Table I.

The ovule sample collected on the basis of stages of flowers and embryo sacs

Sample DivisionFloral StageaEmbryo Sac Stageb
Early staged ovuleLate 11FG1 (one nucleate)
Early 12FG2 (early two nucleate)
FG3 (late two nucleate)
Mid 12FG4 (four nucleate)
Late staged ovuleLate 12FG5 (eight nucleate)
13FG6 (seven celled)
FG7 (four celled)
  • a Floral stages are described by Bowman (1994).

  • b Embryo sac stages are summarized from Christensen et al. (1997).