2024, 89 (4)  p. 331-341

Mohammad Hossein Azimi

Abstract

This research aimed to produce new, high-quality hybrids by hybridizing amaryllis cultivars and introducing new cultivars. It was conducted at the Ornamental Plants Research Center, Mahallat, Iran in 2017-2018 to assess seed traits of successful crosses between different cultivars of Hippeastrum. Thirty-nine crosses were laid out under a randomized complete block design with three replications. The results showed that the reciprocal crosses of ‘Moscow’ × ‘Barbados’, ‘Baby Star’ × ‘Dancing Queen’, and ‘Moscow’ × ‘OPRC-201’ were successful. The analysis of variance revealed that the difference was significant (P ≤ 0.01) for all the studied traits, reflecting a diversity of the crosses in all traits. The main traits showed that ‘OPRC16’ had the highest germination percentage (93.05%) and ‘OPRC9’ had the lowest (16.19%). The highest and lowest seed numbers per capsule were related to ‘OPRC28’ (126.67 seeds) and ‘OPRC35’ (18.00 seeds), respectively. ‘OPRC11’ had the highest thousand-seed weight of 13.22 g and ‘OPRC33’ had the lowest one of 6.60 g. The crosses were categorized into four groups. It was found that the diversity in the traits was mostly related to the genetic factors, and the environment was less influential on these traits.

Keywords

diversity, hybridization, capsule, germination percentage

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