EFFECT OF PLASTIC FILMS ON DAY-NEUTRAL STRAWBERRY YIELDS

F. Rossi, G. Cristoferi, L. Bagioli, S. Camporeale
The high economic inputs of tunnel-grown strawberries in northern Italy evidence the necessity of better management. Trials were carried out in Cesena (FO) to determine yield efficiency levels of the day-neutral cultivars Brighton and Fern. Six plastic films (treated polyethylene; Escorene double layer; treated polyethylene + EVA patilux 18% - double layer; EVA patilux 18%; EVA patilux 18% + treated polyethylene - double layer; MultiEVA 12% - triple layer) were tested also in relation to their environment effects.

All the plastic films except treated polyethylene exerted a positive control on heat thermal efficiency. Radiant energy levels were not different among the tunnels in regard to their spectral transmission characteristics. Tunnel films did reduce light intensity. The tunnels had diverse effects on the yields of the two tested cultivars: Brighton was more affected than Fern. The most effectie for both bearing earliness and cropping were EVA, EVA triple layer and EVA subtended with treated polyethylene. These films advanced the spring crop by one week and extended the autumn one, thereby increasing total yield. Both tunnel-grown cultivars showed increased yieldsin comparison to open-field cultivation.

Rossi, F., Cristoferi, G., Bagioli, L. and Camporeale, S. (1989). EFFECT OF PLASTIC FILMS ON DAY-NEUTRAL STRAWBERRY YIELDS. Acta Hortic. 265, 235-242
DOI: 10.17660/ActaHortic.1989.265.35
https://doi.org/10.17660/ActaHortic.1989.265.35

Acta Horticulturae