当地的农民对小麦计划怀有敌意，因为1939年至1941年间小麦由于茎锈病而严重减产。

Native farmers were hostile towards the wheat programme because of serious crop losses from 1939 to 1941 due to stem rust.

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茎锈病会使枝干衰弱。

Stem-rusts weaken branches and stems.

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他惊讶地发现试验株的茎上不仅有条锈病引起的棕色条纹，同时还有茎锈病可怕的脓疱。

He was alarmed to find stems scarred not by the yellow streaks of stripe rust but the angry pustules of stem rust.

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