Original scientific paper

EVALUATION OF HETEROSIS FOR IMPORTANT QUANTITATIVE TRAITS IN CROSSES OF WINTER WHEAT (Triticum aestivum L.)

Marijana Barić ; Faculty of Agriculture University of Zagreb
Ivanka Habuš Jerčić ; Faculty of Agriculture University of Zagreb
Snježana Kereša ; Faculty of Agriculture University of Zagreb
Hrvoje Šarčević ; Faculty of Agriculture University of Zagreb

Abstract

Ten winter wheat genotypes from different breeding programs were used as parents for cross combinations. Thirteen F1 generations from cross combinations were analysed. Heterosis (Hs) and heterobeltiosis (Hbs) were evaluated for five quantitative traits (1000 grain weight, grain weight and grain number per spike, spike length, number of spikelets per spike). Positive heterosis (Hs, Hbs) in F1 generation (average for all cross combinations) was found for grain weight per spike (13.45 ; 4.94 %) and 1000 grain weight (12.86 ; 5.50 %), and negative heterosis for grain number per spike (-2.42 ; -7.57 %). For cross combination Edita x Magdalen high positive heterosis (Hs) for grain weight per spike (48.60 %) and 1000 grain weight (42.44 %) was established. Positive heterosis for several traits was also evaluated in cross combinations Mihelca x Kuna and Magdalen x Edita. Populations from cross combinations in which high average values and positive heterosis for several traits were found are those from which selection of lines with desirable traits are expected.

Keywords

heterosis; heterobeltiosis; quantitative traits; wheat

Hrčak ID:

26059

URI

https://hrcak.srce.hr/26059

Publication date:

14.7.2008.

Article data in other languages: croatian

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