Screening for Sarawak paddy landraces with resistance to yellow rice stem borer Scirpophaga incertulas (Walker) (Lepidoptera: crambidae)


Citation

Nur Najwa Hamsein, . and Yeo Freddy Kuok San, . and Mogeret Sidi, . and Wan Nurainie Wan Ismail, . and Ling Alvin Xian Rong, . and Annebell Stphanie Taji, . and Ting Hieng Ming, . and Cheok Yin Hui, . Screening for Sarawak paddy landraces with resistance to yellow rice stem borer Scirpophaga incertulas (Walker) (Lepidoptera: crambidae). pp. 491-501. ISSN 1511-3701

Abstract

The yellow rice stem borer Scirpophaga incertulas (Walker) is a prevalent pest in paddy fields worldwide. In Sarawak a survey on pest of paddy carried out from 2009 to 2011 covering 166 paddy fields revealed that rice stem borers caused 11.4 of total paddy damage. In order to reduce the damage identifying resistance paddy variety is crucial. The objective of this study was to screen Sarawak paddy landraces with resistance to S. incertulas. Twelve Sarawak paddy landraces were selected randomly for this study. Antixenosis resistance screening was performed in aquariums (60 x 28 x 33 cm). Three replications of one-monthold seedlings were randomly arranged in aquarium and exposed to adult S. incertulas. The number and position of egg mass on each plant were recorded. Egg mass abnormalities were also observed. For antibiosis rice culms of two-month old seedlings from each landrace were infested with larvae. The length of surviving larvae from five rice culms was measured. The experiment revealed variations in landrace of preference for ovipositing. Among the twelve Sarawak paddy landraces Kanowit was more preferred by S. incertulas for ovipositing in comparison to other paddy landraces suggesting susceptibility towards the pest. Abaxial leaf surface was the preferred oviposition site. There was no clear antibiosis response of the paddy landraces towards S. incertulas larvae in this study.


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Abstract

The yellow rice stem borer Scirpophaga incertulas (Walker) is a prevalent pest in paddy fields worldwide. In Sarawak a survey on pest of paddy carried out from 2009 to 2011 covering 166 paddy fields revealed that rice stem borers caused 11.4 of total paddy damage. In order to reduce the damage identifying resistance paddy variety is crucial. The objective of this study was to screen Sarawak paddy landraces with resistance to S. incertulas. Twelve Sarawak paddy landraces were selected randomly for this study. Antixenosis resistance screening was performed in aquariums (60 x 28 x 33 cm). Three replications of one-monthold seedlings were randomly arranged in aquarium and exposed to adult S. incertulas. The number and position of egg mass on each plant were recorded. Egg mass abnormalities were also observed. For antibiosis rice culms of two-month old seedlings from each landrace were infested with larvae. The length of surviving larvae from five rice culms was measured. The experiment revealed variations in landrace of preference for ovipositing. Among the twelve Sarawak paddy landraces Kanowit was more preferred by S. incertulas for ovipositing in comparison to other paddy landraces suggesting susceptibility towards the pest. Abaxial leaf surface was the preferred oviposition site. There was no clear antibiosis response of the paddy landraces towards S. incertulas larvae in this study.

Additional Metadata

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Item Type: Article
AGROVOC Term: Paddy
AGROVOC Term: Rice
AGROVOC Term: Oryza sativa
AGROVOC Term: Pest surveys
AGROVOC Term: Scirpophaga incertulas
AGROVOC Term: Lepidoptera
AGROVOC Term: Insect pests
AGROVOC Term: Stem borers
AGROVOC Term: Larvae
AGROVOC Term: Antibiosis
Depositing User: Mr. AFANDI ABDUL MALEK
Last Modified: 24 Apr 2025 00:55
URI: http://webagris.upm.edu.my/id/eprint/9539

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