. In plant cytokinesis, wall formation starts in/by
(1) Centrifugal manner
(2) Centripetal manner
(3) Phragmoplasts and ER vacuoles
(4) More than one option is correct
In plant cytokinesis, cell plate grows from centre towards lateral walls. It is thus described as centrifugal manner of cell plate formation. Hence, option (1) is correct.