Three techniques of grafting were tested at the kola, in order to retain to it (them) more efficacious for the production of vegetable material in sufficient quantity. They are the graftings in side and final slit, and that in escutcheon. These grafts were preserved in two environments at the contrasted characteristics: talon and tunnel to evaluate the effects of them. The analyses of the data revealed that mortalities are more significant during the first two weeks but, tend to be stabilized during the third. The graft in final slit, preserved under tunnel, showed a superiority expressed through the weakest death rate after three weeks compared to the shield-grafts which resisted less under the same conditions. Conversely, the shield-grafts behaved better under greenhouse than the grafts in slit. These grafts in slit final and maintained under tunnel, were revealed best adapted to the multiplication of the kola. The results of this study suggest possibilities of production of vegetable material in mass according to tested techniques.