Navigation Links
Photoselective film proves effective for controlling height in potted gardenia plants

MAGNESIA, GREECETo grow the high-quality potted plants preferred by consumers, many growers use chemical "regulators" designed to affect plant growth and development. The use of chemical growth retardants is standard practice in the production of compact gardenia plants; the chemicals are used to reduce plants' internode length, and encourage the production of lateral shoots that create aesthetically pleasing, spherical plants with plentiful flower buds. Chemical sprays are effective at reducing gardenia plant height, but need to be applied regularlya practice that increases the cost of production and contributes to environmental pollution.

Dr. Constantinos Kittas and his colleagues from the University of Thessaly School of Agricultural Sciences and the Agricultural University of Athens (Greece) published a study in HortScience in which they report on experiments with the use of a photoselective polyethylene greenhouse covering filma less expensive and more environmentally friendly alternative to chemical treatmentfor production of compact potted gardenia (Gardenia jasminoides Ellis) plants.

Two types of experiments were performed on gardenia cuttings rooted in rooting benches and on young potted plants grown under low tunnels. In both experiments, two types of cover materials were used: a photoselective polyethylene (P-PE), filtering light within the wavelength range 600 to 750 nm and a common polyethylene film (C-PE) routinely used in greenhouse practice. The experiments were carried out in a commercial plastic-covered greenhouse located on the coastal area of eastern Greece.

The researchers recorded photosynthetically active radiation, cover materials' spectral properties, air temperature, and relative humidity inside the rooting benches and under the low tunnels. Plant growth indicators (including main shoot length and leaf area and lateral shoot number, leaf area, and fresh and dry weight) were determined along the growth cycle.

According to Kittas, "The research revealed that photoselective plastic films with high values and high B:R ratios are able to reduce the height of gardenia plants. However, continued development of gardenia plants under a P-PE film results in unmarketable, low-quality plants without lateral shoots and a resulting low number of flowers."

Although the study determined that the use of photoselective plastic films for the production of potted compact gardenia plants can contribute to the reduction of chemical use, Kittas added that more information about the effect of light quality and quantity as well as the necessary period of treatment on gardenia cuttings and transplanted plants is needed before this technology is used in commercial greenhouses for compact potted gardenia plant production.


Contact: Michael W. Neff
American Society for Horticultural Science

Related biology news :

1. Taste, odor intervention improves cancer therapy, according to Virginia Tech, Wake Forest study
2. Queens University Belfast improves Malaysian public health
3. Study finds rescue course of antenatal steroids improves outcome in premature babies
4. Organic plant waste proves effective weed control for citrus trees
5. An essay proves that vegetation could recover in the ski resort of Sierra Nevada
6. Replacing corn with perennial grasses improves carbon footprint of biofuels
7. Microarray analysis improves prenatal diagnosis
8. First at-home test for vasectomized men proves to be safe, accurate
9. Junk DNA proves functional
10. For insulin sensitive overweight patients, 1 session of exercise improves metabolic health
11. Coating improves electrical stimulation therapy used for Parkinsons, depression, chronic pain
Post Your Comments:
(Date:11/17/2015)... 17, 2015 Paris ... --> Paris , qui s,est ... DERMALOG, le leader de l,innovation biométrique, a inventé le ... et empreintes sur la même surface de balayage. Jusqu,ici, ... l,autre pour les empreintes digitales. Désormais, un seul scanner ...
(Date:11/17/2015)... 2015 Pressure BioSciences, Inc. (OTCQB: PBIO) ("PBI" ... sale of broadly enabling, pressure cycling technology ("PCT")-based sample ... announced it has received gross proceeds of $745,000 from ... (the "Offering"), increasing the total amount raised to date ... closings are expected in the near future. ...
(Date:11/12/2015)... 2015  A golden retriever that stayed healthy despite ... has provided a new lead for treating this muscle-wasting ... Institute of MIT and Harvard and the University of ... Cell, pinpoints a protective gene that ... effects. The Boston Children,s lab of Lou Kunkel ...
Breaking Biology News(10 mins):
(Date:12/1/2015)... Dec. 1, 2015 Oxford Finance LLC ("Oxford"), ... life sciences and healthcare services companies, today announced the ... with MDRejuvena, Inc. ("the Company"). Proceeds from the loan ... of the Company,s Rejuvaphyl™ and daily skincare products. ... the MDRejuvena brand of high potency skincare products that ...
(Date:12/1/2015)... ... December 01, 2015 , ... RURO, Inc., ... selling system laboratory animal colony management software solution, ezColony®, is now available as ... IT resources., , Many organizations are moving to cloud-hosting ...
(Date:12/1/2015)... Texas (PRWEB) , ... December 01, 2015 , ... ... annual global meeting this month and Dr. J. Kyle Mathews will ... This includes the new single site hysterectomy. , An experienced urogynecologist, founder of ...
(Date:11/30/2015)... MIAMI (PRWEB) , ... November 30, 2015 , ... ... opening of a new, Good Manufacturing Practice (GMP) 10000 in the Santiago Marriott. ... technologies available, and is operated by a world-class team of qualified medical researchers ...
Breaking Biology Technology: