Vavilovian mimicry 瓦维洛夫拟态
(重定向自Secondary crop)
Vavilovian mimicry (also crop mimicry or weed mimicry) is a form of mimicry in plants where a weed comes to share one or more characteristics with a domesticated plant through generations of artificial selection. It is named after Nikolai Vavilov, a prominent Russian plant geneticist who identified the centres of origin of cultivated plants. Selection against the weed may occur by killing a young or adult weed, separating its seeds from those of the crop (winnowing), or both. This has been done manually since Neolithic times, and in more recent years by agricultural machinery.