Nizar Harba(1) and Nizar Mualla(1) and Jaafar Ali(1)*
(1). Department of Field Crops, Faculty of Agriculture, Tishreen University, Latakia, Syria.
(*Corresponding author: Eng. Jaafar Ali, Email: jaafaral3li@gmail.com)
Received:24/03/2023 Accepted:7/06/2023
Abstract:
TThe study was conducted during the years 2020-2021 and 2021-2022 on three species of Trigonella spp. (T. foenum- graecum, T. spinos, T. spicata), which are widespread wildly in some locations on the Syrian coast. Twenty-nine morphological characters of foliar, flowering, fruiting, and seed assemblies were used to study the morphological characterization of these species, and Morphological taxonomic keys were established. The data were organized into tables and analyzed, then a dendrogram representing the relationship of dissimilarity was constructed using NTSYS program through the UPGMA method. The morphological cluster tree for all types showed two main groups with a dissimilarity contrast ratio of 70%. The first group contained the species T. foenum- graecum from different locations (Al-Karama, Dweir babdah and Baamrael) with dissimilarity coefficient of 40%, while the second group was divided into two sub-groups with coefficient of 62%. Where the first sub-group contained the species T. spicata from (Al-Karamah and Dweir babdah), and the second sub-group included the species T. spinosa from (Al-Karama, Dweir babdah and Baamrael). This difference in variance ratios may be attributed to the influence of environmental factors on the studied characters.
Keywords: Trigonella spp., morphological characterization, cluster analysis.
Full paper in Arabic: pdf