To genetically improve a complex trait we can dissect it into simpler component traits that follow a physiological model. We investigated this approach in tomato for total plant biomass, which was decomposed into fraction of intercepted light (F int ), calculated from leaf area index (LAI), and light use efficiency (LUE). We identified quantitative trait loci (QTLs) in hybrids created out of a multi-parent population of recomb...

Dormancy-Associated MADS-BOX (DAM)3 and DAM4 have been described as potential regulators of winter dormancy in cultivated strawberry ( Fragaria x ananassa Duch.). These genes are upregulated under short-day conditions and downregulated under chilling conditions. The aim of the current work is to test the hypothesis that the expression of DAM3 and DAM4 correlates negatively with vegetative growth during dormancy induction and b...

Differences in growth have been reported for tomato under LED compared to HPS light, however, it is not clear if breeding specific for LED supplemental light is worthwhile. Therefore, we derived four recombinant inbred line (RIL) tomato populations from parents with contrasting growth responses to different light spectra. These RIL populations were grown for four weeks under supplemental HPS or 95% red and 5% blue LED light in...

LED lighting has emerged as alternative to the current HPS standard in greenhouse production. However little is known about the impact on fruit quality under the different light spectra. We grew a biparental tomato RIL population between September 2019 and January 2020 under two commercial greenhouse supplemental lighting conditions, i.e. HPS, and 95% red/5% blue- LED, of about 220 µmol m −2 s −1 at maximum canopy height for 1...