Isolated nucleic acid fragments and recombinant constructs comprising such fragments for altering embryoendosperm size during seed development are disclosed along with a method of controlling embryoendosperm size during seed development in plants. 08% or less, a which is an Mn segregation degree is 1. A chiral dopant which imparts rotation in a direction opposite to a rotational direction of liquid crystal induced by an electric field applied between the strip portions and the second electrode is added to the liquid crystal layer, and the first electrode further includes bent portions which are bent from the strip portions.