Embryo Rescue

"Breeding Seedless Grapes in South Africa by means of Embryo Rescue"
by P. Burger, C.A. Gerber, A. Gerber, P.J.L. Ellis
ISHS Acta Horticulturae
Acta Hort. (ISHS) 603:565-569

ActaHort offers for-pay access to their enormous body of technical horticultural publications. However, the Abstracts are posted publicly, and they are excellent. ActaHort is a trove.