Combining ability of cms lines, strains and cultivars of triticale for susceptibility to seedling blight caused by Fusarium culmorum

Tomasz Warzecha

kfhrin@urk.edu.pl
Katedra Hodowli Roślin i Nasiennictwa, Akademia Rolnicza w Krakowie (Poland)

Halina Góral


Katedra Hodowli Roślin i Nasiennictwa, Akademia Rolnicza w Krakowie (Poland)

Abstract

The following triticale genotypes were examined for susceptibility to fusarium seedling blight: 4 male sterile lines, 5 male fertile genotypes and 20 F1 hybrids received from crosses between parental genotypes in factorial design. Grains of triticale were inoculated with isolate IPO 348-01 originated from Institute of Plant Protection, Wageningen. Single isolates of Fusarium culmorum were cultivated on the PDA medium (Potato Dextrose Agar-Sigma) on Petri dishes. The inoculated grains were incubated for 7 days at 22°C. The hybrids showed average lower leaf infection score and similar root infection score in relation to the parents. Significant correlation coefficient between leaf infection score of hybrids and GCA of parents was proved, it gives opportunity to select parental components towards higher resistance on the GCA base. Seedling infection was more dependant on SCA of parental couples then on GCA of the parents. Correlation coefficients between leaf and root infection of hybrids and SCA effects of parental couples were positive and significant (respectively r=0,642** and 0,881**). The received results indicated out that resistance level of hybrids to F. culmorum was also dependant on nonadditive gene effects and prediction based only on GCA of parents could be not reliable enough.


Keywords:

Fusarium culmorum, GCA, SCA, triticale

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Published
2006-09-29

Cited by

Warzecha, T. and Góral, H. (2006) “Combining ability of cms lines, strains and cultivars of triticale for susceptibility to seedling blight caused by Fusarium culmorum”, Bulletin of Plant Breeding and Acclimatization Institute, (240/241), pp. 127–132. doi: 10.37317/biul-2006-0042.

Authors

Tomasz Warzecha 
kfhrin@urk.edu.pl
Katedra Hodowli Roślin i Nasiennictwa, Akademia Rolnicza w Krakowie Poland

Authors

Halina Góral 

Katedra Hodowli Roślin i Nasiennictwa, Akademia Rolnicza w Krakowie Poland

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