Anthracnose Fruit Rot of Chilli (Capsicum Annum L.): Some Aspects of its Etiology, Epidemiology and Control in Peninsular Malaysia

Anthracnose Fruit Rot of Chilli (Capsicum Annum L.): Some Aspects of its Etiology, Epidemiology and Control in Peninsular Malaysia

Anthracnose fruit rot is a serious limiting factor in the production and yield of fresh chillies (Capsicum annuum L.) in Peninsular Malaysia. Isolates obtained from diseased chilli fruits collected in various localities in the country yielded the fungus, Colletotrichum capsici (Syd.) Butler &...

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Main Author: Mah, Shook Ying
Format: Thesis
Language:English
English
Published: 1987
Subjects:
Capsicum annuum - Anthracnose - Case studies
Online Access:http://psasir.upm.edu.my/id/eprint/10231/1/FP_1987_9.pdf
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spelling my-upm-ir.102312024-03-22T02:25:20Z Anthracnose Fruit Rot of Chilli (Capsicum Annum L.): Some Aspects of its Etiology, Epidemiology and Control in Peninsular Malaysia 1987-03 Mah, Shook Ying Anthracnose fruit rot is a serious limiting factor in the production and yield of fresh chillies (Capsicum annuum L.) in Peninsular Malaysia. Isolates obtained from diseased chilli fruits collected in various localities in the country yielded the fungus, Colletotrichum capsici (Syd.) Butler & Bisby. Pathogenicity studies on mature chilli fruits confirmed that C. capsici could produce typical elliptical or oblong straw-coloured lesions on the fruit surface with subsequent development of black acervuli in concentric rings. Comparison of isolates on potato dextrose agar showed that all the isolates were relatively similar in cultural and morphological characteristics. Germination of conidia occurred 3-4 hours after plating on chilli agar medium. Branching of germtubes occurred between 16-24 hour s after germination. The fungus grew over a wide range of hydrogen-ion concentrations (between pH 3.0 and pH 10.0) with optimum between pH 7.0 and pH 9.5. Acervuli formation and development was more evident on alkaline medium than on acidic medium. Optimum temperature for mycelial growth was between 25˚C and 32˚C. The minimum and maximum temperatures for visible growth were l0˚C and 45˚C , respectively. Capsicum annuum - Anthracnose - Case studies 1987-03 Thesis http://psasir.upm.edu.my/id/eprint/10231/ http://psasir.upm.edu.my/id/eprint/10231/1/FP_1987_9.pdf text en public masters Universiti Pertanian Malaysia Capsicum annuum - Anthracnose - Case studies Faculty of Agriculture Varghese, George English
institution Universiti Putra Malaysia
collection PSAS Institutional Repository
language English
English
advisor Varghese, George
topic Capsicum annuum - Anthracnose - Case studies
spellingShingle Capsicum annuum - Anthracnose - Case studies


Mah, Shook Ying
Anthracnose Fruit Rot of Chilli (Capsicum Annum L.): Some Aspects of its Etiology, Epidemiology and Control in Peninsular Malaysia
description Anthracnose fruit rot is a serious limiting factor in the production and yield of fresh chillies (Capsicum annuum L.) in Peninsular Malaysia. Isolates obtained from diseased chilli fruits collected in various localities in the country yielded the fungus, Colletotrichum capsici (Syd.) Butler & Bisby. Pathogenicity studies on mature chilli fruits confirmed that C. capsici could produce typical elliptical or oblong straw-coloured lesions on the fruit surface with subsequent development of black acervuli in concentric rings. Comparison of isolates on potato dextrose agar showed that all the isolates were relatively similar in cultural and morphological characteristics. Germination of conidia occurred 3-4 hours after plating on chilli agar medium. Branching of germtubes occurred between 16-24 hour s after germination. The fungus grew over a wide range of hydrogen-ion concentrations (between pH 3.0 and pH 10.0) with optimum between pH 7.0 and pH 9.5. Acervuli formation and development was more evident on alkaline medium than on acidic medium. Optimum temperature for mycelial growth was between 25˚C and 32˚C. The minimum and maximum temperatures for visible growth were l0˚C and 45˚C , respectively.
format Thesis
qualification_level Master's degree
author Mah, Shook Ying
author_facet Mah, Shook Ying
author_sort Mah, Shook Ying
title Anthracnose Fruit Rot of Chilli (Capsicum Annum L.): Some Aspects of its Etiology, Epidemiology and Control in Peninsular Malaysia
title_short Anthracnose Fruit Rot of Chilli (Capsicum Annum L.): Some Aspects of its Etiology, Epidemiology and Control in Peninsular Malaysia
title_full Anthracnose Fruit Rot of Chilli (Capsicum Annum L.): Some Aspects of its Etiology, Epidemiology and Control in Peninsular Malaysia
title_fullStr Anthracnose Fruit Rot of Chilli (Capsicum Annum L.): Some Aspects of its Etiology, Epidemiology and Control in Peninsular Malaysia
title_full_unstemmed Anthracnose Fruit Rot of Chilli (Capsicum Annum L.): Some Aspects of its Etiology, Epidemiology and Control in Peninsular Malaysia
title_sort anthracnose fruit rot of chilli (capsicum annum l.): some aspects of its etiology, epidemiology and control in peninsular malaysia
granting_institution Universiti Pertanian Malaysia
granting_department Faculty of Agriculture
publishDate 1987
url http://psasir.upm.edu.my/id/eprint/10231/1/FP_1987_9.pdf
_version_ 1804888527339520000

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