clonal selection
acref-9780198705383-e-0782-audio-0782.mp4
acref-9780198705383-e-0782-audio-0782.mp4
acref-9780198705383-e-0782-audio-0782.mp4
acref-9780198705383-e-0782-audio-0782.mp4
clonal selection, one of the two principal means of improving a vine variety (the other being the elimination of virus…