ANALYSIS OF VARIATION IN SOME MORPHOLOGIC AND YIELD RELATED TRAITS IN SOME SUGAR BEET GENOTYPES

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Naser SABAGHNIA
Keiwan FOTOUHI
Masoumeh RAHIMPOUR
Hamid HATAMI MALEKI

Abstract

This research aimed to evaluate sugar beet (Beta vulgaris L.) genotypes in the cold semi-arid environment of northwestern Iran. Twenty sugar beet genotypes underwent assessment for yield performance and various quality traits. Parameters such as sugar content (SC), potassium amount (K), alpha-amino nitrogen (AN), alkalinity coefficient (ALC), extraction coefficient of sugar (ECS), sodium content (NA), molasses sugar (MS), white sugar content (WSC), growth uniformity (GU), canopy cover (CC), plant height (cm) (PH), petiole length (PL), petiole width (PW), lamina length (LL), stem diameter (SD), tuber size (TS), plant number at harvesting (PNH), and root yield (RY) were measured. The coefficient of variation ranged from 1.56% in ECS to 43.59% in RY. Factor analysis revealed that the first seven eigenvalues extracted explained 89% of the variation. Plotting the first three factors showed positive associations, such as CC with PH; ECS and SC with WSC; and PW, PL, LL, GU, and TS with AN. The three-dimensional biplot indicated that G4 exhibited high PH, CC, PW, PL, LL, and AN, while G3 showed high K, RY, MS, PNH, SD, and NA traits. Additionally, G11 demonstrated high ESC, SC, and WSC. The traits clustered into five groups, with the genotypes categorized into two clusters. Cluster- II (G3, G8, G18, and G19) emerged as the best group due to high root yield. To achieve higher yield, factors like growth uniformity, stem diameter, and tuber size must be considered, along with plant number at harvesting in sugar beet.

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How to Cite
SABAGHNIA, N., FOTOUHI, K., RAHIMPOUR, M., & HATAMI MALEKI, H. (2024). ANALYSIS OF VARIATION IN SOME MORPHOLOGIC AND YIELD RELATED TRAITS IN SOME SUGAR BEET GENOTYPES. AgroLife Scientific Journal, 13(2), 234–242. https://doi.org/10.17930/AGL2024221
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