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item Baker, Cheryl
item Burd, John
item Greenstone, Matthew
item Kindler, Dean - Dean
item Mornhinweg, Dolores - Do
item Porter, David
item Shufran, Kevin
item Webster, James

Submitted to: Plant Resistance to Insects Newsletter
Publication Type: Other
Publication Acceptance Date: 1/1/2000
Publication Date: 3/1/2000
Citation: Baker, C.A., Burd, J.D., Greenstone, M.H., Kindler, D., Mornhinweg, D.W., Porter, D.R., Shufran, K.A., Webster, J.A. 2000. Oklahoma - Plant Science Research Laboratory, USDA-ARS. Plant Resistance to Insects Newsletter. 26:7-11. Available:

Interpretive Summary: Information previously presented in another media; no new research information provided; no interpretive summary required.

Technical Abstract: Efforts are ongoing to develop Russian wheat aphid (RWA) resistant wheat germplasm. Advanced wheat lines derived from 13 different RWA resistance sources were planted for seed increase and evaluation in preparation for germplasm release; these include 45 hard white winter lines, 43 hard red winter lines, 48 hard red spring lines, 47 soft white spring lines, and 51 hard white spring lines. Topcrossed seed was screened for resistance to RWA, and resistant plants were transplanted to the greenhouse for increase and progeny testing. Homozygous RWA-resistant lines will be selected for germplasm release. Field evaluations of winter RWA-resistant wheat lines continue to be made in Stillwater and in irrigated and dryland field tests in Goodwell, OK. An evaluation of 28 barley lines was done in preliminary yield trials in the field in Aberdeen, ID. These lines were grown at two locations in Idaho, with the potential for release of adapted germplasm lines or further testing and cultivar release.