How Do Trees Grow from Seed and take Root?

All seeds have an embryo with a radicle , plumule and cotyledon or cotyledons and the process of germination is similar in small plants and trees .

In the picture below you will see a mango fruit , the hard core or pit and the seed in side the core or pit  = click on the link to see=

http://waynesword.palomar.edu/images/mango4b.jpg

http://www.caribbeanedu.com/images/kewl/seed.gif

In the picture below you can see the hard core or pit and the seed separate from each other - click on it =

http://farm1.static.flickr.com/52/136865017_5be907279c.jpg?v=0
In the picture below you can see white radicle ( for root ) projecting out of the seed that is still in side the core or pit .

http://farm1.static.flickr.com/145/360428084_2bee9f9fcb.jpg?v=0

Finally the plumule emerges out and forms the seedling .

http://farm1.static.flickr.com/15/22309112_112df74058.jpg

And finally this -
http://www.mutopiaproject.org/%7Epraetzel/personal/Mango-1.jpg

What is true for mango is true for other trees as well  !!!

Now for Avacado tree seed germination ==

See the fruit cut open and Avacado seed exposed =
http://www.kriyayoga.com/photography/photo_gallery/d/21334-2/avocado_fruit_cut_open_with_seed-dsc08344.jpg

Avacado seed parts labeled ==
http://upload.wikimedia.org/wikipedia/commons/thumb/5/5b/Avocado_seed_diagram-fr.svg/720px-Avocado_seed_diagram-fr.svg.png

Avacado seedling and then sapling ==
http://cdn-www.answerbag.com/images/answers/169895/543981/tmb_growing_avocado.jpg

http://3.bp.blogspot.com/_WPWU67xXuY8/SEVDE3wE42I/AAAAAAAAAiw/dMdpWMbmzvs/s320/growing_avocado.jpg

http://media.photobucket.com/image/avocado%20sapling/mofugly13/IMG_0004.jpg

Thank you !!