Cắt cành chéo một góc 45 độ bên trên bộ lá đầu tiên. Cắm các cành hồng vào nước. Cắt bỏ hết lá, ngoại trừ các lá trên cùng. Nhúng đầu cắt của cành hồng vào bột hoóc môn kích thích ra rễ.

I'm interested in that, but I only have a few mins. Can you give me at most the first 500 characters of a detailed explanation in English about that?
Once you’ve selected healthy rose stems, you’ll want to cut them so that they’re 6–8 inches (15–20 cm) long. Use pruning shears or a sharp knife to cut right above the first set of leaves at a 45 degree angle.  Try to take your rose cuttings in the morning so that they’re hydrated.  Clean your tools well with rubbing alcohol before you use them. It’s very important for the rose cuttings to stay hydrated so that they don’t dry out before you plant them. Immediately after you take the rose cutting