小偃6号既不抗蚜虫，又不抗小麦黄矮病。

Xiaoyan 6 did not resist wheat aphids and wheat yellow dwarf.

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小麦黄矮病是中国小麦产区的重要病害之一。

Wheat yellow dwarf disease is a major disease in China.

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小麦黄矮病是由大麦黄矮病毒(BYDV)引起的小麦主要病害之一。

Wheat yellow dwarf, one of the major diseases in wheat was caused by Barley yellow dwarf Virus (BYDV).

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