ISHS Acta Horticulturae 614: VI International Symposium on Protected Cultivation in Mild Winter Climate: Product and Process Innovation
AGRONOMICAL EVALUATION OF COVERING FILMS BASED ON INNOVATIVE LIGHT STABILIZER SYSTEMS |
| Authors: | G. Magnani, M. Bonora, A. Landuzzi |
| Keywords: | plasticulture, greenhouse, additive, film degradation, transmittance, horticulture, Cucurbita pepo L.,Lycopersicon lycopersicum L., Dianthus caryophyllus L. |
| Abstract:
Agronomic experiments have been carried out to evaluate the agronomic behaviour of greenhouse films differently stabilized. Three trials started in 1999 in Tuscany (Italy): two of these trials were carried out on vegetable cultivations (tomato and zucchini) during the spring period and one on cut flowers (carnation) during a whole year. A film containing a traditional stabilizing system (IT-1) was compared with 2 films containing innovative systems (IT-2 and IT-3). Besides the evaluation of the agronomic performance of these films, their behaviour during artificial and natural exposure is tested as well. The covering films, based on innovative “Light Stabilizer” systems, have shown excellent chemical resistance coupled with superior light and thermal stability. Additionally, with the use of the innovative films IT-2 and IT-3 the production parameters of the tested crops have been improved. The IT-2 film transmits light by diffusing it inside the greenhouse to a greater extent than the traditional films. Most probably this could be a positive effect on the physiology of the plant and consequently on its yield. | |
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