Physiological And Histopathological Analyses Of Silicon Mediated Resistance On Rigidoporus Microporus In Rubber Rootstock Seedlings (Hevea Brasiliensis)

White root disease (WRD) is the most severe root disease caused by a soil-borne fungus, mainly Rigidoporus microporus. This pathogen destroys the root system, leading to the death of the rubber tree, Hevea brasiliensis Muell. Arg. The periodical application of chemical fungicides (propiconazole) to...

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Main Author: Shaikh Abd Hadi, Shaikh Mohd Hizami
Format: Thesis
Language:English
Published: 2022
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Online Access:http://eprints.usm.my/59791/1/24%20Pages%20from%20SHAIKH%20MOHD%20HIZAMI%20BIN%20SHAIKH%20ABD%20HADI.pdf
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spelling my-usm-ep.597912024-02-02T02:51:59Z Physiological And Histopathological Analyses Of Silicon Mediated Resistance On Rigidoporus Microporus In Rubber Rootstock Seedlings (Hevea Brasiliensis) 2022-09 Shaikh Abd Hadi, Shaikh Mohd Hizami QH1-278.5 Natural history (General) White root disease (WRD) is the most severe root disease caused by a soil-borne fungus, mainly Rigidoporus microporus. This pathogen destroys the root system, leading to the death of the rubber tree, Hevea brasiliensis Muell. Arg. The periodical application of chemical fungicides (propiconazole) to control this pathogen has caused environmental pollution issues, hazardous to users, and costly. As an option, the application of silicon integrated fertiliser has proven to be successful in managing diseases on rice, apple, chestnut tree and many else. This study aimed to explore the possibility of using soluble silicon to control the incidence of WRD. The variability study and laccase enzyme production test on nine R. microporus isolates from the culture stock were carried out to select three isolates that showed a significant virulence level. In a pathogenicity test, selected isolates of R. microporus were then inoculated on rubber rootstock seedlings to choose the most virulent isolate. Ayer Molek (AM) isolate was indicated to be the most virulent isolate of R. microporus and had been used in further experiments as a primary source of the pathogen. As an alternative element to propiconazole fungicides, studies had been conducted to determine the effect of different types of soluble silicon (silicic acid, sodium meta-silicate, sodium silicate, and calcium silicate) application on R. microporus growth in both in-vitro and in-vivo study. 2022-09 Thesis http://eprints.usm.my/59791/ http://eprints.usm.my/59791/1/24%20Pages%20from%20SHAIKH%20MOHD%20HIZAMI%20BIN%20SHAIKH%20ABD%20HADI.pdf application/pdf en public phd doctoral Perpustakaan Hamzah Sendut Pusat Pengajian Sains Kajihayat
institution Universiti Sains Malaysia
collection USM Institutional Repository
language English
topic QH1-278.5 Natural history (General)
spellingShingle QH1-278.5 Natural history (General)
Shaikh Abd Hadi, Shaikh Mohd Hizami
Physiological And Histopathological Analyses Of Silicon Mediated Resistance On Rigidoporus Microporus In Rubber Rootstock Seedlings (Hevea Brasiliensis)
description White root disease (WRD) is the most severe root disease caused by a soil-borne fungus, mainly Rigidoporus microporus. This pathogen destroys the root system, leading to the death of the rubber tree, Hevea brasiliensis Muell. Arg. The periodical application of chemical fungicides (propiconazole) to control this pathogen has caused environmental pollution issues, hazardous to users, and costly. As an option, the application of silicon integrated fertiliser has proven to be successful in managing diseases on rice, apple, chestnut tree and many else. This study aimed to explore the possibility of using soluble silicon to control the incidence of WRD. The variability study and laccase enzyme production test on nine R. microporus isolates from the culture stock were carried out to select three isolates that showed a significant virulence level. In a pathogenicity test, selected isolates of R. microporus were then inoculated on rubber rootstock seedlings to choose the most virulent isolate. Ayer Molek (AM) isolate was indicated to be the most virulent isolate of R. microporus and had been used in further experiments as a primary source of the pathogen. As an alternative element to propiconazole fungicides, studies had been conducted to determine the effect of different types of soluble silicon (silicic acid, sodium meta-silicate, sodium silicate, and calcium silicate) application on R. microporus growth in both in-vitro and in-vivo study.
format Thesis
qualification_name Doctor of Philosophy (PhD.)
qualification_level Doctorate
author Shaikh Abd Hadi, Shaikh Mohd Hizami
author_facet Shaikh Abd Hadi, Shaikh Mohd Hizami
author_sort Shaikh Abd Hadi, Shaikh Mohd Hizami
title Physiological And Histopathological Analyses Of Silicon Mediated Resistance On Rigidoporus Microporus In Rubber Rootstock Seedlings (Hevea Brasiliensis)
title_short Physiological And Histopathological Analyses Of Silicon Mediated Resistance On Rigidoporus Microporus In Rubber Rootstock Seedlings (Hevea Brasiliensis)
title_full Physiological And Histopathological Analyses Of Silicon Mediated Resistance On Rigidoporus Microporus In Rubber Rootstock Seedlings (Hevea Brasiliensis)
title_fullStr Physiological And Histopathological Analyses Of Silicon Mediated Resistance On Rigidoporus Microporus In Rubber Rootstock Seedlings (Hevea Brasiliensis)
title_full_unstemmed Physiological And Histopathological Analyses Of Silicon Mediated Resistance On Rigidoporus Microporus In Rubber Rootstock Seedlings (Hevea Brasiliensis)
title_sort physiological and histopathological analyses of silicon mediated resistance on rigidoporus microporus in rubber rootstock seedlings (hevea brasiliensis)
granting_institution Perpustakaan Hamzah Sendut
granting_department Pusat Pengajian Sains Kajihayat
publishDate 2022
url http://eprints.usm.my/59791/1/24%20Pages%20from%20SHAIKH%20MOHD%20HIZAMI%20BIN%20SHAIKH%20ABD%20HADI.pdf
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