Efficacy of selected plant extracts against Pyricularia Grisea, causal agent of rice blast disease

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dc.creatorHubert, Judith
dc.creatorMabagala, Robert B.
dc.creatorMamiro, Delphina P.
dc.date2017-02-27T12:31:24Z
dc.date2017-02-27T12:31:24Z
dc.date2015
dc.date.accessioned2022-10-25T08:53:07Z
dc.date.available2022-10-25T08:53:07Z
dc.descriptionAmerican Journal of Plant Sciences, 2015, 6, 602-611
dc.descriptionRice blast disease, caused by a seed-borne fungus Pyricularia grisea, is an important and serious disease of rice (Oryza sativa L.) worldwide. The disease has been reported to cause yield losses of up to 40% in Tanzania. Studies were conducted to determine the effect of aqueous extracts of Aloe vera, Allium sativum, Annona muricata, Azadirachta indica, Bidens pilosa, Camellia sinensis, Chrysanthemum coccineum, processed Coffee arabica, Datura stramonium, Nicotiana tabacum and Zingiber officinalis for control of rice blast disease (Pyricularia grisea) in-vitro and in-vivo. The results indicate that processed C. arabica at 10% and 25% (v/v) had the highest (81.12%) and (89.40%) inhibitory effect, respectively, against P. grisea. Aqueous extract from N. tabacum at 10% concentration ranked third (80.35%) in inhibiting P. grisea. These were followed by extracts from 25% A. vera (79.45%) and 25% C. coccineum flower (78.83%). The results also indicate that, extracts from A. indica, A. vera, A. sativum, C. arabica, D. stramonium, C. sinensis, Z. officinalis and N. tabacum did not have any phytotoxic effect on seed germination, shoot height, root length, dry weight, seedling growth and seedling vigour index. These plant extracts can thus be used for rice seed treatment to manage rice blast disease.
dc.formatapplication/pdf
dc.identifierhttps://www.suaire.sua.ac.tz/handle/123456789/1298
dc.identifier.urihttp://hdl.handle.net/123456789/93375
dc.languageen
dc.publisherAmerican Journal of Plant Sciences
dc.relationAmerican Journal of Plant Sciences;2015, 6, 602-611
dc.subjectPlant Extracts
dc.subjectPyricularia grisea
dc.subjectRice
dc.subjectRice Blast Disease
dc.titleEfficacy of selected plant extracts against Pyricularia Grisea, causal agent of rice blast disease
dc.typeArticle

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