Greenbug: effects of continuous culturing on resistant sorghum

Starks, K.J. and Schuster, D.J. (1976) Greenbug: effects of continuous culturing on resistant sorghum. Environmental Entomology, 5 (4). pp. 720-723.

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Biotype C of a laboratory strain of Schizaphis graminum (Rond.), was cultured in the greenhouse in Oklahoma on resistant sorghum entries for about 2 years. About every 4 months, the components of resistance of the plant were measured to determine whether new biotypes had occurred. Although non-preference and tolerance did not change significantly within an entry, the fecundity of aphids on the resistant entries decreased. This reduction persisted when the aphids were transferred directly to susceptible "Wheatland" and then tested, but it did not persist when they were left on Wheatland for 4 months before testing. Thus the reduction in reproduction was probably a conditioning effect and not a mutation

Item Type: Article
Author Affiliation: ARS, USDA, Department of Entomology, Oklahoma State University, Stillwater, OK 74074, USA
Subjects: Plant Protection
Divisions: Sorghum
Depositing User: Ms K Syamalamba
Date Deposited: 17 Sep 2012 05:27
Last Modified: 17 Sep 2012 05:28

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