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Hisayuki Kudo and Takeo Harada

genes, it was proposed that phloem sap contains bona fide small regulatory RNA ( Eckardt, 2004 ; Yoo et al., 2004 ). By using heterografting techniques with cucumber as scion and pumpkin as stock, Lucas's group at the University of California at Davis

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Haley Hibbert-Frey, John Frampton, Frank A. Blazich, Doug Hundley, and L. Eric Hinesley

grafted in March or April when stock plants are dormant, a busy season for Christmas tree growers. Efforts to identify alternative grafting dates have been unsuccessful ( Hibbert-Frey et al., 2010 ). Origin of scion material within the tree crown might

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Andrey Vega-Alfaro, Paul C. Bethke, and James Nienhuis

; Penella et al., 2017 ; Sabatino et al., 2018 ; Suchoff et al., 2019 ). In some cases, rootstocks provide scions an altered root architecture that reduces requirements for water and fertilizer inputs compared with nongrafted plants ( Colla et al., 2010

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Ben van Hooijdonk, David Woolley, Ian Warrington, and Stuart Tustin

Elucidating how dwarfing apple rootstocks modify scion architecture and the precise time after propagation when this first starts is essential to identify clearly those processes that are the first physiological causes of rootstock-induced scion

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Craig E. Kallsen and Dan E. Parfitt

Similar scion and rootstock growth rates produce strong graft unions in fruit and nut trees. A SRR close to one provides a strong graft union as well as a uniform exterior surface for trunk-shaking harvesters. ‘Kerman’, which has been the standard

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Ed Stover, Sharon Inch, Matthew L. Richardson, and David G. Hall

scion/rootstocks to gain inferences about possible HLB tolerance. Materials and Methods Although a replicated, full factorial of standards and putatively tolerant scions each on the same rootstock would have been ideal, when this research was started

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Rui Zhang, Fang-Ren Peng, Dong-Liang Le, Zhuang-Zhuang Liu, Hai-Yang He, You-Wang Liang, Peng-Peng Tan, Ming-Zhuo Hao, and Yong-Rong Li

Apr.) that were 2 to 3 mm (0.08 to 0.12 inch) in diameter. (B) Splitting the center of the epicotyl. (C) Sloping cut through the scion on both sides. (D) Fitting and inserting the scion. (E) The completed graft. (F) New graft in the container. (G) 45 d

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Simon A. Mng'omba, Elsa S. du Toit, Festus K. Akinnifesi, and Helena M. Venter

67% at 33 months ( Akinnifesi et al., 2007 ). Therefore, early evaluation of scion/stock combinations is important for successful orchard establishment and productivity. However, there is no scientific research devoted to graft incompatibility in U

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Sahar Dabirian, Debra Inglis, and Carol A. Miles

were the scion end of the stem, the graft union, the rootstock stem portion, and the rootstock crown. For nongrafted plants, the stem was visually divided into four segments that matched these four parts. Fruit yield and quality. Harvest occurred on 5

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Michele R. Warmund, Billy G. Cumbie, and Mark V. Coggeshall

limited the availability of trees for commercial production in the United States ( Warmund, 2011 ; Weber and MacDaniels, 1969 ). Early researchers speculated that graft failure was caused by scion/rootstock incompatibility with restricted flow of