Embryogenesis and fruit formation.....

 A Fruit is a mature ovary which contain seed or mature ovule . 
In previous posts we discussed that ovule contain embryo sac which is the site of fertilisation and zygote and endosperm are formed here only . 

Embryo formation occurs when zygote a single celled structure divides mitotically into multicellular mass pre embryo which further divide and differentiate into embryo proper having one or two cotyledon , one plumule or future shoot and one radicle or future root . Endosperm provide nutrition to developing embryo till it is fully established to be supported by cotyledons and then roots .

Signal form mature embryo in seed are sent to ovary which also differentiate into fruit having characteristic color, texture , smell and taste .

Some fruits are formed without fertilisation they are called parthenocarpic fruits . They are seedless fruits . Parthenocarpy may be induced by hormones in plants . 

If a fruit is formed from only ovarian part it is called true fruit . Eg. Mango 🥭

If fruit formation involves other parts like thalamus then it is called false fruit 🍓 eg. Strawberry and apple 🍎.

Multiple fruits are those who develop from a given inflorescence eg..mulberry , pineapple . In a inflorescence many flower or florets are present borne on a stalk called peduncle .

In case of aggregate fruit several free  carpel of pistil are involved in fruit formation . So single flower is involved here ..eg. blackberry , raspberry,  lemon.

Some technical names have been used for fruits :

1. Pome - apple 

2. Berry - grape 

3. Drupe - peaches , plum 

4. Hesperidium - orange , lemon 

5. Pepo- water -melon