块茎形成 tuber formation ; tuberization

块茎形状 tuber shape

纺锤形块茎病 potatospindletuberdisease ; PSTD

马铃薯纺锤形块茎病 potata spindle tuber disease

在马铃薯纺锤形块茎病 potatospindletuberdisease

块茎畸形 Abnormal tuber