Field efficacy of aqueous extracts of Artemisia annua, Commelina benghalensis and Euphorbia hirta on rice growth, yield and brown spot disease incidence
Journal article
Djeugap, J.F., Mbatkam, B., Sonkoue, A.M., Dida, S.L., Galani Y.J.H, Mbi, C., Lapa, M. and Anchang, K.Y. 2023. Field efficacy of aqueous extracts of Artemisia annua, Commelina benghalensis and Euphorbia hirta on rice growth, yield and brown spot disease incidence. Agriculture and Natural Resources. 57 (3), p. 417–426. https://doi.org/10.34044/j.anres.2023.57.3.06
Authors | Djeugap, J.F., Mbatkam, B., Sonkoue, A.M., Dida, S.L., Galani Y.J.H, Mbi, C., Lapa, M. and Anchang, K.Y. |
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Abstract | Importance of the work: Brown leaf spot disease is one of the major causes of yield losses in rice production in Cameroon. Objectives: To evaluate the bioactivity of aqueous extracts of three Cameroonian medicinal plants on rice growth, yield and brown spot disease incidence. Results: NERICAs 8 and L56 (exotic) and, Toukbem (local) varieties had the highest number of leaves and tillers while Toukbem had the highest plants and leaf area at 9 wk after transplanting. The numbers of leaves (31.3) and tillers (9.7) were significantly (p < 0.05) higher in plants treated with Euphorbia hirta extract at 67 g/L compared to Artemesia annua and Commelina benghalensis extracts. Brown spot severity was lower with E. hirta at 134 g/L (30%) and not significantly different to Mancozeb (23.6%). The NERICA L56 × E. hirta interaction at 134 g/L had the highest yield (5.8 t/ha) compared to the NERICA L56 × Mancozeb (6.1 t/ha) interaction. Chemical analysis of the E. hirta aqueous extract showed the presence of known bioactive compounds. Main finding: Field application of aqueous extract of E. hirta at 134 g/L could be used as a bioagent for rice brown spot management. The formulation of a natural product with this extract is necessary for large-scale field applications. |
Keywords | Botanical fungicide; Brown spot disease; Euphorbia hirta; Oryza sativa; Yield |
Year | 2023 |
Journal | Agriculture and Natural Resources |
Journal citation | 57 (3), p. 417–426 |
Publisher | Kasetsart University |
ISSN | 2452-316X |
Digital Object Identifier (DOI) | https://doi.org/10.34044/j.anres.2023.57.3.06 |
Official URL | https://li01.tci-thaijo.org/index.php/anres/article/view/259713 |
Publication dates | |
11 Jul 2023 | |
Publication process dates | |
Accepted | 03 May 2023 |
Deposited | 26 Jul 2023 |
Publisher's version | License File Access Level Open |
Output status | Published |
https://repository.canterbury.ac.uk/item/951wx/field-efficacy-of-aqueous-extracts-of-artemisia-annua-commelina-benghalensis-and-euphorbia-hirta-on-rice-growth-yield-and-brown-spot-disease-incidence
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Publisher's version
Djeugap et al. 2023-Field efficacy aqueous extracts on rice growth, yield and brown spot disease incidence.pdf | ||
License: CC BY-NC-ND 4.0 | ||
File access level: Open |
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