Kabakgillerde külleme hastalığı etmeni Podosphaera xanthii izolatlarının azoxystrobin’e karşı duyarlılıkları

Year 2018, Volume: 58 Issue: 2, 79 - 84, 29.06.2018

Nedim Altın , Erhan Göre , İsmet Yıldırım

https://doi.org/10.16955/bitkorb.379083

Cited By: 1

Abstract

Bu çalışma, Kabakgillerde külleme hastalığı etmeni Podosphaera xanthii’nin azoxystrobin’e karşı
duyarlılık azalışının olup olmadığının belirlenmesi amacıyla yürütülmüştür. Bu
amaçla kabak tarlalarından 37 adet örnek alınmıştır. Örnekler morfolojik olarak
değerlendirilerek tüm izolatların Podosphaera
xanthii olduğu belirlenmiştir. İzolatların duyarlılıklarını belirlemek için
azoxystrobin’in 5 farklı dozu yaprak disk metoduna göre denenmiştir. Yaprak
disk sonuçlarına göre azoxystrobin aktif maddesinin pratikteki öneri dozuna
karşı 11 izolatın dayanıklılık kazandığı, 20 izolatın tolerant olduğu ve 6
izolatın ise duyarlı olduğu belirlenmiştir. Bu çalışma neticesinde,
Kabakgillerde külleme hastalığına neden olan Podosphaera xanthii’de azoxystrobin’e karşı duyarlılık azalışının
oluşmaya başladığı belirlenmiştir.

Keywords

azoxystrobin, duyarlılık, Podosphaera xanthii, kabak

Sensitivity of the isolates of Podosphaera xanthii, powdery mildew agent in cucurbits to azoxystrobin

Abstract

This study was carried out to determine if there is a
decrease in sensitivity of powdery mildew pathogen Podosphaera xanthii in cucurbitaceace against azoxystrobin active
ingredient. With this purpose, 37 samples were collected from zucchini fields.
Based on the morphological characters, all powdery mildew isolates were
identified as Podosphaera xanthii. In
order to determine the sensitivity of the isolates, five different doses of
azoxystrobin active ingredient were tested using leaf disc method. According to
leaf disc results, 11 isolates were resistant to the recommended level of the
active substance azoxystrobin while six isolates were susceptible. As a result
of this study, it was determined that Podosphaera
xanthii, which causes powdery mildew in cucurbitaceace, has observed a
decrease in its sensitivity to azoxystrobin active substance.

Keywords

azoxystrobin, sensitivity, Podosphaera xanthii, zucchini

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