Author
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Porter, David |
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Submitted to: Oklahoma Agriculture Experiment Station Departmental Publication
Publication Type: Experiment Station Publication Acceptance Date: 1/1/2002 Publication Date: 2/1/2002 Citation: Porter, D.R. 2002. Aphid resistance breeding. In: Partners in Progress. Wheat Research at OSU 2000-2001. Oklahoma Agricultural Experiment Station Report. P-987:13. 2002. Interpretive Summary: Technical Abstract: This year saw continuing work on developing new wheat lines for Oklahoma with resistance to greenbug, Russian wheat aphid, and bird cherry-oat aphid. Ongoing efforts have identified several very promising new wheat breeding line with high levels of resistance to the Russian wheat aphid. These lines are undergoing further testing and selection in field trials as spart of the bigger wheat-breeding program. Refinement of a technique to identify wheat plants with resistance to the bird cherry oat aphid is ongoing. Testing wheat seedlings with high levels of bird cherry-oat aphids under greenhouse and growth chamber conditions results in severe plant damage. Aphid feeding stunts leaf and root growth. We are examining different types of wheats collected from the U.S. and abroad to find wheat seedlings that are better able to withstand the damage from bird cherry-oat aphid feeding. Resistant wheats will be further analyzed and then included din the wheat-breeding program. Much work has been done, but more is needed. We are striving to get the best sources of resistance to aphids into adapted wheat breeding lines for use in developing new Oklahoma wheats. We are also testing and selecting for aphid resistance as these new lines make their way through the breeding program. |
