Growth, yield and development of strawberry cv. 'Elsanta' under novel photoselective film clad greenhouses
Fletcher, J.M., Tatsiopoulou, A., Hadley, P., Davis, F.J. and Henbest, R.G.C. (2004) Growth, yield and development of strawberry cv. 'Elsanta' under novel photoselective film clad greenhouses. In: Papadopoulos, A.P. (ed.) Protected cultivation 2002: in search of structures, systems and plant materials for sustainable greenhouse production. Acta Horticulturae, 633. International Society for Horticultural Science, Leuven, pp. 99-106. ISBN 9789066056275
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Film greenhouse claddings are typically used to protect horticultural crops from low temperature and high rainfall conditions. However, a range of novel plastic films have been developed which filter specific radiation wavelengths with the aim of providing the grower with greater control of crop growth and development. A replicated experiment was conducted in 8 small experimental greenhouses, covered with different photoselective films characterised by a range of red/far-red ratios and PAR transmissions to study their effects on the growth, yield and quality of the strawberry cv. 'Elsanta'. Marketable yield per plant was 51% greater under the film with the highest light transmission (control) compared with the lower light transmission films. Similarly, unmarketable fruit number and average non-marketable individual fruit weight per plant was lowest under films with higher light transmissions and higher under lower light transmission films. Cropping duration was longer under films with high R/FR. Also plants under high R/FR were more compact (due to shorter petiole lengths) compared to plants grown under low R/FR. The results are discussed in relation to the increased use of photoselective films in protected horticulture and the need for higher quality fruit and vegetables.
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