Enhanced Graft-take Ratio and Quality of Grafted Tomato Seedlings by Controlling Temperature and Humidity Conditions

Vu, Ngoc-Thang; Zhang, Chenghao; Xu, Zhihao; Kim, Youngshik; Kang, Ho-Min; Kim, Il-Soep

doi:10.12791/ksbec.2013.22.2.146

Cited by 15 publications

(12 citation statements)

References 5 publications

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“…In line with a previous study (Vu et al, 2013), our results show that grafting success rates decreased at high temperatures. These results highlight the need to keep grafted plants at low temperatures (i.e., 15 to 20°C) during the healing and recovery periods.…”

Section: Discussionsupporting

confidence: 93%

“…Guidelines on the optimum temperature range for tomato grafting vary considerably, depending on the authors, from 16 to 21°C (Kleinhenz et al, 2018) to 21 to 27°C (Rosskopf and Pisani, 2017) to 25 to 32°C (Black et al, 2003). An extensive study revealed that a constant temperature of 23°C would appear to be the optimum for tomato grafting, and indicated that a temperature increase from 23 to 26°C decreased the grafting success rate by 13% to 26%, depending on the rootstock (Vu et al, 2013). Differences in grafting success rates among rootstocks were explained previously by discontinuities in the vascular bundles at the graft union (Kawaguchi et al, 2008).…”

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confidence: 99%

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Impacts of Temperature and Rootstocks on Tomato Grafting Success Rates

Nordey¹,

Shem²,

Huat³

2020

horts

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Numerous studies have highlighted the merits of grafting to improve the performance of vegetable crops. However, the technique is hindered by several obstacles, including the synchronization of seedlings used as scions and rootstocks, and the effects of rootstocks and climatic conditions on grafting success rates. This study sought to gain insights into how such technical obstacles affect tomato grafting. An initial experiment conducted in a greenhouse set out to assess the relevance of using degree-days to predict the growth rates of seedlings used for grafting (i.e., stem diameters above cotyledons). The success rate for grafting a tomato variety (Tanya) on 10 different rootstocks from different species—namely tomato, eggplant, african eggplant, and a wild species—was assessed at different temperatures (i.e., 15, 20, 25, 30, 35, and 40 °C). The effects of grafting on plant vigor (i.e., fresh biomass), number of leaves, and plant height, and on the hydraulic conductivity of xylem vessels in the plant stem were assessed 2 weeks after grafting. The results show the advantage of using degree-days to predict the ready-to-graft stage of seedlings, as it reduced the discrepancy among trials. The grafting success rate was more than 90% at 15 and 20 °C, but decreased significantly with higher temperatures, down to 20% at 40 °C. Larger variations in growth rate for seedlings used as scions and rootstocks, a lower grafting success rate, and less vigor were recorded for heterografted plants than for homografted plants. The lower hydraulic conductivity measured in the stems of grafted plants, especially heterografted plants, was consistent with the lower plant vigor observed. Further studies are needed to investigate how grafting affects the hydraulic conductivity of xylem vessels in later developmental stages of grafted plants.

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Section: Discussionsupporting

confidence: 93%

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confidence: 99%

Impacts of Temperature and Rootstocks on Tomato Grafting Success Rates

Nordey¹,

Shem²,

Huat³

2020

horts

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“…Many countries such as China, Japan and Korea have developed acclimatization chambers for better growth of union matrix and successful grafting of vegetables. Some researchers have reported rapid growth, good survival rate and remarkable quality of seedlings grown in cure and acclimation chambers 5 – 7 . Others, reported that, some plant hormones, e.g.…”

Section: Introductionmentioning

confidence: 99%

Light quality and quantity affect graft union formation of tomato plants

Ahmed

Ali

Rizwan

et al. 2021

Sci Rep

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It is already known that there are many factors responsible for the successful formation of a graft union. However, the role of light has been little studied. In an anatomical study, Scanning Electronic Microscope (SEM) was used to explore the effects of different light-emitting diodes (LEDs) on graft union formation in grafted tomato. In addition, the expression genes related to Auxin hormone signaling pathway (SAUR67, AUX1, ARF30, and LAX3) was investigated. The obtained results showed that the concrescence process occurred faster under R7:B3 light conditions, as compared to blue (B) and white fluorescent (WFL) lights. Red light application caused a delay in the vascular tissue differentiation, which may lead to callus development on both sides, causing junctional failure and resulting in ineffective graft junctional arrangement. The expression of genes related to Auxin hormone significantly increased by R7:B3 application. We suggest that LED spectra affects the graft development of tomato plants and can improve the performance of grafted tomato seedlings.

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“…Grafting success also varies with climate conditions, i.e., temperature and air moisture. While graft-take ratios higher than 80% are commonly reported for vegetables (Vu et al 2013), lower ratios are reported in hot climates (Huat 2003;Nordey et al 2020).…”

Section: Problems Involved In Obtaining Grafted Plantsmentioning

confidence: 99%

Tapping the potential of grafting to improve the performance of vegetable cropping systems in sub-Saharan Africa. A review

Nordey¹,

Schwarz

Kenyon

et al. 2020

Agron. Sustain. Dev.

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Vegetable grafting is developing worldwide to cope with biotic and abiotic stresses. This technique faces strong regional disparities and its potential to improve crop performances is currently underexploited in sub-Saharan Africa. This review explores the potential of grafting to increase and secure vegetable production in challenging production conditions in sub-Saharan Africa and to identify the obstacles to its adoption. The major conclusions that can be drawn from the review are (1) the capacity of vegetable grafting to overcome several agronomic challenges commonly encountered in sub-Saharan Africa particularly for soilborne diseases; (2) grafting does not systematically lead to higher yields since the performance of grafted plants is closely linked with the combination of scion-rootstock chosen; (3) resistant rootstocks to the local soilborne pathogens could be identified through short-term laboratory and field experiments whereas the improvement of the tolerance to abiotic stresses would require deeper knowledge on underlying mechanisms; (4) the significant increase in the cost of using grafted plants are warranted in systems where there are no other technical alternatives to manage biotic and abiotic stresses, where profitability per plant is high, or where the use of grafted plants makes it possible to reach a profitable niche market such as off-season or organic products; and (5) vegetable grafting should therefore be promoted by providing evidence for its profitability in different production systems (open field and greenhouse cultivation) combined with supply-side interventions to build or strengthen the capacity of nursery operators to provide a continuous supply of good-quality grafted plants.

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Enhanced Graft-take Ratio and Quality of Grafted Tomato Seedlings by Controlling Temperature and Humidity Conditions

Cited by 15 publications

References 5 publications

Impacts of Temperature and Rootstocks on Tomato Grafting Success Rates

Impacts of Temperature and Rootstocks on Tomato Grafting Success Rates

Light quality and quantity affect graft union formation of tomato plants

Tapping the potential of grafting to improve the performance of vegetable cropping systems in sub-Saharan Africa. A review

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