Morphological and molecular characterization of downy mildew on sweet basil (Ocimum basilicum) caused by Peronospora belbahrii in Turkiye

Günaçti, Hale

doi:10.1007/s11033-022-08218-y

Cited by 2 publications

(1 citation statement)

References 32 publications

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“…BDM caused by the oomycete P. belbahrii has recently become one of the most devasting diseases of basil worldwide (Gunacti 2023), causing severe damages and crop losses, with a significant economic impact (Abdullah et al 2022). high temperatures and repeated drought phenomena caused serious agronomic management problems to the basil crop, with high water needs.…”

Section: Discussionmentioning

confidence: 99%

Cropping system support in downy mildew control in basil in organic farming: a two-year open field experiment

La Placa,

Cornali,

Bertinaria

et al. 2024

J Plant Pathol

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Basil Downy Mildew (BDM), caused by the oomycete Peronospora belbahrii, is a major issue for sweet basil (Ocimum basilicum L.) production worldwide. Currently, the disease is mainly controlled by chemical fungicides, but the development of populations of the pathogen which are resistant to the most widely used compounds is leading to the research of alternative crop protection strategies. Therefore, in this paper, some cropping variables were tested in a field trial conducted in two consecutive years (2021 and 2022) in Northern Italy in organic farming conditions, with the overall objective to optimize basil productivity and quality and limit BDM occurrence. These include two basil varieties, two sowing densities (dense, 30 kg/ha, and sparse, 15 kg/ha), and two irrigation systems (drip and sprinkler). A higher incidence and severity of BDM in 2022 compared to 2021 was observed, mainly due to the different climatic conditions that occurred in the two years. Year 2022 was characterized by high temperatures and repeated drought phenomena that led to basil stress and BDM severe outbreak. Moreover, variety 1 (considered resistant to P. belbahrii) was confirmed to be completely resistant in 2021 but it was found to be susceptible the following year, with disease incidence and severity comparable to variety 2 (medium susceptible). No differences were detected in terms of BDM occurrence and crop yield between the two sowing densities (mean of 58.4% and 26.6% of BDM incidence and severity, respectively; mean yield 1.4 kg/m2), while it emerged that drip irrigation can be useful in reducing BDM (−23.1% BDM severity). Therefore, this study suggests that the crop protection strategies tested, even if not definitive solutions, can significantly contribute to manage BDM more effectively, while preserving basil productivity and quality.

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Section: Discussionmentioning

confidence: 99%

Cropping system support in downy mildew control in basil in organic farming: a two-year open field experiment

La Placa,

Cornali,

Bertinaria

et al. 2024

J Plant Pathol

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Investigation, Identification and Pathogenicity Assessment of Leaf and Soil-Borne Fungal Diseases Causing Yield Reduction in Vegetables in Antalya

GÜNAÇTI

2023

Journal of Agricultural Faculty of Gaziosmanpasa University

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Vegetables significantly contribute to Antalya, Türkiye's economy. This study aimed to investigate and identify fungal pathogens causing leaf and soil-borne diseases in leafy vegetable crops. Surveys were conducted in 2021, focusing on morphological and microscopic diagnosis, as well as the prevalence rate of these diseases in five regions (Aksu, Serik, Muratpaşa, Kepez, and Korkuteli). Isolates were obtained from both the leaves and roots of symptomatic plants, and pathogenicity tests were conducted. Survey results showed that lectuca downy mildew was the most important disease, with a 40% plant infection rate and 16.9% disease severity in most parts of the region. In areas where parsley was cultivated, Fusarium sp. was identified as the predominant soil-borne pathogen at 23.82%, and Sclerotinia sclerotiorum was prevalent in lettuce at 14.28%. The lowest incidence of Albugo candida was observed in cress. In conclusion, this study provides crucial insights into the prevalence of fungal diseases and the specific pathogens responsible for damage to lettuce, parsley, dill, cress, mint, and basil cultivation in Antalya province. The incidence and prevalence of these fungal diseases were assessed through surveys in Antalya. In conclusion, this study provides important information on fungal disease agents and their prevalence in lettuce, parsley, dill, cress, mint and basil cultivated areas in Antalya province.

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Morphological and molecular characterization of downy mildew on sweet basil (Ocimum basilicum) caused by Peronospora belbahrii in Turkiye

Cited by 2 publications

References 32 publications

Cropping system support in downy mildew control in basil in organic farming: a two-year open field experiment

Cropping system support in downy mildew control in basil in organic farming: a two-year open field experiment

Investigation, Identification and Pathogenicity Assessment of Leaf and Soil-Borne Fungal Diseases Causing Yield Reduction in Vegetables in Antalya

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