Perennial Wheat Germ Plasm Lines Resistant to Eyespot, Cephalosporium Stripe, and Wheat Streak Mosaic

Plant Disease
C M CoxS S Jones

Abstract

A perennial wheat cropping system on the Palouse Prairie of eastern Washington may provide an alternative to the Federal Conservation Reserve Program and reduce soil erosion while providing a harvestable crop for growers. Twenty-four perennial wheat germ plasm lines resulting from crosses between wheat and wheatgrass were evaluated under controlled environment conditions for resistance to Wheat streak mosaic virus (WSMV), Cephalosporium gramineum, and Tapesia yallundae (anamorph Pseudocercosporella herpotrichoides var. herpotrichoides). Perennial wheat lines SS452, SS103, SS237, MT-2, and PI 550713 were resistant to all three pathogens. Eight lines (33%) were resistant to WSMV at 21°C and 25°C; AT3425 was resistant to WSMV at 21°C but not at 25°C. Thirteen lines (54%) were highly to moderately resistant to C. gramineum. Thirteen lines (54%) were resistant to T. yallundae in each experiment, but the reactions of four lines differed between experiments. The wheatgrasses Thinopyrum intermedium (PI 264770) and Thinopyrum ponticum (PI 206624) are reported as new sources of resistance to T. yallundae. Perennial wheat must have resistance to these diseases in order to be feasible as a crop in the Pacific Northwest.

References

Jan 1, 1994·Physical Review C: Nuclear Physics·O HashimotoY W Xu
Jan 1, 1995·Annual Review of Phytopathology·S S JonesR E Allan

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Citations

Sep 14, 2012·Phytopathology·Megan D Robinson, Timothy D Murray
Jun 10, 2011·Journal of Biosciences·Frank M DuganKevin McCluskey
Nov 30, 2014·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·M Dolores VazquezChristopher C Mundt
Aug 3, 2005·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·H J LiT D Murray

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