Evaluation of Various Plant Extracts against the Early Blight Disease of Tomato Plants under Greenhouse and Field Conditions
By S. Nashwa, K. Abo-Elyousr. 2018
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Nashwa S.M.A., Abo-Elyousr K.A.M. (2012): Evaluation of various plant extracts against the early blight disease of tomato plants under greenhouse and field conditions. Plant Protect. Sci., 48: 74–79. The antimicrobial activity of six plant extracts from ocimum basilicum (Sweat Basil) , Azadirachta indica (Neem), Eucalyptus chamadulonsis (Eucalyptus), Datura stramonium (Jimsonweed), Nerium oleander (Oleander), and Allium sativum (Garlic) was tested for controlling Alternaria solani in vitro and in vivo . In in vitro study the leaf extracts of D. stramonium, A. indica , and A. sativum at 5% concentration caused the highest reduction of mycelial growth of A. solani (44.4, 43.3 and 42.2%, respectively), while o. basilicum at 1% and 5% concentra tion and N. oleander at 5% concentration caused the lowest inhibition of mycelial growth of the pathogen. In greenhouse experiments the highest reduction of disease severity was achieved by the extracts of A. sativum at 5% concentration and D. stramonium at 1% and 5% concentration. The greatest reduction of disease severity was achieved by A. sativum at 5% concentration and the smallest reduction was obtained when tomato plants were treated with o. basilicum at 1% and 5% concentration (46.1 and 45.2 %, respectively). D. stramonium and A. sativum at 5% concentration increased the fruit yield by 76.2% and 66.7% compared to the infected control. All treatments with plant extracts significantly reduced the early blight disease as well as increased the yield of tomato compared to the infected control under field conditions.
Subfields: Cell Biology, Ecology, Evolution, Behavior and Systematics, Plant Science
View Paper: https://www.semanticscholar.org/paper/f1b1a2faa990445f2cf144af1585244a0fa6ccc9
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Citations in the corpus
- Natural Plant Products as Eco-friendly Fungicides for Plant Diseases Control- A Review (2016, background): “: cinnamon, clove, oregano, palmarosa and lemongrass oils (Marin et al., 2004), tea tree oil (Burgiel and Smaglowski, 2008), common thyme, cinnamon leaf and aniseed oils (Ćosić et al., 2010), sweet basil, neem, eucalyptus, datura, garlic and oleander extracts (Nashwa and Abo-Elyousr, 2012).”