Evaluation of Krymsk®5 (Vsl-2) and Krymsk®6 (Lc-52) as Rootstocks for Sweet Cherry 'Kordia'

Maas, F.M.; Balkhoven-Baart, J.M.T.; Steeg, P.A.H. van der

doi:10.17660/actahortic.2014.1058.66

Cited by 6 publications

(5 citation statements)

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“…These changes to whole-plant physiology suggest that responses of ungrafted rootstocks can provide a good indication of responses in grafted trees. Furthermore, research in the Netherlands found Kordia scions grafted to K6 rootstocks produced more fruit per tree than those grafted to K5, which suggests that greater carbon assimilation may be conferred by K6 rootstocks [27]. Carbon assimilation rates of K6 were also higher than those noted in the sweet cherry variety Black Star grafted to semi-dwarfing rootstock Gisela™ 6, again suggesting more vigorous responses from K6 compared to other dwarfing rootstocks [28].…”

Section: Discussionmentioning

confidence: 92%

Water Stress in Dwarfing Cherry Rootstocks: Increased Carbon Partitioning to Roots Facilitates Improved Tolerance of Drought

2021

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Cherry orchards are transitioning to high-density plantings and dwarfing rootstocks to maximize production, but the response of these rootstocks to drought stress is poorly characterized. We used a 16-container, automated lysimeter system to apply repeated water stress to ungrafted Krymsk® 5 and 6 rootstocks during two growing cycles. Drought stress was imposed by withholding irrigation until the daily transpiration rate of each tree was 25% and 30% of the unstressed rate during the first trial and second trial, respectively. After this point was reached, the root-zone water status was restored to field capacity. Whole-tree transpiration measurements were supplemented with leaf-level gas-exchange measurements. Krymsk® 6 had a higher rate of photosynthesis, more vigorous vegetative growth and less conservative stomatal regulation during incipient drought than Krymsk® 5. At harvest, carbon partitioning to roots was greater in Krymsk® 6 than Krymsk® 5. The conservative rate of water use in Krymsk® 5 could be a function of greater stomatal control or reduced carbon partitioning to roots, which thereby limited transpiration rates. Further studies are needed to confirm that these results are applicable to trees grown using a common grafted scion under field conditions.

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Section: Discussionmentioning

confidence: 92%

Water Stress in Dwarfing Cherry Rootstocks: Increased Carbon Partitioning to Roots Facilitates Improved Tolerance of Drought

2021

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“…Krymsk 6 [P. cerasus × (P. cerasus × P. maackii)] has been selected as a promising rootstock for cherries (Eremin 2005;Maas et al 2014). In the present work, it showed the lowest uptake capacity for K, Mg, Fe, and Cu, although 'Šumadinka' showed positive cropping results on this rootstock, satisfying health and good tree growth until now (data not shown).…”

Section: Leaf Nutrients Composition At 120 Dafbmentioning

confidence: 99%

Regulation of Yield, Fruit Size, and Leaf Mineral Nutrients of the ‘Šumadinka’ Sour Cherry Cultivar with Help of Rootstocks

Milošević

Sánchez²,

Milošević³

et al. 2023

J Plant Growth Regul

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“…Krymsk 5 ® (Prunus fruticosa × Prunus lannesiana) is a semi-dwarf cherry rootstock suitable for heavy soils and both hot and cold climates [1,2]. Micropropagation allows the rapid clonal propagation of plant species.…”

Section: Introductionmentioning

confidence: 99%

In Vitro Propagation of Commercially Used Krymsk 5® (Prunus fruticosa × Prunus lannesiana) Cherry Rootstock: Impact of Sugar Types and pH Levels

Tsafouros,

Roussos

2024

Agriculture

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In the present study, the effects of different types of sugars and cultivation medium pH levels on the micropropagation of Krymsk 5® cherry rootstock were investigated. During the proliferation stage, the effects of four sugars (sucrose, fructose, glucose, and sorbitol) both separately and in two combinations were studied, along with the effects of pre-adjusted pH (4.5, 5.0, 5.2, 5.5, 5.8, 6.0, 6.2, or 6.5) on shoot proliferation parameters, growth medium’s post-autoclaving and post-cultivation pH, and their relations. Similarly, during the rooting stage, the effects of four sugars (sucrose, glucose, fructose, or sorbitol) at three concentrations (1% w/w, 2% w/w, or 3% w/w) without any auxin inclusion were studied as well as the effects of two sugars (sucrose or fructose) at six pre-adjusted pH levels (4.8, 5.2, 5.8, 6.2, or 6.5), also in the absence of auxin, on rooting parameters. Explants cultivated in fructose-supplemented growth mediums exhibited superior proliferation performance, characterized by the highest values of shoots per explant, shoot length, and nodes per explant. Generally, the medium’s pH decreased after autoclaving, and proliferation performance was favored by low pH values (either pre-adjusted or post-autoclaving). As far as rooting is concerned, fructose inclusion induced a higher rooting percentage (88%) compared to sucrose. The highest rooting was obtained in fructose-supplemented rooting mediums at concentrations of 2% or 3% w/w (95% rooting in both cases), in the absence of auxins. Post-autoclaving pH in fructose-supplemented rooting mediums was lower and buffered in low pH levels than in sucrose-supplemented ones, and the rooting of explants in all pH combinations with fructose exceeded 75%. In addition, rooting was negatively correlated with the post-autoclaving pH. These findings underscore the significance of both the sugar type and the post-autoclaving pH of the medium in both proliferation and rooting stages, highlighting their possible physiological, biochemical, or hormonal effects. Additionally, rooting without the use of auxin, but with the correct choice of sugar, emerges with both financial and environmental benefits, whereas fructose could be potentially used as a buffering agent.

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Evaluation of Krymsk®5 (Vsl-2) and Krymsk®6 (Lc-52) as Rootstocks for Sweet Cherry 'Kordia'

Cited by 6 publications

References 0 publications

Water Stress in Dwarfing Cherry Rootstocks: Increased Carbon Partitioning to Roots Facilitates Improved Tolerance of Drought

Water Stress in Dwarfing Cherry Rootstocks: Increased Carbon Partitioning to Roots Facilitates Improved Tolerance of Drought

Regulation of Yield, Fruit Size, and Leaf Mineral Nutrients of the ‘Šumadinka’ Sour Cherry Cultivar with Help of Rootstocks

In Vitro Propagation of Commercially Used Krymsk 5® (Prunus fruticosa × Prunus lannesiana) Cherry Rootstock: Impact of Sugar Types and pH Levels

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