Factors affecting the survival of cucumber [Cucumis sativus] plants grafted on pumpkin plants by horizontal grafting at the hypocotyl level
1994
Oda, M. (National Research Inst. of Vegetables, Ornamental Plants and Tea, Ano, Mie (Japan)) | Tsuji, K. | Ichimura, K. | Sasaki, H.
Cucumber plants were grafted onto pumpkin plants through horizontal grafting, whereby the axes of the scion and rootstock are cut at right angles and the cut surfaces are spliced, to analyze to factors affecting the survival rate of the grafts. It was confirmed that the survival rate of the grafts obtained by horizontal grafting at the hypocotyl level was lower compared with cutting grafting used as a conventional grafting method. This low survival rate was ascribed to the removal of the cotyledons from the rootstock and the smaller number of vascular bundles coming into contact with the cut surfaces of the scion and rootstock at the hypocotyl. The survival rate was higher when the angle formed by the expanding directions of the cotyledons of the scion and rootstock was 90 degrees C compared with 0 degrees C, which tended to be associated with the increase in number of vascular bundles coming into contact with the cut surfaces of the scion and rootstock
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