Abstract
This research paper is devoted to the application of cluster analysis for evaluating samples of soft spring wheat by elements of crop structure. The purpose of the study is to analyse the intraspecific and interspecific variability of morphological features of samples of spring wheat of various ecological and geographical origin according to 8 morphological features. Observations were carried out in 2018-2020 in the training and experimental production centre “Doslidne pole” of the Kharkiv National Agrarian University named after V.V. Dokuchaev. The cluster analysis of the collection of spring wheat samples, which included 76 samples of various ecological and geographical origin, allowed the study to assess the following features: the presence of awns, the colour of awns, the colour of ear scales, the pubescence of leaves, the pubescence of the subcrown internode, the pubescence of the ear internode, the colour of caryopsis, the colour of straw. The results of analysis of the phylogeny of various types of spring wheat by cluster analysis using morphological markers to determine homogeneous groups are presented, and the affected tree of systematic formation of clustering groups is established. Based on the cluster analysis, two separate groups of soft spring wheat samples were identified according to the complex of plant productivity elements. Samples are grouped into each cluster depending on the quantitative characteristics of the crop structure and their interaction with each other. In general, all samples over the years of study showed good results, namely based on “colour of awns”, of particular note are the samples of the Tr. persicumspecies. According to the results obtained, all samples have good indicators, and cluster analysis of soft spring wheat samples allowed identifying groups of plants that exceed the parent forms in the optimal set of economically valuable traits, which would allow for a more purposeful selection of valuable forms based on certain traits
Highlights
Morphological aspects of spring wheat productivity are very important in scientific research, in particular, how exactly morphological features affect the food qualities of the investigated crop
Based on the conducted studies using cluster analysis in the technology of the breeding process during 2018-2020, samples and constant breeding lines were identified, balanced on economically useful traits, which can be used as promising breeding material, and parent components during hybridisation
Based on the results of the study, it was confirmed that the advantage of cluster analysis in relation to statistical analysis is that cluster analysis allows identifying varieties and breeding lines by the balance on economically useful traits, and in the statistical analysis, it is possible to select and distinguish only certain quantitative features by their level of formedness and variability and yield
Summary
Morphological aspects of spring wheat productivity are very important in scientific research, in particular, how exactly morphological features affect the food qualities of the investigated crop. It is the value of morphological features that allows establishing varieties of spring wheat. Ecological polymorphism of spring wheat samples can serve as a source of variations for use in breeding, causing the formation of updated forms of economically valuable wheat plants with improved properties. Imperfect genetic information about hereditary material can reduce the effectiveness of breeding activities, since it is not possible to create seed material that is more resistant to adverse factors. The conservation of genetic resources and the assessment of their diversity is very important in further studies [1; 2]
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
