Journal of Integrative Agriculture ›› 2016, Vol. 15 ›› Issue (9): 1983-1990.DOI: 10.1016/S2095-3119(15)61243-6

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  • 收稿日期:2015-09-06 出版日期:2016-09-02 发布日期:2016-09-02

Path analysis and estimation of additive and epistatic gene effects of barley SSD lines

Jan Bocianowski1, Katarzyna Górczak1, Kamila Nowosad2, Wojciech Rybiński3, Dariusz Piesik4   

  1. 1 Department of Mathematical and Statistical Methods, Poznań University of Life Sciences, Poznań 60-637, Poland
    2 Department of Genetics, Plant Breeding and Seed Production, Wroc?aw University of Environmental and Life Sciences, Wroc?aw 53-363, Poland
    3 Institute of Plant Genetics, Polish Academy of Sciences, Poznań 60-479, Poland
    4 Department of Entomology and Molecular Phytopathology, UTP University of Science and Technology, Bydgoszcz 85-225, Poland
  • Received:2015-09-06 Online:2016-09-02 Published:2016-09-02
  • Contact: Jan Bocianowski, Tel: +48-61-8487143, Fax: +48-61-8487140, E-mail: jboc@up.poznan.pl

Abstract:     In the paper presented, 99 single seed descent barley lines as well as their parental forms Roland and Apex were studied. The grain weight components and their interrelations were analyzed using simple coefficients of correlation. The direct and indirect effects of such components on grain weight per plant and 1 000-grain weight were estimated using path analysis. In the 2006 and 2007, the spike length and number of spikelets per spike were the determinants of grain weight. Genetic parameters as additive and epistasis effects were estimated for all studied traits. The results indicate the importance of both additive and epistasis gene effects of number of spikes per plant, grain weight per spike, grain number per plant and grain weight per plant in this study.

Key words: path analysis ,  additive effect ,  epistasis ,  single seed descent (SSD) ,  barley