Yes, there are different ways of propagating trees. Cutting of some trees grow. In case of others, we can go for grafting, gooties, some can be reproduced even through leaves.

Yes some trees are planted using the branches only

Yes possible I know Drumstick tree stems can be planted with its top covered in weeks you get starts sprouting on sides;in 3 months it grows green

Yes some plant stem produce roots

Yes, possible. Even for rose, stems without roots r used.

Yes you can and almost any tree or scrub. Some fruit and nut trees will go to their roots if they where grafted the same way that if you plant a seed from say an orange and grow a tree it may or may not ever bear fruit and if it dose it's not the same and the fruit you got the seed from. I hope that made sense. I have 3 fig trees on my back patio that I rooted from cuttings and they are about 3 ft high now and starting to bear fruit. Most trees and house plants can be rooted from a cutting from that plant. Crate mertals. begonias. gardenias.and all ivy plants are easy to root. Take some cuttings about the size of a pencil in diameter. Make them about 12 to 15 inches long. You need some good soil I use a garden mix rather than a potting mix but if you have potting mix its OK there's not that much difference in them. Green light makes a rooting hormone that is a white powder this is the one I use. Get you some pots and fill them with soil a 4 to 6 inch ones and do about at least 6 or 7 o ...more

Kahi na kahi usaki roots hogi hi...