Effects of soil augmentation by Pontoscolex corethrurus on banana plant response to fusarium wilt

Fusarium wilt is a major problem to banana cultivation worldwide and thus, effective environmental-friendly control measures for the disease is in great demand. One of the method is using endogeic earthworms of which the activities of the worm influence nutrient cycle and composition of microbes in...

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Main Author: Sulaiman, Siti Rohani
Format: Thesis
Language:English
Published: 2017
Online Access:http://psasir.upm.edu.my/id/eprint/71033/1/FS%202017%2092%20IR.pdf
http://psasir.upm.edu.my/id/eprint/71033/
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Institution: Universiti Putra Malaysia
Language: English
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spelling my.upm.eprints.710332019-08-09T05:50:56Z http://psasir.upm.edu.my/id/eprint/71033/ Effects of soil augmentation by Pontoscolex corethrurus on banana plant response to fusarium wilt Sulaiman, Siti Rohani Fusarium wilt is a major problem to banana cultivation worldwide and thus, effective environmental-friendly control measures for the disease is in great demand. One of the method is using endogeic earthworms of which the activities of the worm influence nutrient cycle and composition of microbes in soil. This study was conducted to assess the impact of soil augmentation by Pontoscolex corethrurus, a tropical endogeic earthworm on banana plant response to Fusarium wilt. Photographic record and scaling of external and internal wilt symptom, plant wet weight, chlorophyll content and disease severity index (DSI) were performed. Additionally, Salicyclic acid (SA) and Jasmonic acid (JA) levels of the plants were also analysed due to their significant role in plant defense mechanism against pathogen. The results showed that the presence of earthworms contributed to higher plant wet weight, chlorophyll content and lower DSI compared to treatment without earthworm in non-infected and infected banana plants. The plants with earthworm inoculation also showed one week delayed appearances of external and internal wilt symptoms. The concentration of SA in non-infected plants with earthworm treatment showed higher value (0.72±0.09 μg/g, p<0.05) compared to without earthworm. For JA, the concentration in week 1 was doubled for infected plant with earthworm (0.96±0.01 μg/g) compared to without earthworm (0.47±0.03 μg/g). Thus, earthworms were proposed to improve plant basal defense viaintensifying the plant defense hormones. The present study suggested that soil augmentation by P. corethrurus could improve plant growth, delayed appearance of wilt symptom and improve phytohormone production for plant defense system. 2017-11 Thesis NonPeerReviewed text en http://psasir.upm.edu.my/id/eprint/71033/1/FS%202017%2092%20IR.pdf Sulaiman, Siti Rohani (2017) Effects of soil augmentation by Pontoscolex corethrurus on banana plant response to fusarium wilt. Masters thesis, Universiti Putra Malaysia.
institution Universiti Putra Malaysia
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content_provider Universiti Putra Malaysia
content_source UPM Institutional Repository
url_provider http://psasir.upm.edu.my/
language English
description Fusarium wilt is a major problem to banana cultivation worldwide and thus, effective environmental-friendly control measures for the disease is in great demand. One of the method is using endogeic earthworms of which the activities of the worm influence nutrient cycle and composition of microbes in soil. This study was conducted to assess the impact of soil augmentation by Pontoscolex corethrurus, a tropical endogeic earthworm on banana plant response to Fusarium wilt. Photographic record and scaling of external and internal wilt symptom, plant wet weight, chlorophyll content and disease severity index (DSI) were performed. Additionally, Salicyclic acid (SA) and Jasmonic acid (JA) levels of the plants were also analysed due to their significant role in plant defense mechanism against pathogen. The results showed that the presence of earthworms contributed to higher plant wet weight, chlorophyll content and lower DSI compared to treatment without earthworm in non-infected and infected banana plants. The plants with earthworm inoculation also showed one week delayed appearances of external and internal wilt symptoms. The concentration of SA in non-infected plants with earthworm treatment showed higher value (0.72±0.09 μg/g, p<0.05) compared to without earthworm. For JA, the concentration in week 1 was doubled for infected plant with earthworm (0.96±0.01 μg/g) compared to without earthworm (0.47±0.03 μg/g). Thus, earthworms were proposed to improve plant basal defense viaintensifying the plant defense hormones. The present study suggested that soil augmentation by P. corethrurus could improve plant growth, delayed appearance of wilt symptom and improve phytohormone production for plant defense system.
format Thesis
author Sulaiman, Siti Rohani
spellingShingle Sulaiman, Siti Rohani
Effects of soil augmentation by Pontoscolex corethrurus on banana plant response to fusarium wilt
author_facet Sulaiman, Siti Rohani
author_sort Sulaiman, Siti Rohani
title Effects of soil augmentation by Pontoscolex corethrurus on banana plant response to fusarium wilt
title_short Effects of soil augmentation by Pontoscolex corethrurus on banana plant response to fusarium wilt
title_full Effects of soil augmentation by Pontoscolex corethrurus on banana plant response to fusarium wilt
title_fullStr Effects of soil augmentation by Pontoscolex corethrurus on banana plant response to fusarium wilt
title_full_unstemmed Effects of soil augmentation by Pontoscolex corethrurus on banana plant response to fusarium wilt
title_sort effects of soil augmentation by pontoscolex corethrurus on banana plant response to fusarium wilt
publishDate 2017
url http://psasir.upm.edu.my/id/eprint/71033/1/FS%202017%2092%20IR.pdf
http://psasir.upm.edu.my/id/eprint/71033/
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