Abstract
Transfer of the mlo resistance gene into to the genome of winter barley
Highlights
The spring barley cultivar Danuta was used as a donor of mlo gene
Mlo gene was introduced into genome of the two multi-row winter cultivars Carola
Powdery mildew resistance was evaluated under field conditions
Summary
The aim of the study was to transfer mlo gene, which determines very effective resistance to powdery mildew Hordei) from spring barley to winter forms and to determine agronomic value of selected breeding lines under field conditions. Powdery mildew resistance was evaluated under field conditions and natural infection in several homogenous lines with Mlo resistance type, which were selected from generated F1, F1BC1, F2BC1 populations. Hordei determined by mlo gene was selected as a result of evaluations under controlled conditions, natural infection and using molecular markers. This line showed good economic value comparable to the control varieties and it may be concluded that the line BKH 5735 has Mlo resistance and provides high-yielding. Słowa kluczowe: Blumeria graminis f. sp. hordei; gen mlo; jęczmień ozimy; odporność
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