Can i grow stem cuttings from budded rose plants?
I confess to being confused by your question. Do you mean you have a grafted rose and want to take a stem cutting? You can do this but the plant may not grow at the same rate as the original. Grafting is done to insure a vigorous root system. Some people think that nowadays it is done to get the rose to grow faster (already developed root system) so plants can get to market more quickly (cheaper). So give it a try but expect the new plant to grow more slowly. The first year after putting out, the rose will likely have little top growth while it focuses on developing root mass. Here is an article on stem cuttings: https://www.gardeningknowhow.com/ornamental/flowers/roses/roses-from-cuttings.htm