The objectionable weed in Oat is

Solution (By Examveda Team)

The objectionable weed in Oat is Avena fatua.
Objectionable weed is also known as Satellite weed. Objectionable weed: A noxious weed, whose seeds are difficult to separate, once mixed with crop seeds. The weeds that mature at the same time & height as a host plant have a similar size and shape as the crop seeds.
Wild oat (Avena fatua) is common in spring wheat (Triticum aestivum.