Katya Uzundzalieva Institute of Plant Genetic Resources “Konstantin Malkov”, Sadovo

Gergana Desheva Institute of Plant Genetic Resources “Konstantin Malkov”, Sadov

Evgenia Valchinova Institute of Plant Genetic Resources “Konstantin Malkov”, Sadov

Bozhidar Kyosev Institute of Plant Genetic Resources “Konstantin Malkov”, Sadov

 

Abstract

A set of 15 landraces was estimated by seven agronomical characters. The analysis of variance showed that the most relative variable character during the period of study was the grain yield, followed by the spike length and the thousand kernel weight. The accessions with the shortest stem were B3000126 (90 cm) and B3000128 (95 cm), while B4E0040 and B3000130 had dense and long spikes. The highest thousand kernel weight was observed in B3E0024 (37.66 g), followed by B3000126 (36.60 g). B3000024 and B3000082 possessed high production potential. PC-analysis was applied to arrange accessions by their similarity. The first two factors explained 68.533 % of total variation. The first factor had an important role to justify alteration of length of vegetative growth phase, number of spikelets per spike, plant height and the thousand kernel weight. The second factor justified 27.603 % of total variance. Cluster analysis based on the two factors grouped the landraces into six groups.