Vol. 45
Title: Grafting on Roots
Author: Joerg Leiss
pp: 469-471
Abstract:
INTRODUCTION
Root pieces have a number of advantages over regular understocks. They are among others things, readily available when harvesting nursery stock, can be dug from original plants, are compatible with plants from which they originate, and prevent abnormal growth habits that can occur with seedlings. The disadvantage is, root pieces that can be used as root cuttings will generally produce shoots if used, but are the only choice for grafting of taxa that can not be produced any other way.
Root pieces are harvested when plants have ripened sufficiently so that they could be dug bare-root. After harvesting, roots should be packed in moisture-retentive material and stored at 0C. They could be cut into pieces at this time to facilitate accurate counts. At no time should roots be permitted to dry.
Size of root pieces optimally should be from 6 to 15 mm thick, their length can be between 10 and 20 cm depending on the pot size if they need to be potted. Branched roots are best. Roots
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