Ecologo-genetical model for control of the quantitative traits in white lupin

Abstract

An attempt a transition from a selection based on the concepts of "gene-character" to selection of genetic-physiological systems was done suggesting an ecologo-genetical model for control of the quantitative traits in white lupin. Plant material of the aboveground and root mass of 7 varieties of white lupin different originated was analyzed: PI457923 (Greece), PI368911 (Czech Republic), PI533704 (Spain), PI457938 (Morocco), KALI (Poland), Zuter (France) and Lucky801 (France). The study was performed on the experimental field of the Institute of Forage Crops, Pleven, Bulgaria during three subsequent years (2014-2016). The ecologo-genetical models for organization of the quantitative traits and method of the orthogonal regressions were applied as methods for assessment. The highest average seed yield was found at Lucky801 (208.67 kg/da) and PI533704 (151.92 kg/da). PI368911, PI457938 and KALI were characterized by high variability and seed yields (90.00 kg/da, 80.08 kg/da, 83.25 kg/da) below the average ones for the tested group of varieties. PI533704 and PI457938 varieties showed the highest fresh aboveground mass yields (485.12 and 597.98 kg/da). Plants of PI457938 formed high fresh aboveground and root mass weight and exhibit a good combination of adaptability and attraction genes. Lucky801 and PI533704 varieties showed strong genes of the physiological systems attractiveness and adaptability by seed weight and root mass weight per plant, but PI457923 and Zuter were well adapted. These varieties were of greatest interest and may be included in future hybridization schemes to obtain hybrids combining in one genotype high seed and root mass weight.