Role of Silica in Resistance to Asiatic Rice Borer,Chilo suppressalis (Walker), in Rice Varieties1
Authors: DJAMIN, ARIFIN; PATHAK, M. D.
Source: Journal of Economic Entomology, Volume 60, Number 2, April 1967 , pp. 347-351(5)
Publisher: Entomological Society of America
Abstract:This study was conducted to test the reactions of several rice varieties to Asiatic rice borer infestation under natural field conditions, and to examine the relationship between plant silica content and susceptibility to stem borer.
Based on results from 3 different tests, the varieties could be classified into 3 groups: resistant, moderately resistant, and susceptible. Reactions to the Asiatic rice borer infestation were highly consistent, indicating that resistance was due to inherent varietal characters. A highly significant negative correlation was recorded between silica content of the stem and susceptibility to the rice borer. High silica content in the plant seemed to interfere with feeding and boring of the larvae and could cause defacing of their mandibles.
Although several studies have reported the effects of silica on rice borer susceptibility, this is the first report of varietal difference in plant silica content. The use of varieties with high silica content is a more practical and economical method of reducing rice borer infestation than applying silicate to paddy soil.
Document Type: Research Article
Publication date: April 1, 1967
- Journal of Economic Entomology is published bimonthly in February, April, June, August, October, and December. The journal publishes articles on the economic significance of insects and is divided into the following sections: apiculture & social insects; arthropods in relation to plant disease; forum; insecticide resistance and resistance management; ecotoxicology; biological and microbial control; ecology and behavior; sampling and biostatistics; household and structural insects; medical entomology; molecular entomology; veterinary entomology; forest entomology; horticultural entomology; field and forage crops, and small grains; stored-product; commodity treatment and quarantine entomology; and plant resistance. In addition to research papers, Journal of Economic Entomology publishes Letters to the Editor, interpretive articles in a Forum section, Short Communications, Rapid Communications, and Book Reviews.
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