Phenotyping of a diverse tomato collection for postharvest shelf-life

In all fruit and vegetable crops, reduction in quality during postharvest storage leads to substantial losses of primary production with enormous economic consequences. Also tomato, shelf-life is an important trait. this study a collection tomato accessions, consisting 92 S. lycopersicum landraces old cultivars several pimpinellifolium was phenotyped for parameters biochemical characterization performed the from selected accessions. This based on available genotypic data represents genetic diversity present EU–SOL core (Roohanitaziani, 2020). The grown greenhouse, were harvested at breaker-turning stage stored controlled climate chamber 42 d 18 ?C. attributes firmness loss, weight as well color pigments, measured once week evaluated over time. All three shelf-life-related varied markedly among resulting different shelf-life. most promising accessions first screen re-grown analyzed validate initial results six contrasting metabolite analysis. Fruit breaker 35 Samples taken weekly intervals volatile compounds, metabolites cell wall polysaccharide monomers. During long short showed considerable differences their content sugars, such galactose polyamines, putrescine pericarp. galactose, arabinose galacturonic acid, underwent changes storage. contained higher amount than other which indicative highly branched pectin. knowledge provides better understanding difference pectin structure between ripening process.