Photoselective and photoluminescent films and effects on the plant growth. Photoselective and photoluminescent plastic films for protected cultivation modify the spectral distribution of the solar radiation thus influencing plant growth. This paper shows the results of the tests carried out at the experimental farm of the University of Bari from December 2006 to September 2007; two photoselective films (GREEN4% and GREEN2%), three photoluminescent films (RED, BLUE and RED-BLUE) and one low density polyethylene film were used to cover greenhouses where cherry and peach trees were grown. The lowest vegetative activity was recorded for the trees grown in open field in comparison with the trees grown inside the greenhouses. The photoselective films influenced positively the growth of the trees, especially the GREEN4% film. Among the photoluminescent films the RED film was more efficient in increasing the vegetative activity; it was due to the film capacity of absorbing UV radiation and re-emitting it in the wavelength band of the red radiation, which is very efficient for photosynthesis.
Film foto selettivi e fotoluminescenti ed effetti sulla crescita delle piante
SCHETTINI, Evelia;SCARASCIA MUGNOZZA, Giacomo;VOX, Giuliano
2010-01-01
Abstract
Photoselective and photoluminescent films and effects on the plant growth. Photoselective and photoluminescent plastic films for protected cultivation modify the spectral distribution of the solar radiation thus influencing plant growth. This paper shows the results of the tests carried out at the experimental farm of the University of Bari from December 2006 to September 2007; two photoselective films (GREEN4% and GREEN2%), three photoluminescent films (RED, BLUE and RED-BLUE) and one low density polyethylene film were used to cover greenhouses where cherry and peach trees were grown. The lowest vegetative activity was recorded for the trees grown in open field in comparison with the trees grown inside the greenhouses. The photoselective films influenced positively the growth of the trees, especially the GREEN4% film. Among the photoluminescent films the RED film was more efficient in increasing the vegetative activity; it was due to the film capacity of absorbing UV radiation and re-emitting it in the wavelength band of the red radiation, which is very efficient for photosynthesis.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
