POLLINATION IS THE TRANSFER OF POLLEN (which contains the male sex cells) from an anther (part of male reproductive organ).This process precedes fertilization . .Pollination may occur within the same flower (self pollination), or between flowers of separate plants of same species (cross- pollination).In most plants , pollination is carried out either by insects or by the wind .Less commonly ,birds,bats,or water are the agents of pollination .
Insect -pollinated flowers are typically brightly coloured , scented , and produce nectar , on which insect feed .Such flowers also lend to have patterns that are visible only in ultraviolet light, which many insect can see but humans cannot.These features attract insects , which become covered with the sticky or hooked pollen grains .When they visit one flower, and transfer the pollen to the next flower they visit.
Wind - pollinated flowers are generally small, relatively inconspicuous , and unscented .They produce large quantities of light pollen grains that are easily blown by the wind to other flowers.
Insect -pollinated flowers are typically brightly coloured , scented , and produce nectar , on which insect feed .Such flowers also lend to have patterns that are visible only in ultraviolet light, which many insect can see but humans cannot.These features attract insects , which become covered with the sticky or hooked pollen grains .When they visit one flower, and transfer the pollen to the next flower they visit.
Wind - pollinated flowers are generally small, relatively inconspicuous , and unscented .They produce large quantities of light pollen grains that are easily blown by the wind to other flowers.
Comments
Post a Comment