Journal
AGRONOMY-BASEL
Volume 12, Issue 8, Pages -Publisher
MDPI
DOI: 10.3390/agronomy12081981
Keywords
grafting; graft compatibility; graft junction; rootstock; scion; tree; woody plants
Categories
Funding
- National Natural Science Foundation of China [31925034]
- key project of Hubei provincial Natural Science Foundation [2021CFA017]
- Japan Society for the Promotion of Science [20H03273, 21H00368, 21H05657]
- Japan Science and Technology Agency [JPMJTR194G]
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Plant grafting is an ancient technique used for efficient propagation and modification of plant traits. Despite its wide application, the cause behind compatible graft establishment is not fully understood. This review discusses the factors involved in successful graft establishment and highlights the challenges in understanding graft incompatibility on fruit trees.
Plant grafting is a maneuver humans learned from nature and has been practiced since ancient times. The technique has long been applied for efficient propagation as well as for the modification of the traits of interest, such as stress tolerance, tree size, and fruit quality. Since grafting can enhance the environmental tolerance and disease resistance of a plant, its techniques are now used not only in tree species but also among vegetables. Despite such wide advantages of grafting, however, the potential cause behind a compatible graft establishment (scion-rootstock connection) is yet to be fully understood. As compared to succulent herbaceous plants, woody plants often take a longer time for the graft-take and the plants may exhibit incompatible/unsuccessful graft-establishment symptoms within a period ranging from months to years. In this review, we discuss factors involved in a successful/compatible graft establishment along with bottlenecks of our understanding and future perspectives in a simplified manner- particularly focusing on incompatible graft formation on fruit trees based on earlier studies in the field.
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