p-Hydroxybenzaldehyde in the surface wax of sorghum: its importance in seedling resistance to acridids

Woodhead, S. (1982) p-Hydroxybenzaldehyde in the surface wax of sorghum: its importance in seedling resistance to acridids. Entomologia Experimentalis et Applicata, 31 (3). pp. 296-302.

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Abstract

The deterrent effects of a lipid extract from seedling sorghum on Locusta migratoria migratorioides (R. & F.) were found to reside in several of the surface wax components of the extracts. 4-Hydroxybenzaldehyde was been identified as an antifeedant present in the surface wax of all cultivars examined. Its concentration in the wax varied considerably with cultivar, and in some (e.g. 65D and CSH 1) it was present at concentrations that were highly deterrent to Locusta. In all cultivars, its concentration decreased with increasing plant age and palatability, and it was only present in deterrent amounts in the early stages of growth. Sorghum seedlings appear to possess particularly thick or resistant cuticular waxes as compared to other Gramineae, and the chemical composition of the waxes of all the cultivars examined appeared to be qualitatively similar

Item Type: Article
Author Affiliation: Centre for Overseas Pest Research, London W8 5SJ, UK
Subjects: Plant Protection
Crop Improvement
Divisions: Sorghum
Depositing User: Mr B Krishnamurthy
Date Deposited: 23 Apr 2012 15:04
Last Modified: 23 Apr 2012 15:04
Official URL: http://dx.doi.org/10.1111/j.1570-7458.1982.tb03148...
URI: http://eprints.icrisat.ac.in/id/eprint/4878

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