Determination of seed-borne fungal pathogens on harvested canola (Brassica napus L.) seeds from Thrace Region
Abstract
The aim of this study was to determine fungal
pathogens on seed samples of canola collected in 2013 from the fields located
on Edirne, Tekirdağ, Kırklareli provinces of Thrace region, and their pathogenicity. Additionally, the cultural and
morphological characteristics of fungal species, which were highly pathogenic,
were determined. As a result of the study, it was found that seed samples
collected from Thrace region of Turkey were contaminated with A. alternata in the alternata species groups of Alternaria
genus at the highest rate, A. ethzedia
and A. infectoria in the infectoria
species groups of the same genus followed it. Other species detected in canola
seed samples were Arthrinium arundinis,
Cladosporium sp., Curvularia sp., Fusarium sp., Phomopsis
sp. and the most common species of these was A. arundinis. In the result of pathogenicity tests, A. alternata isolates caused disease
severity between 52.2-76% on seedling; the isolates of A. ethzedia had virulence capacity ranged from 31.5 to 82%. This
range was between 24.7-70.5% for A.
infectoria and between 56.20-69.20% for A.
arundinis.
References
- Brazauskiene I. and Petraitiene E. 2006. The occurrence of Alternaria blight (Alternaria spp.) and Phoma stem canker (Phoma lingam) on oilseed rape in central Lithuania and pathogenic fungi on harvested seed. Journal of Plant Protection Research, 46 (3), 295-311.
Trakya Bölgesi'nde hasat edilmiş kanola (Brassica napus L.) tohumlarında tohum kökenli fungal etmenlerin tespiti
Abstract
Bu çalışmada
2013 yılında Trakya Bölgesi'nde bulunan Edirne, Kırklareli ve Tekirdağ illerinden
toplanan kanola tohumu örneklerinde fungal etmenlerin tespiti ve
patojenisitelerinin belirlenmesi amaçlanmıştır. Çalışmada ayrıca yüksek
derecede patojen bulunan fungus türlerinin kültürel ve morfolojik özellikleri
tanımlanmıştır. Çalışma sonucunda Trakya Bölgesi'ndeki illere ait tohum örneklerinde
yapılan incelemelerde tohumların en yüksek oranda Alternaria cinsi içindeki alternata türleri grubundan A. alternata ile bulaşık olduğu, bunu
infectoria türleri grubundan A. ethzedia
ve A. infectoria'nın izlediği
belirlenmiştir. Tohum örneklerinde tespit edilen diğer funguslar ise Arthrinium arundinis, Cladosporium sp., Curvularia sp., Fusarium
sp., ve Phomopsis sp. olarak
tanımlanmış olup, bunlar arasında en yaygın türün A. arundinis olduğu görülmüştür. Fungal etmenlerle yapılan
patojenisite testleri sonucunda, A.
alternata izolatları %52.2- %76.0, A.
ethzedia izolatları %31.5-%82, A.
infectoria izolatları %24.7-%70.5 ve A.
arundinis izolatları %56.20-%69.20 arasında değişen oranlarda hastalık
şiddeti oluşturmuşlardır.
References
- Brazauskiene I. and Petraitiene E. 2006. The occurrence of Alternaria blight (Alternaria spp.) and Phoma stem canker (Phoma lingam) on oilseed rape in central Lithuania and pathogenic fungi on harvested seed. Journal of Plant Protection Research, 46 (3), 295-311.
Details
| Journal Section | Makaleler |
|---|---|
| Authors | |
| Publication Date | September 30, 2017 |
| Submission Date | January 30, 2017 |
| Acceptance Date | March 20, 2017 |
| Published in Issue | Year 2017 Volume: 57 Issue: 3 |