The pathogenicity test of blast disease on its alternative host / Nurul Nazwa Azaman

Rice is one of the main staple foods consumed by many people especially people in Asia countries and the demand for rice is increasing year by year due to the growing population. The blast diseased is caused by Pyricularia oryzae, an acomycete fungus. Somehow, the P.oryzae can thrive well in differe...

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Main Author: Azaman, Nurul Nazwa
Format: Student Project
Language:English
Published: Faculty of Plantation and Agrotechnology 2018
Subjects:
Online Access:https://ir.uitm.edu.my/id/eprint/22843/
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author Azaman, Nurul Nazwa
author_facet Azaman, Nurul Nazwa
author_sort Azaman, Nurul Nazwa
building UiTM Institutional Repository
collection Online Access
description Rice is one of the main staple foods consumed by many people especially people in Asia countries and the demand for rice is increasing year by year due to the growing population. The blast diseased is caused by Pyricularia oryzae, an acomycete fungus. Somehow, the P.oryzae can thrive well in different wild weed hosts such as Eleusine indica, Leptochloa chinensis, Echinochloa colona and staple crop, Zea mays. The study was to investigate the P. oryzae isolates ability to infect grasses weed and staple crop through pathogenicity test. The inoculation was done by using approximately 0.5 cm of cultured fungus agar. The agar was placed onto the injured part of a leaf and then was covered using moist cotton. All treatments were inoculated using the same method. Symptoms of the blast were identified after five days inoculation, and length of lesions was measured. The pathogenicity test showed that P. oryzae is pathogenic to all treatments, which are O. sativa, L. chinensis, E.colona, E. indica and Z. mays but with different susceptibility rate. The susceptibility of each host was identified using Standard Screening Scale by IRRI. According to IRRI, L. chinenis is highly susceptible with a scale of nine, meanwhile, E. colona and E. indica is susceptible with the scale of six and seven and Z. mays is moderately susceptible with the scale of four.
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spelling uitm-228432020-07-30T04:19:28Z https://ir.uitm.edu.my/id/eprint/22843/ The pathogenicity test of blast disease on its alternative host / Nurul Nazwa Azaman Azaman, Nurul Nazwa S Agriculture (General) Pests and diseases Pest control and treatment of diseases. Plant protection Rice is one of the main staple foods consumed by many people especially people in Asia countries and the demand for rice is increasing year by year due to the growing population. The blast diseased is caused by Pyricularia oryzae, an acomycete fungus. Somehow, the P.oryzae can thrive well in different wild weed hosts such as Eleusine indica, Leptochloa chinensis, Echinochloa colona and staple crop, Zea mays. The study was to investigate the P. oryzae isolates ability to infect grasses weed and staple crop through pathogenicity test. The inoculation was done by using approximately 0.5 cm of cultured fungus agar. The agar was placed onto the injured part of a leaf and then was covered using moist cotton. All treatments were inoculated using the same method. Symptoms of the blast were identified after five days inoculation, and length of lesions was measured. The pathogenicity test showed that P. oryzae is pathogenic to all treatments, which are O. sativa, L. chinensis, E.colona, E. indica and Z. mays but with different susceptibility rate. The susceptibility of each host was identified using Standard Screening Scale by IRRI. According to IRRI, L. chinenis is highly susceptible with a scale of nine, meanwhile, E. colona and E. indica is susceptible with the scale of six and seven and Z. mays is moderately susceptible with the scale of four. Faculty of Plantation and Agrotechnology 2018 Student Project NonPeerReviewed text en https://ir.uitm.edu.my/id/eprint/22843/1/22843.pdf Azaman, Nurul Nazwa (2018) The pathogenicity test of blast disease on its alternative host / Nurul Nazwa Azaman. (2018) [Student Project] <http://terminalib.uitm.edu.my/22843.pdf> (Unpublished)
spellingShingle S Agriculture (General)
Pests and diseases
Pest control and treatment of diseases. Plant protection
Azaman, Nurul Nazwa
The pathogenicity test of blast disease on its alternative host / Nurul Nazwa Azaman
title The pathogenicity test of blast disease on its alternative host / Nurul Nazwa Azaman
title_full The pathogenicity test of blast disease on its alternative host / Nurul Nazwa Azaman
title_fullStr The pathogenicity test of blast disease on its alternative host / Nurul Nazwa Azaman
title_full_unstemmed The pathogenicity test of blast disease on its alternative host / Nurul Nazwa Azaman
title_short The pathogenicity test of blast disease on its alternative host / Nurul Nazwa Azaman
title_sort pathogenicity test of blast disease on its alternative host / nurul nazwa azaman
topic S Agriculture (General)
Pests and diseases
Pest control and treatment of diseases. Plant protection
url https://ir.uitm.edu.my/id/eprint/22843/