Etiology and Control of Phytophthora Infestans (Mont.) De Bary in Malaysia

Phytophthora infestans (Mont.) De Bary is the causal agent of late blight disease of tomato, a major destructive disease of tomato in Cameron Highlands. The study undertaken was to isolate the pathogen on artificial media. The morphology and cultural characteristics were described. Disease deve...

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Main Author:	Mohd Yunus, Ahmad Kamil
Format:	Thesis
Language:	English English
Published:	1994
Subjects:	Tomatoes - Diseases and pests - Control - Malaysia Tomatoes - Disease and pest resistance - Malaysia Phytophtora infestans
Online Access:	http://psasir.upm.edu.my/id/eprint/10345/1/FP_1994_4_A.pdf
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id	my-upm-ir.10345
record_format	uketd_dc
spelling	my-upm-ir.103452011-03-22T09:43:44Z Etiology and Control of Phytophthora Infestans (Mont.) De Bary in Malaysia 1994 Mohd Yunus, Ahmad Kamil Phytophthora infestans (Mont.) De Bary is the causal agent of late blight disease of tomato, a major destructive disease of tomato in Cameron Highlands. The study undertaken was to isolate the pathogen on artificial media. The morphology and cultural characteristics were described. Disease development of P. infestans isolates on tomato was also studied. In-vivo sensitivity of the isolates towards metalaxyl was tested. Disease epidemiology studies were conducted during the two tomato planting periods in Cameron Highlands. Three isolates of P. infestans from Cameron High lands were isolated on Rye Grain Agar (RGrA), V-8 Juice Agar (V8JA) and Rye wholemeal Agar (RWMA) allamended with antibiotics with percentage recovery of 2%, 0.1% and 0.4% respectively. The P. infestans isolates were designated as PIB/01, PIH/01 and PIKR/01. No growth was observed on the two other media viz. Pea Agar and Difco LBA. Successful isolation were aided by baiting using potato tuber slices. Morphological studies of the P. infestans isolate showed that the mean zoosporangia size was 37.25um x 19.71um, mean L/B ratio of 1.91 and mean short pedicel length of 1.60um. Mean zoospores diameter measured 9.99 um. No chlamydospores was produced in culture. Tomatoes - Diseases and pests - Control - Malaysia Tomatoes - Disease and pest resistance - Malaysia Phytophtora infestans 1994 Thesis http://psasir.upm.edu.my/id/eprint/10345/ http://psasir.upm.edu.my/id/eprint/10345/1/FP_1994_4_A.pdf application/pdf en public masters Universiti Pertanian Malaysia Tomatoes - Diseases and pests - Control - Malaysia Tomatoes - Disease and pest resistance - Malaysia Phytophtora infestans Faculty of Agriculture English
institution	Universiti Putra Malaysia
collection	PSAS Institutional Repository
language	English English
topic	Tomatoes - Diseases and pests - Control - Malaysia Tomatoes - Disease and pest resistance - Malaysia Phytophtora infestans
spellingShingle	Tomatoes - Diseases and pests - Control - Malaysia Tomatoes - Disease and pest resistance - Malaysia Phytophtora infestans Mohd Yunus, Ahmad Kamil Etiology and Control of Phytophthora Infestans (Mont.) De Bary in Malaysia
description	Phytophthora infestans (Mont.) De Bary is the causal agent of late blight disease of tomato, a major destructive disease of tomato in Cameron Highlands. The study undertaken was to isolate the pathogen on artificial media. The morphology and cultural characteristics were described. Disease development of P. infestans isolates on tomato was also studied. In-vivo sensitivity of the isolates towards metalaxyl was tested. Disease epidemiology studies were conducted during the two tomato planting periods in Cameron Highlands. Three isolates of P. infestans from Cameron High lands were isolated on Rye Grain Agar (RGrA), V-8 Juice Agar (V8JA) and Rye wholemeal Agar (RWMA) allamended with antibiotics with percentage recovery of 2%, 0.1% and 0.4% respectively. The P. infestans isolates were designated as PIB/01, PIH/01 and PIKR/01. No growth was observed on the two other media viz. Pea Agar and Difco LBA. Successful isolation were aided by baiting using potato tuber slices. Morphological studies of the P. infestans isolate showed that the mean zoosporangia size was 37.25um x 19.71um, mean L/B ratio of 1.91 and mean short pedicel length of 1.60um. Mean zoospores diameter measured 9.99 um. No chlamydospores was produced in culture.
format	Thesis
qualification_level	Master's degree
author	Mohd Yunus, Ahmad Kamil
author_facet	Mohd Yunus, Ahmad Kamil
author_sort	Mohd Yunus, Ahmad Kamil
title	Etiology and Control of Phytophthora Infestans (Mont.) De Bary in Malaysia
title_short	Etiology and Control of Phytophthora Infestans (Mont.) De Bary in Malaysia
title_full	Etiology and Control of Phytophthora Infestans (Mont.) De Bary in Malaysia
title_fullStr	Etiology and Control of Phytophthora Infestans (Mont.) De Bary in Malaysia
title_full_unstemmed	Etiology and Control of Phytophthora Infestans (Mont.) De Bary in Malaysia
title_sort	etiology and control of phytophthora infestans (mont.) de bary in malaysia
granting_institution	Universiti Pertanian Malaysia
granting_department	Faculty of Agriculture
publishDate	1994
url	http://psasir.upm.edu.my/id/eprint/10345/1/FP_1994_4_A.pdf
_version_	1747811101549002752

Etiology and Control of Phytophthora Infestans (Mont.) De Bary in Malaysia

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