Agricultural biotechnology sometimes sounds as resemble to plant biotechnology even at graduation and postgraduation level. But, I think there is a thin layer difference between them due to specific intentions as well as perspectives. Agricultural Biotechnology I think merely deals with the study on the internal architecture of a particular crop system and suitable approaches for structural/biochemical/physiological modifications (wherever needed) at molecular level just to promote better farming practices for a better outcome.
What do you think about it??