VARIABILITY AND HERITABILITY CHARACTERISTICS OF PLANT HEIGHT IN F₂ HYBRID GENERATIONS OF DURUM WHEAT (TRITICUM DURUM)

This article presents the results of the analysis of variability and heritability of plant height in F2 hybrid generations of durum wheat (Triticum durum). The research was conducted from 2019 to 2021 in the irrigated fields of the Lalmikor Agricultural Research Institute. According to the analysis results, the plant height of F2 hybrid generations of durum wheat ranged from 83.8 cm to 97.8 cm. The coefficient of variation (V-variation) ranged from 1.5% to 5.8%, and the heritability (h2%) of the trait ranged from 22.54% to 80.49%. High heritability (60-100%) for the plant height trait was observed in 8 of the studied hybrid combinations. Specifically, F2 hybrid generations with plant height heritability (h²) above 60.0, which were selected, include Mingchinor x IcaKader, Mingchinor x Istiqbolli, Istiqbolli x Mingchinor, Omrabi 5 x Krupinka, Kristella x Makuz-3, Kristella x Mingchinor, IcaKader x Mingchinor, Mingchinor x Krupinka, and Makuz-3 x Omrabi 5.