Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 430537
Title Continuous Light as a way to increase Greenhouse Tomato Production
Author(s) Velez Ramirez, A.I.; Heuvelink, E.; Ieperen, W. van; Vreugdenhil, D.; Millenaar, F.F.
Source In: Proceedings of the VIIth International Symposium on Light in Horticultural Systems, Wageningen, The Netherlands, October 14-18, 2012. - Leuven : ISHS - ISBN 9789066055452 - p. 51 - 58.
Event Leuven : ISHS - ISBN 9789066055452 VII International Symposium on Light in Horticultural Systems, Wageningen, 2012-10-15/2012-10-18
DOI https://doi.org/10.17660/ActaHortic.2012.956.3
Department(s) Laboratory of Plant Physiology
Horticultural Supply Chains
EPS-3
Publication type Contribution in proceedings
Publication year 2012
Abstract Tomato plants need six hours of darkness per day for optimal growth; therefore, photosynthesis does not take place for 25% of the day. If tomatoes could be grown under continuous light, a substantial increase in production is expected. In practice, however, continuous light-grown tomato plants develop a potentially lethal mottled chlorosis. Such continuous-light-induced injury is only poorly understood so far. Recently, we proposed a number of hypotheses that aim to explain the continuous-light-induced injury, and rediscovered that wild-tomato species were reported as continuous-light-tolerant. Here, we (i) present a simulation study which shows that if an ideal continuous-light-tolerant tomato genotype is used and no crop adaptations to continuous light are assumed, greenhouse tomato production could be 26% higher when using supplementary lighting for 24 h day-1 in comparison with using supplementary lighting only for 18 h day-1 during day time, and (ii) discuss expected changes in greenhouse energy budgets and alterations in crop physiological responses that might arise from cultivating tomatoes under continuous light.
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