porogamy

From Wiktionary, the free dictionary
Jump to navigation Jump to search

English[edit]

Etymology[edit]

poro- +‎ -gamy

Noun[edit]

porogamy (uncountable)

  1. (botany) The property of having the pollen tube in a seed plant enter the ovule by way of the micropyle.
    • 1898, Science, page 918:
      The subject of Chalazogamy in Casuarina was discussed somewhat in detail, the speaker taking exception to Nawaschin's theory that Chalazogamy is a primitive type of fecundation from which porogamy has been developed.
    • 1973, Parameswaran Krishnan Kutty Nair, Rajendra Kumar Grover, Thomas Meprethu Varghese, Glimpses in Plant Research - Volume 1, page 128:
      No statistical records are presently available about the plants showing porogamy, chalazogamy or mesogamy, in angiosperms.
    • 1996, Jules Janick, James N. Moore, Fruit Breeding, Nuts, →ISBN, page 208:
      The pollen tube may enter the ovule either via the chalaza (chalazogamy) (Billings 1903) or via the micropyle (porogamy) (Woodroof 1928).