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| Identification of Physiological Races and Disease Resistance of Phytophtora infestans on Tomato in Partical Liaoning Province |
| Zhang Zijun,Zou Qingdao,Guan Tianshu,Jiang Xiaoyan,Li Haitao |
| Vegetable Research Institute; Liaoning Academy of Agricultural Sciences; Shenyang 110161; Plant Protection Institute; Liaoning Academy of Agricultural Sciences |
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Abstract Five tomato lines,TS19(ph+),TS33(ph-1),W.Va 700(ph-1,2),L3708(ph-3,4)and LA1033(ph-5),were used as differential hosts to identify the physiological races of six Phytophtora infestans strains collected from Shenyang,Xinmin and Xiuyan of Liaoning province.Three races of T0,T1 and T1,2 were found out.Two breeding lines of CLN2037G and CLN2037H were resistant to race T1,2.Eight breeding lines and five varieties planted in Liaoning province were all susceptible to physiological race T1,2.
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Received: 06 February 2007
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