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 505105
Title Strongly increased stomatal conductance in tomato does not speed up photosynthetic induction in ambient nor in elevated CO2 concentration
Author(s) Kaiser, Elias
Event 8th International Symposium on Light in Horticulture, East Lancing, Michigan, 2016-5-30/2016-5-30
Department(s) WUR GTB Teelt & Gewasfysiologie
Publication type Unpublished lecture
Publication year 2016
Abstract Irradiance-dependent opening and closure of stomata is comparably slow. Therefore, stomatal conductance (gs) often limits photosynthesis in fluctuating irradiance, particularly after large stepwise increases in irradiance in leaves adapted to low irradiance or darkness. This limitation to photosynthesis may reduce crop productivity in natural environments and greenhouses, where irradiance incident on a leaf can fluctuate rapidly. To test whether this limitation applies to typical greenhouse crops such as tomato (Solanum lycopersicum L.), photosynthetic gas exchange of flacca, a mutant with very high gs (2-4 times wildtype level) was compared with its wildtype (WT), cv. Rheinlands Ruhm. The steady-state response to leaf internal CO2 concentration (Ci) was similar between genotypes, indicating similar properties of the leaf photosynthetic apparatus. Surprisingly, when exposing dark-adapted leaves in ambient CO2 concentration (400 ppm) to a stepwise increase
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