Define the following terms
(a) Chalazogamy
(b) Porogamy
(c) Mesogamy
Answers
Answered by
115
(a) Chalazogamy:- In this process the pollen tube enters into the ovule through the chalaza. This method was proposed by in Casuarina in 1891 by Treub. Example:- Betula and Juglans (walnut).
(b) Porogamy:- In this method pollen tube comes into the one through the micropyle directly. It is found in
most of angiosperms i.e. Capsella.
(c) Mesogamy:- In this type of methods, first pollen tube enters into the ovule either through integuments like Cucurbita or even through the funiculusles, Pistacia and Populus.
Similar questions