Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Study shines light on ways to cut costs for greenhouse growers

24.01.2012
Greenhouse bedding plant growers can save themselves time, money or possibly both by giving cuttings in propagation more light, according to a Purdue University study.

Flower growers use cuttings from Central America and Africa to start spring bedding plants in greenhouses during winter and early spring. Those cloudy days and cool temperatures make propagation time- and energy-intensive.

Roberto Lopez, an assistant professor of horticulture, and horticulture graduate students Chris Currey and Veronica Hutchinson study ways to minimize inputs and production costs in the floriculture industry while improving product quality. Based on what they were hearing from growers, they realized that light wasn't getting the attention it needed from the industry.

"In their minds, temperature has always been the most important thing. They didn't think about light," Lopez said. "We knew that light was significant, but we realize we didn't know what level to recommend."

Currey said growers were concerned that using too much light would stress the cuttings and disrupt root development.

"The dogma has been to keep light low, but that actually made the cuttings take longer to root," said Currey, whose findings were published in the January issue of the journal HortScience.
Currey, Hutchinson and Lopez propagated nine popular spring bedding plants under differing amounts of light for two weeks. They took a quality index used in forestry and modified it for bedding plants to assess the quality of the plants based on the light levels. They measured stem length, stem caliper, shoot dry mass and root dry mass.

Overall, plants rooted faster with more light and the plants were higher quality. Both factors could increase profits for greenhouse growers, Lopez said.

"With reduced production time, you can save on production costs or increase your crop production by starting another second crop that wouldn't have been possible with reduced light," Currey said. "That's increased profits through greenhouse space savings or energy savings, as well as through a higher quality product."

A copy of the paper, with more specific light requirements, can be viewed at https://sharepoint.agriculture.purdue.edu/agriculture/flowers/publications.aspx

Next, Lopez and Currey plan to study the morphological and physiological changes associated with light and cutting propagation, as well as how LED lights can be used to add supplemental daily light for cuttings.

The Fred C. Glockner Foundation, U.S. Department of Agriculture Specialty Crop Research Initiative and the Indiana Flower Growers Association funded this research.

Writer: Brian Wallheimer, 765-496-2050, bwallhei@purdue.edu
Sources: Roberto Lopez, 765-496-3425, rglopez@purdue.edu
Chris Currey, 765-496-3425, ccurrey@purdue.edu

Ag Communications: (765) 494-2722;
Keith Robinson, robins89@purdue.edu
Agriculture News Page

Brian Wallheimer | EurekAlert!
Further information:
http://www.purdue.edu

More articles from Agricultural and Forestry Science:

nachricht Ammonium nitrogen input increases the synthesis of anticarcinogenic compounds in broccoli
26.04.2017 | University of the Basque Country

nachricht New data unearths pesticide peril in beehives
21.04.2017 | Cornell University

All articles from Agricultural and Forestry Science >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Making lightweight construction suitable for series production

More and more automobile companies are focusing on body parts made of carbon fiber reinforced plastics (CFRP). However, manufacturing and repair costs must be further reduced in order to make CFRP more economical in use. Together with the Volkswagen AG and five other partners in the project HolQueSt 3D, the Laser Zentrum Hannover e.V. (LZH) has developed laser processes for the automatic trimming, drilling and repair of three-dimensional components.

Automated manufacturing processes are the basis for ultimately establishing the series production of CFRP components. In the project HolQueSt 3D, the LZH has...

Im Focus: Wonder material? Novel nanotube structure strengthens thin films for flexible electronics

Reflecting the structure of composites found in nature and the ancient world, researchers at the University of Illinois at Urbana-Champaign have synthesized thin carbon nanotube (CNT) textiles that exhibit both high electrical conductivity and a level of toughness that is about fifty times higher than copper films, currently used in electronics.

"The structural robustness of thin metal films has significant importance for the reliable operation of smart skin and flexible electronics including...

Im Focus: Deep inside Galaxy M87

The nearby, giant radio galaxy M87 hosts a supermassive black hole (BH) and is well-known for its bright jet dominating the spectrum over ten orders of magnitude in frequency. Due to its proximity, jet prominence, and the large black hole mass, M87 is the best laboratory for investigating the formation, acceleration, and collimation of relativistic jets. A research team led by Silke Britzen from the Max Planck Institute for Radio Astronomy in Bonn, Germany, has found strong indication for turbulent processes connecting the accretion disk and the jet of that galaxy providing insights into the longstanding problem of the origin of astrophysical jets.

Supermassive black holes form some of the most enigmatic phenomena in astrophysics. Their enormous energy output is supposed to be generated by the...

Im Focus: A Quantum Low Pass for Photons

Physicists in Garching observe novel quantum effect that limits the number of emitted photons.

The probability to find a certain number of photons inside a laser pulse usually corresponds to a classical distribution of independent events, the so-called...

Im Focus: Microprocessors based on a layer of just three atoms

Microprocessors based on atomically thin materials hold the promise of the evolution of traditional processors as well as new applications in the field of flexible electronics. Now, a TU Wien research team led by Thomas Müller has made a breakthrough in this field as part of an ongoing research project.

Two-dimensional materials, or 2D materials for short, are extremely versatile, although – or often more precisely because – they are made up of just one or a...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Fighting drug resistant tuberculosis – InfectoGnostics meets MYCO-NET² partners in Peru

28.04.2017 | Event News

Expert meeting “Health Business Connect” will connect international medical technology companies

20.04.2017 | Event News

Wenn der Computer das Gehirn austrickst

18.04.2017 | Event News

 
Latest News

Wireless power can drive tiny electronic devices in the GI tract

28.04.2017 | Medical Engineering

Ice cave in Transylvania yields window into region's past

28.04.2017 | Earth Sciences

Nose2Brain – Better Therapy for Multiple Sclerosis

28.04.2017 | Life Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>