| Breeding resistant wheat vanities is a important link of integrated pest management (IPM) on wheat diseases and insect, In order to illustrate wheat aphids, which a serious pest insect group of wheat in worldwide wheat growing area, response on different resistance wheat varieties (source). The biological performance of 3 species wheat aphids (Sitobion avenae Fab, Rhopalosiphum padi Linnaeus, Schizaphis graminum (Rondani)) on 10 winter wheat varieties (source): 98-10-32, 98-10-35, 98-10-30, 186Tm, Xiaoyan-22 (come from Chinese), Astron, Ww2730, Batis, Xanthos (come from German), Amigo (come from American), and the biological performance and transfer index of these 3 species aphids transfer to among 3 winter wheat varieties: Ww2730,Xiaoyan-22,Batis had been studying used the way of single tube plant one wheat seedling and breeding one aphid in laboratory conditions, 3 German resistant wheat varieties resistance to aphids(S.avenae is dominant group) in field also had been examined in Guanzhong area, Shannxi province ,R.P China. Used electrical penetration graph (EPG) technique, the resistance aphid parts of 2 species aphids: S.avenae and R. padi, in 3 wheat varieties resistance aphids also had been ascertained. The result show as follows:There are 98-10-32, 98-10-35, Xiaoyan -22, Astron, Xanthos, Ww2730, 98-10-30 and Amigo that best resistant wheat varieties (source) to S. avenae, they better than Batis and 186Tm in 10 wheat varieties, Batis has worst resistance to S. avenae;There are Xiaoyan-22, Astron and Ww2730 that better resistance to R. padi, wheat varieties Batis, 98-10-30, 186Tm are weak resistance to R. padi, other wheat varieties' resistance to R. padi in the middle of 10 wheat varieties;Amigo has the best resistance to S. Graminum, Batis is better, 98-10-32, 98-10-35, Xanthos is good, other 5 varieties is weak, and the difference does not show significance.Synthesize to show: Amigo,98-10-32,98-10-35 and Xanthos have good resistance to all 3 species aphids, they are level resistance varieties. Xiaoyan-22,Astron,Ww2730 have good resistance to S. Avenae and R. padi, but have weak resistance to S. Graminum, 98-0-30 has good resistance to S. Avenae, but has weak resistance to R. padi and S. Graminum, Batis has good resistance to S. Graminum, but has weak resistance to S. Avenae and R. padi.The tendency of S.avenae adaptability rise in the being transferred variety after breeding 4-6 generation on other or same resistant wheat variety, except transferred from Xiaoyan-22 to Batis, it is show adaptability rise in the MRGR, development days and fecundity, but on the contrary, weight different showed adaptability drop.The tendency of R. padi adaptability drop in the resistance variety after breeding 5-7 generation and transfers on same resistant wheat variety, It is just like this situation what R. padi had been transfered from a better resistant wheat variety to another resistant wheat variety, which resistance level significance different with first wheat variety. But this tendency is unconspicuous when R. padi had been transferred between two wheat varieties that be on an equality with resistance level and had been transferred from wheat variety resistance level weaker to the variety resistance level significant high it.The tendency of S. Graminum adaptability rises in the resistance variety after breeding 4-6 generation on the resistant wheat variety and then transferred each other.Variety resistance to aphid on 3 wheat varieties, which come from German had been evaluated in field of China, it's showed that Amigo, Astron and Xanthos have the best resistance in our country field, the aphid population on this varieties less than Xiaoyan-22 significantly. But the time of reaping of these Astron, Xanthos and Batis are late 1 mouth than other wheat varieties that widespread had been planting in our country, so they could use as resistant source in our country.EPG recorded feeding behave and resistance parts ascertained showed:The resistance parts of Xiaoyan-22 resistance to S.avenae o...
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