The Infection of Wheat Powdery Mildew to Elymus L.Introduced from Other Coutries

doi:10.3321/j.issn:1000-7091.1998.01.010

Abstract

Abstract: The resistance of eighteen Elymus species,grown in China and introduced from USA,Canada,Japan,Czech,etc.to wheat powdery mildew was tested with a mixture of 11C hinese mildew races in greenhouse. The result showed that 15 species were successfully in-oculated by the mildew pathog en. The mildew spores produced on 14 diseased Elymus species plants were collected and inoculated back to the wheat plants. The ino culation was also successful. The infection indicated that Elymus belonged to the wheat mildew host category in China.T hey have the potential to transmit powdery mildew pathogens.The possibility of the Elymus species transmitting new races in contiguous areas between countries was discussed.

Key words: Wheat powdery mildew, Elymus L, Infection

CLC Number:

S435.12

Sheng Baoqin, Duan Xiayu, Zhou Yilin, Xiang Qijun. The Infection of Wheat Powdery Mildew to Elymus L.Introduced from Other Coutries[J]. ACTA AGRICULTURAE BOREALI-SINICA, 1998, 13(1): 53-56. doi: 10.3321/j.issn:1000-7091.1998.01.010.

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