  We consider almost quasi-Yamabe solitons in Riemannian manifolds, derive a
Bochner-type formula in the gradient case and prove that under certain
assumptions, the manifold is of constant scalar curvature. We also provide
necessary and sufficient conditions for a gradient almost quasi-Yamabe soliton
on the base manifold to induce a gradient almost quasi-Yamabe soliton on the
warped product manifold.
