Valentin Kosev1, Natalia Georgieva2*
1Department of Breeding and Seed Production of Forage Crops, Institute of Forage Crops, Pleven, BULGARIA
2Department of Forage Production and Animal Breeding, Institute of Forage Crops, Pleven, BULGARIA
Corresponding author: email@example.com, Phone: +359887733701
Abstract. The research was carried out at the Institute of Forage Crops (Pleven, Bulgaria) during the period 2016–2018. As methods of evaluation of 17 accessions of broad bean, the ecologo–genetic model for organization of the quantitative trait and the method of orthogonal regressions were applied. The estimation of source material of broad bean showed high productivity, expressed through seed weight per plant, in accessions BGE 029055 (40.57g), BGP (40.46g) and FbH 14 (34.85g) classified with ranks 4, 9 and 8, respectively. The traits of number of pods and seeds per plant were well combined in BGE 029055 (15; 3), BGP (12; 3) and Fb 2486 (12; 3), which also had the highest ranks (3–5).The estimation of source material through genetic–physiological systems allowed with a high probability to be selected appropriate parental forms. BGE 029055 had strong genes of the physiological systems (attraction and adaptability) in terms of productivity. BGE 046721, Fb 2486 and BGE 029055 were of interest and may be included in the combinative breeding for the development of adaptive and high–yielding cultivars.
Keyword: broad bean, genotype, phenotype, productivity.