(1) Maturation of anther (stamen) and stigma (carpel) at one-of-a-kind times is called dichogamy.
(2) Dichogamy is of two sorts, viz, protandry and protogyny.
(3) Maturity of anthers earlier than that of gynoecium is protandry and adulthood of carpel before adulthood of pollen grains is protogyny.
(4) As this bureaucracy barrier for self-pollination, dichogamy favors past pollination.
