Results for VPD-737 in Patients With Chronic Pruritus 2Velocity Pharmaceutical Development, LLC and Tigercat Pharma, Inc. Announce Phase 2 Results for VPD-737 in Patients With Chronic Pruritus 3Velocity Pharmaceutical Development, LLC and Tigercat Pharma, Inc. Announce Phase 2 Results for VPD-737 in Patients With Chronic Pruritus 4
... report commissioned by the U.S. Department of Energy has ... of producing hydrogen fuel from sunlight is the only ... meet future cost targets set by the federal agency. ... Alan Weimer,s research team of CU-Boulder,s chemical and biological ...
... Stem Cell Assurance, Inc. (SCLZ.PK) announced today ... Securities on Form 10 pursuant to Section 12(g) of the ... financial statements as of December 31, 2009 and 2010 and ... July 11, 2011, the Company will become an SEC reporting ...
... Dan Neumeister, FACHE, principal of Neumeister Healthcare Management Services ... selected by Chase Brexton Health Services (CBHS) of Baltimore, ... effective May 1, 2011. Neumeister is serving in this ... fills the position. As CBHS,s top ...
Cached Biology Technology:CU method projected to meet DOE cost targets for solar thermal hydrogen fuel production 2Regional Healthcare Management Firm Goes National 2