Evaluation of the breeding value of the spring oilseed rape (Brassica napus L.) inbred lines based on a multi-trait analysis

Jan Bocianowski; Kamila Nowosad; Henryk Bujak; Tadeusz Luczkiewicz; Dariusz Piesik

Jan Bocianowski Department of Mathematical and Statistical Methods, Poznañ University of Life Sciences, Wojska Polskiego 28, 60-637 Poznañ, Poland
Kamila Nowosad Department of Genetics, Plant Breeding and Seed Production, Wroclaw University of Environmental and Life Sciences, Grunwaldzki 24A, 53-363 Wroclaw, Poland
Henryk Bujak Department of Genetics, Plant Breeding and Seed Production, Wroclaw University of Environmental and Life Sciences, Grunwaldzki 24A, 53-363 Wroclaw, Poland
Tadeusz Luczkiewicz Department of Genetics and Plant Breeding, Poznañ University of Life Sciences, Dojazd 11, 60-632 Poznañ, Poland
Dariusz Piesik Department of Entomology and Molecular Phytopathology, UTP University of Science and Technology, 20 Kordeckiego, 85-225 Bydgoszcz, Poland

Keywords: General combining ability, hybrids, multidimensional indices, seed yield

Abstract

Oilseed rape (Brassica napus L.) is the most important oilseed crop after soybean worldwide, especially in the countries with moderate climate. The aim of the present study was to assess the genetic crossing potential of eight inbred lines of the spring oilseed rape (B. napus L.) based on the indices of associative combinatory value. The main trait for calculation of multidimensional indices of genetic potential was the seed yield per plant. Obtained results showed that the selection index can enable the choice of the most valuable lines to be practically used in heterotic breeding of the oilseed rape.