“…Existing research report on the combined effect of MPs and heavy metals is restricted to seedling growth, i.e., after the germination occurred, and not on the germination process itself [ 21 ]. Moreover, numerous research works have explored the individual and synergic effects of MPs and heavy metals on plants and reported different effects particularly after the germination occurred [ 30 , 31 ]. Most of the procedures employed in previous works are invasive and sample preparation is time-consuming.…”