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 505325
Title Regulating flower and tuber formation in potato with light spectrum and day length
Author(s) Plantenga, F.D.M.; Siakou, M.; Bergonzi, S.; Heuvelink, E.; Bachem, C.W.B.; Visser, R.G.F.; Marcelis, L.F.M.
Source Acta Horticulturae 1134 (2016). - ISSN 0567-7572 - p. 267 - 275.
DOI http://dx.doi.org/10.17660/ActaHortic.2016.1134.36
Department(s) Horticulture and Product Physiology Group
Laboratory of Plant Breeding
EPS
PE&RC
PBR Groei & Ontwikkeling
Publication type Refereed Article in a scientific journal
Publication year 2016
Keyword(s) Blue light - Far-red light - Flowering - LED - Photoperiod - Tuberization
Abstract Solanum tuberosum (potato) can reproduce through tubers and through seeds. Recent developments have enabled hybrid breeding and propagation from seeds in this crop. This makes potato flowering a new focus of research interest. Tuberization and presumably flowering, followed by seed set, are strongly regulated by environmental cues. A well-studied environmental regulator of tuber formation is day length. Photoreceptors are involved in this photoperiodic control of tuberization, suggesting light spectrum may be an important factor for tuberization. However, it is not known how photoreceptors control potato flowering. Here, we aim to elucidate the influence of light spectrum and photoperiod on tuber and flower formation, by growing three potato genotypes in climate chambers with light-emitting diode (LED) lighting and additional far-red and blue LEDs under long and short days. Far-red light accelerated tuber formation up to eleven days and blue light slightly delayed it up to four days. An effect of light spectrum on flowering was not found. Long photoperiods delayed tuber formation compared to short-day conditions in two of the three tested genotypes. Aside from one genotype which only flowered in long-days, no effect of photoperiod on flowering was found.
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