Variability source structure in tomato (L. esculentum Mill.) germplasm collection

The purpose of the study was to investigate variability source structure and contribution of particular traits in total variability of tomato (Lycopersicon esculentum Mill) germplasm collection. Plant material, belonging to the collection of the Institute of Field and Vegetable Crops in Novi Sad included: 5 landraces, 10 old varieties, 10 breeding lines and 4 commercial varieties. The trial was set at the experimental fields of the Rimski Sančevi site, during 2010-2012. Observations were recorded on the first truss and following traits were analyzed: fruit length (FL) and width (FW), locules number (LN), pericarp thickness (P7), dry matter content (DM), average fruit weight (FWe), fruit yield per plot (FY/plot), number of fruits per plot (NF/plot), average fruit number per plant (FN/plant), number of days from germination to the beginning of maturity (ND). Principal Component Analysis was performed in statistical software STATISTICA 12.