Determination of the seedling reactions of six-rowed barley landraces to spot blotch disease incited by Cochliobolus sativus

Arzu Çelik Oğuz; Güray Akdoğan; Aziz Karakaya

doi:10.29050/harranziraat.516222

Research Article

Altı sıralı arpa köy çeşitlerinin Cochliobolus sativus tarafından oluşturulan yaprak lekesi hastalığına karşı fide dönemi tepkilerinin belirlenmesi

Year 2019, Volume: 23 Issue: 4, 444 - 450, 23.12.2019

Arzu Çelik Oğuz , Güray Akdoğan , Aziz Karakaya

https://doi.org/10.29050/harranziraat.516222

Abstract

Spot blotch
disease incited by Cochliobolus sativus
is an important disease of barley (Hordeum
vulgare L.) crops worldwide. In this study, seedling reactions of 28
six-rowed barley landraces obtained from Osman Tosun Gene Bank, Turkey, and two
Turkish barley cultivars (Avcı 2002 and Bülbül 89) to 2 Cochliobolus sativus
isolates obtained from Kastamonu and Hatay provinces of Turkey were determined.
Virulence difference between the isolates was observed. Isolate obtained from
Kastamonu province was more virulent. Two, 18, and 8 landraces showed low,
intermediate, and high infection responses to Kastamonu isolate, respectively.
Cultivar Avcı 2002 showed intermediate infection response and cultivar Bülbül
89 showed high infection response to Kastamonu isolate. Nine, 18, and 1
landraces showed low, intermediate and high infection responses to Hatay
isolate, respectively. Cultivar Avcı 2002 showed low infection response and
cultivar Bülbül 89 showed intermediate infection response to Hatay isolate.
Landraces 12 and 24 showed low infection responses to both isolates. Landraces
6, 8, 13, 16, 17, and 27 showed low and intermediate infection responses to
Hatay and Kastamonu isolates, respectively. Landraces 3, 4, 5, 9, 10, 11, 18,
21, 23, 26, and 28 showed intermediate infection responses to both isolates.
Barley landraces showing low and/or intermediate infection responses to Cochliobolus sativus could be used in
spot blotch resistance breeding studies or can be planted in areas where spot
blotch is common.

Keywords

Yaprak lekesi, Cochliobolus sativus, Bipolaris sorokiniana, Arpa köy çeşitleri, Hastalıklara dayanıklılık

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