Translator Disclaimer
1 December 2003 Characterization of Greenbug (Homoptera: Aphididae) Resistance in Synthetic Hexaploid Wheats
Author Affiliations +
Abstract

Twelve greenbug (Schizaphis graminum (Rondani)) biotype E-resistant synthetic hexaploid wheats synthesized by crossing Triticum dicoccum Schrank. and Aegilops tauschii (Coss.) Schmal. were evaluated for the three known insect resistance categories, including antibiosis, antixenosis, and tolerance. Different methods were evaluated for calculating antibiosis and tolerance. Calculating intrinsic rate of population increase and measuring leaf chlorophyll content with a SPAD chlorophyll meter proved to be time- and labor-efficient for antibiosis and tolerance determination, respectively. The resistance in all synthetic hexaploids proved to be the result of a combination of antibiosis, antixenosis, and tolerance, which makes them valuable sources of greenbug resistance. To assist plant breeders in selecting the best germplasm for greenbug resistance, a plant resistance index was created that revealed differences among the synthetic hexaploid wheats.

J. Lage, B. Skovmand, and S. B. Andersen "Characterization of Greenbug (Homoptera: Aphididae) Resistance in Synthetic Hexaploid Wheats," Journal of Economic Entomology 96(6), 1922-1928, (1 December 2003). https://doi.org/10.1603/0022-0493-96.6.1922
Received: 24 May 2003; Accepted: 1 July 2003; Published: 1 December 2003
JOURNAL ARTICLE
7 PAGES

This article is only available to subscribers.
It is not available for individual sale.
+ SAVE TO MY LIBRARY

SHARE
ARTICLE IMPACT
RIGHTS & PERMISSIONS
Get copyright permission
Back to Top