Uluslararası Tarım Araştırmalarında Yenilikçi Yaklaşımlar Dergisi

Yazarlar: Natalia Georgieva , Valentin Kosev

Konular:-

DOI:10.29329/ijiaar.2020.238.12

Anahtar Kelimeler:Broad bean,Phenotypic correlation,Genotypic correlation and Regression

Özet: With an aim to establish phenotypic and genotypic correlations among main quantitative traits in broad bean accessions, a field experiment was conducted at the Institute of Forage Crops (Pleven, Bulgaria) during the period 2016-2018. Objects of the study were 17 accessions of broad bean (Vicia faba L.) originating in Spain, Portugal and Bulgaria. Plants were grown under organic farming conditions. The results of the conducted study showed that the phenotypic relationships between the quantitative traits of broad bean were slightly lower than the values of the genetic correlation coefficients. With significant medium to strong dependencies were distinguished the phenotypic and genotypic correlation coefficients between plant height and 1st pod height (r = 0.539, r = 0.655, r = 0.873, r = 0.530, r = 0.658, r = 0.878), and between 100 seeds mass and pod width (r = 0.644, r = 0.776, r = 0.751, r = 0.654, r = 0.781, r = 0.758). Phenotypic and genotypic manifestations of the studied quantitative traits were differently expressed depending on the environmental conditions. Under unfavorable conditions, some of the correlations changed their direction and value of the coefficient. The traits of 100 seeds mass (0.482) and pods number per plant (0.340) had a maximum positive direct effect on seed productivity. With the highest total effect was characterized the mass of 100 seeds (0.574), pod length (0.568) and plant height (0.411). The traits of pod length, seeds number per plant and 100 seeds mass were in positive regression dependence with seed productivity in broad bean.

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