Sokoine University of Agriculture

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

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dc.contributor.author Hubert, Judith
dc.contributor.author Mabagala, Robert B.
dc.contributor.author Mamiro, Delphina P.
dc.date.accessioned 2017-02-27T12:31:24Z
dc.date.available 2017-02-27T12:31:24Z
dc.date.issued 2015
dc.identifier.uri https://www.suaire.sua.ac.tz/handle/123456789/1298
dc.description American Journal of Plant Sciences, 2015, 6, 602-611 en_US
dc.description.abstract Rice 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. en_US
dc.language.iso en en_US
dc.publisher American Journal of Plant Sciences en_US
dc.relation.ispartofseries American Journal of Plant Sciences;2015, 6, 602-611
dc.subject Plant Extracts en_US
dc.subject Pyricularia grisea en_US
dc.subject Rice en_US
dc.subject Rice Blast Disease en_US
dc.title Efficacy of selected plant extracts against Pyricularia Grisea, causal agent of rice blast disease en_US
dc.type Article en_US
dc.url http://creativecommons.org/licenses/by/4.0/ en_US


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