Impact of some Resistance Inducers on the in vitro Growth and Sporulation of Fusarium oxysporum f. sp. lycopersici the Causal Agent of Tomato Wilt in Kazakhstan

Sagitov, A. O.; El-Habbaa, Gehad; El-Fiki, Ibrahim

doi:10.21608/ejp.2010.231804

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“…Indeed, the significant decrease in the incidence of the disease after treatment with K. senegalensis oil could be explained by the existence of compounds such as flavonoids and alkaloids causing inhibition of the development of Peronospora destructor, pathogen responsible for onion downy mildew. The results obtained are similar to those of Sagitov et al [24] who also obtained a 100% reduction in the incidence of fusarium wilt after soaking of seedlings followed by foliar spraying with successively garlic and pepper extracts at 4% and note an increase in the weight and yields of treated plants. In the same vein, it has been shown that the essential oil of X. aethiopica fruits strongly inhibits the mycelial growth of S. rolfsii, resulting in a considerable reduction in the incidence of the disease on treated tomato plants compared to untreated plants [25].…”

Section: Effects Of Treatments On the Incidence Of Onion Downy Mildew...supporting

confidence: 89%

Study of the Effects of Cailcedrat (Khaya senegalensis) on Late Blight, the Main Onion Disease (Allium cepa L.) in the Department of Diamare, Far North, Cameroon

Oumarou

Kosma²,

Baptiste³

et al. 2023

IJPR

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Objective: Onion (Allium cepa L.) is a vegetable crop with an important economic asset for Cameroonian farmers. The objective of this study is to evaluate the effects of different formulations of K. senegalensis on late blight, the main onion disease in the department of Diamaré, (Far North, Cameroon). Methodology and Results: For this purpose, an experimental split-splot device consisting of three blocks (repeats), comprising three varieties (Chagari, Goudami and Blanc de galmi) of onion and eight treatments (TtN, Ttp, THK1, THK2, TEFK1, TEFK2, TEEK1 and TEEK2) was used in two study sites (Gayak and Wouro-Mayo) and during two agricultural seasons (2020 and 2021). After data collection and analysis, the results obtained show that the mean value of the highest incidence was obtained with Ttn treatment (34.44) in Gayak in 2020, and the lowest value was obtained with THK2 (0.00) in Wouro-Mayo. In 2021, the highest mean value was recorded in Gayak with TtN (32.03) and the lowest incidence is observed with TEEK2 (0.37) in Wouro-Mayo. Moreover, the highest severity was obtained with TtN (17.58) in Wouro-Mayo in 2020, and the lowest with THK2 (0.00) at the same site. In 2021, the lowest severity was observed with THK2 (0.18) in Gayak and the highest with TtN (14.90) in Gayak. The highest yields were recorded with THK2 (160.27 t/ha) at Wouro-Mayo in 2020 and THK2 (169.46 t/ha) in 2021 at the same study site. On the other hand, the lowest yields were obtained in Gayak with TtN (79.6 t/ha) in 2020 and in 2021 with TtN (92.26 t/ha) at the same site. Conclusion and Application of Findings: The oil and aqueous extracts of Khaya senegalensis bark could therefore constitute an alternative to synthetic pesticides in the context of integrated onion disease management.

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Section: Effects Of Treatments On the Incidence Of Onion Downy Mildew...supporting

confidence: 89%

Study of the Effects of Cailcedrat (Khaya senegalensis) on Late Blight, the Main Onion Disease (Allium cepa L.) in the Department of Diamare, Far North, Cameroon

Oumarou

Kosma²,

Baptiste³

et al. 2023

IJPR

View full text Add to dashboard Cite

show abstract

Impact of some Resistance Inducers on the in vitro Growth and Sporulation of Fusarium oxysporum f. sp. lycopersici the Causal Agent of Tomato Wilt in Kazakhstan

Cited by 1 publication

References 0 publications

Study of the Effects of Cailcedrat (Khaya senegalensis) on Late Blight, the Main Onion Disease (Allium cepa L.) in the Department of Diamare, Far North, Cameroon

Study of the Effects of Cailcedrat (Khaya senegalensis) on Late Blight, the Main Onion Disease (Allium cepa L.) in the Department of Diamare, Far North, Cameroon

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