Photosynthesis-inhibitor herbicides can be absorbed by roots when soil-applied or above-ground tissues when foliar-applied, but move only upward in the plant xylem.
(Photosynthesis-inhibitor herbicides; can be absorbed; by roots) (soil-applied or above-ground tissues when foliar-applied; move; only upward; L:in the plant xylem)
Photosynthesis-inhibitor herbicides soil-applied or above-ground tissues when foliar-applied
can be absorbed move
by roots
only upward L:in the plant xylem