Grafting is a commonly used practice in horticulture, mainly employed to manage plant growth, increase fruit yield and quality, and improve plant resistance to biotic and abiotic challenges. Indeed, the use of the Gisela 6 rootstock, which is recognised for its greater dwarfing characteristics than commonly used rootstocks in China, facilitates the achievement of higher crop yields.
This can be attributed to the greater abundance of flower buds, which consequently results in a higher fruit load. Researchers at the Beijing Academy of Agriculture and Forestry Sciences (China) analysed gene expression as a function of the rootstock adopted.
Xuwei Duan
For this study, the Tieton/Landing 2 and Tieton/Gisela 6 combinations were used by analysing 4-year-old plants. Thanks to this study, the PaMYBF gene was identified and at the same time it was noted that the expression of PaMYBF was significantly higher in the phloem tissue of the scion when grafted onto the Gisela 6 rootstock.
Preliminary results confirmed the correlation between the expression of this particular gene and the flowering process. Transcriptome analysis revealed considerable variations in the expression patterns of hormone-associated genes in the various rootstock and scion combinations.
In this study, it was also found that the expression of the PaMYBF gene can be increased by the exogenous application of phytohormones such as jasmonates. The repercussions of this increased gene expression are expected to have a favourable effect on the number of flowering buds, but targeted studies need to be continued to better understand this phenomenon.
Source: Xuwei Duan, Rootstock induced PaMYBF participating floral bud formation in sweet cherry, IX International Cherry Simposium, https://2021.cherries.org.cn/replayEn.html
Images: IX International Cherry Simposium
Melissa Venturi
University of Bologna (IT)
05 Jan 2026
On 24 December, a local fruit grower explained that this year the trees were subjected to forced dormancy and heating earlier than usual, resulting in the cherries ripening about 10 days earlier than in previous years.
11 Jul 2024
Currently, the drought continues in some areas of northern China, including the main producing province, Shandong. However, according to growers in Yantai, the adverse weather will only affect late-ripening cherries.
18 Aug 2026
A study on 0900 Ziraat cherries evaluates indirect solar drying under different ventilation settings. Using one fan shortens drying time, preserves good color quality and provides the best technological balance between energy consumption, efficiency and sustainability.
18 Aug 2026
Mechanical harvesting of sour cherries is seeing very strong demand, driven by labor shortages. Stable service rates, fully booked schedules, storms, high temperatures and fears of an early halt to fruit purchases by processors are shaping the final stage of the season.
