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agamospermy การใช้

ประโยคมือถือ
  • Although agamospermy could theoretically occur in gymnosperms, it appears to be absent in that group.
  • It is sometimes used in a restrictive sense to refer to types of agamospermy in which the endosperm is fertilized but the embryo is not ( see Pseudogamous apomixis, below ).
  • In flowering plants, the term " apomixis " is commonly used in a restricted sense to mean "'agamospermy "', i . e . clonal reproduction through seeds.
  • Agamospermy occurs mainly in two forms : In " gametophytic apomixis ", the embryo arises from an unfertilized egg cell ( i . e . by parthenogenesis ) in a gametophyte that was produced from a cell that did not complete meiosis.