Question

Explain any two ways in which serds develop without fertlisation?

Answer 1

this will help you friend - The two ways by which embryo development occurs in plants without fertilisation are parthenogenesis and apomixis. However, development of seed without fertilisation is called apomixis.
The apomixis may take place in following two ways:
(1)Gametophytic apomixis
In this case the unfertilised egg cell gives rise to embryo without fertilisation.
(2)Sporophytic apomixis
In this case an embryo is formed directly from nucellus or integument tissue of ovule.

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Answer 2

There are two ways by which seeds develop without fertilization. These are:

i) Apomixis : It is a mechanism to produce seeds without fertilization. e.g grass
It is a form of asexual reproduction that copies sexual reproduction. There are many modes by which this types of seeds are produced they are embryony, adventive etc.
ii) Parthenocarpy : The development of seed without prior fertilization. This occurs when the ovary of a flower develops into a fruit without fertilization. They are seedless fruit. E.g. Banana ,