Aggressiveness of ganoderma boninense isolates On the vegetative growth of oil palm (Elaeis guineensis) seedlings at different ages

Basal stem rot (BSR) disease caused by Ganoderma boninense is rapidly spreading in both coastal and inland soils planted with oil palms (Elaeis guineensis) across Indonesia and Malaysia. A study was conducted to evaluate the effects of different G. boninense isolates collected from different regio...

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Main Authors:	Goh, Y.K., Ng, F.W., Kok, S.M., Goh, K.J.
Format:	Article
Language:	English
Published:	Penerbit Universiti Kebangsaan Malaysia 2014
Online Access:	http://journalarticle.ukm.my/8674/ http://journalarticle.ukm.my/8674/ http://journalarticle.ukm.my/8674/1/43_2_02.pdf

id	ukm-8674
recordtype	eprints
spelling	ukm-86742016-12-14T06:47:51Z http://journalarticle.ukm.my/8674/ Aggressiveness of ganoderma boninense isolates On the vegetative growth of oil palm (Elaeis guineensis) seedlings at different ages Goh, Y.K. Ng, F.W. Kok, S.M. Goh, Y.K. Goh, K.J. Basal stem rot (BSR) disease caused by Ganoderma boninense is rapidly spreading in both coastal and inland soils planted with oil palms (Elaeis guineensis) across Indonesia and Malaysia. A study was conducted to evaluate the effects of different G. boninense isolates collected from different regions of Peninsular Malaysia on oil palm seedlings. Ganoderma boninense isolates from 12 different estates located in 7 states were collected and used for assessing the effects of pathogenic Ganoderma isolates on 2- and 5-month-old oil palm seedlings. These seedlings were challenged artificially with Ganoderma-inoculated rubber wood blocks as the inoculum source. Based on the disease severity index (DSI), G. boninense isolates from Bt Lintang (Kedah) (T10) (63.3%) were the most aggressive, whereas, Fraser (Johor) (T4) (8.3%) and Pinji (Perak) (T8) (3.7%) were the least aggressive. Vegetative growth measurements (VGM), namely leaf area (cm2), diameter of the bole girth (cm) and height (cm), for both 2- and 5-month-old seedlings challenged with the most aggressive T10 isolate were significantly lower compared to both of the least aggressive isolates – T4 and T8, as well as the controls at 4 months-after-treatment (MAT). The linear correlation between DSI with VGM at 16-weeks after treatment was negative, ranging from 0.64 to 0.88 for 5-month-old seedlings. Two-month-old seedlings are more preferable in the future nursery experiments compared to 5- month-old seedlings, as the former seedlings were more responsive in terms of DSI and all the VGM parameters measured. Penerbit Universiti Kebangsaan Malaysia 2014-12 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/8674/1/43_2_02.pdf Goh, Y.K. and Ng, F.W. and Kok, S.M. and Goh, Y.K. and Goh, K.J. (2014) Aggressiveness of ganoderma boninense isolates On the vegetative growth of oil palm (Elaeis guineensis) seedlings at different ages. Malaysian Applied Biology, 43 (2). pp. 9-16. ISSN 0126-8643 http://mabjournal.com/index.php?option=com_content&view=article&id=460&catid=59:current-view&Itemid=56
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Kebangasaan Malaysia
building	UKM Institutional Repository
collection	Online Access
language	English
description	Basal stem rot (BSR) disease caused by Ganoderma boninense is rapidly spreading in both coastal and inland soils planted with oil palms (Elaeis guineensis) across Indonesia and Malaysia. A study was conducted to evaluate the effects of different G. boninense isolates collected from different regions of Peninsular Malaysia on oil palm seedlings. Ganoderma boninense isolates from 12 different estates located in 7 states were collected and used for assessing the effects of pathogenic Ganoderma isolates on 2- and 5-month-old oil palm seedlings. These seedlings were challenged artificially with Ganoderma-inoculated rubber wood blocks as the inoculum source. Based on the disease severity index (DSI), G. boninense isolates from Bt Lintang (Kedah) (T10) (63.3%) were the most aggressive, whereas, Fraser (Johor) (T4) (8.3%) and Pinji (Perak) (T8) (3.7%) were the least aggressive. Vegetative growth measurements (VGM), namely leaf area (cm2), diameter of the bole girth (cm) and height (cm), for both 2- and 5-month-old seedlings challenged with the most aggressive T10 isolate were significantly lower compared to both of the least aggressive isolates – T4 and T8, as well as the controls at 4 months-after-treatment (MAT). The linear correlation between DSI with VGM at 16-weeks after treatment was negative, ranging from 0.64 to 0.88 for 5-month-old seedlings. Two-month-old seedlings are more preferable in the future nursery experiments compared to 5- month-old seedlings, as the former seedlings were more responsive in terms of DSI and all the VGM parameters measured.
format	Article
author	Goh, Y.K. Ng, F.W. Kok, S.M. Goh, Y.K. Goh, K.J.
spellingShingle	Goh, Y.K. Ng, F.W. Kok, S.M. Goh, Y.K. Goh, K.J. Aggressiveness of ganoderma boninense isolates On the vegetative growth of oil palm (Elaeis guineensis) seedlings at different ages
author_facet	Goh, Y.K. Ng, F.W. Kok, S.M. Goh, Y.K. Goh, K.J.
author_sort	Goh, Y.K.
title	Aggressiveness of ganoderma boninense isolates On the vegetative growth of oil palm (Elaeis guineensis) seedlings at different ages
title_short	Aggressiveness of ganoderma boninense isolates On the vegetative growth of oil palm (Elaeis guineensis) seedlings at different ages
title_full	Aggressiveness of ganoderma boninense isolates On the vegetative growth of oil palm (Elaeis guineensis) seedlings at different ages
title_fullStr	Aggressiveness of ganoderma boninense isolates On the vegetative growth of oil palm (Elaeis guineensis) seedlings at different ages
title_full_unstemmed	Aggressiveness of ganoderma boninense isolates On the vegetative growth of oil palm (Elaeis guineensis) seedlings at different ages
title_sort	aggressiveness of ganoderma boninense isolates on the vegetative growth of oil palm (elaeis guineensis) seedlings at different ages
publisher	Penerbit Universiti Kebangsaan Malaysia
publishDate	2014
url	http://journalarticle.ukm.my/8674/ http://journalarticle.ukm.my/8674/ http://journalarticle.ukm.my/8674/1/43_2_02.pdf
first_indexed	2023-09-18T19:52:56Z
last_indexed	2023-09-18T19:52:56Z
_version_	1777406339926982656

Aggressiveness of ganoderma boninense isolates On the vegetative growth of oil palm (Elaeis guineensis) seedlings at different ages

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