Correlation relations and genetic distance by morphological characteristics of common wheat winter cultivars (Triticum aestivum L.) in South-Central Bulgaria

Bogdan Bonchev, Evgeniy Dimitrov, Zlatina Uhr

Abstract: The study was conducted in Institute of Plant Genetic Resources in town of Sadovo, Bulgaria. The purpose of study is to establish traits of six common winter wheat cultivars, which can be used to identify the cultivar with morphological markers, and then the genetic difference between them will be assessed. The study period covers the vegetation season 2016/2017 to 2017/2018. According to the study by traits the length of the spike and the height of the plants studied common winter wheat cultivars falls into different groups; this makes it possible for their distinguish-ability. With the biggest effect of the genotype was characterized both traits number of kernels per spike and the height of the plants. The traits: height of plants, length of the spike and weight of thousand grains was with lowest variation by cultivars and by years. Those traits were with a significant to medium influence of the genotype, and were suitable for morphological markers. Morphological markers have to be used together, because wasn’t observed proved differences of trait thousand grains weight between some of the studied cultivars. According to the dendrogram cultivar Ginra is the most distant from cultivar Nikibo.

Keywords: cultivars; genotype; influence; morphological markers; wheat

Date published: 2022-10-27