Improvement of Physical and Chemical Properties of Thompson Seedless Grapes (H4 Strain) by Application of Brassinolide and Gibberellic Acid

Belal, B. E. A.

doi:10.21608/ejoh.2019.16758.1116

Cited by 4 publications

(3 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Physical and chemical analysis of bunches and berries: samples of four bunches per vine were taken at harvest time for the following measurements: Average bunch weight (g) and the number of berries per bunch. While the coefficient of bunch compactness was calculated by dividing the number of bunch berries by bunch length (Belal, 2019), as well as average berry weight (g) and berry size (mm) were also estimated.…”

Section: Methodsmentioning

confidence: 99%

Improving Yield and Bunches Quality of Sultana ‘H4 strain’ Grapevines

Elatafi

Doaa

Samra

2022

Journal of Plant Production

View full text Add to dashboard Cite

This study was carried out during the seasons of 2021-2022 to study the effect of GA3 plus urea each alone or with trunk girdling and bunches tipping on yield and bunch quality of Sultana 'H4 strain' grapevines. The data reveal that spraying vines with GA3 plus urea at the beginning of (15-20%) flowering significantly reduced the number of berries per bunch and the compactness coefficient of the bunch than the control. Furthermore, sprayed vines with GA3 plus urea with both trunk girdling and bunches tipping significantly produced a higher bunch weight, berry weight, and size. Despite this, treated bunches with GA3 plus urea gave no clear effect of SSC/acid ratio in berry juice than the control but increased the values of total chlorophyll a and b content in berry skin. Whereas, when girdling the trunk and tipping the bunch produced a higher SSC/acid ratio in berry juice and total carotenoid content in berry skin than the control.

show abstract

Section: Methodsmentioning

confidence: 99%

Improving Yield and Bunches Quality of Sultana ‘H4 strain’ Grapevines

Elatafi

Doaa

Samra

2022

Journal of Plant Production

View full text Add to dashboard Cite

show abstract

“…Thompson seedless grapevine is the most imperative table grapevine cultivar in Egypt, particularly in the Delta region for local consumption and exportation. Recently, H4 is a promising strain of Thompson seedless grapevine introduced to Egypt in 2012, which has been cultivated extensively owing to its high vigor and fertility, superior yield and high cluster weight [4]. Yet, a huge acreage is situated at the newly reclaimed soils that have several troubles such as salinity.…”

Section: Introductionmentioning

confidence: 99%

Morpho-Physiological and Anatomical Alterations of Salt-Affected Thompson Seedless Grapevine (Vitis vinifera L.) to Brassinolide Spraying

et al. 2022

View full text Add to dashboard Cite

Salinity is one of the most critical crises worldwide that ultimately compromises future food security. Brassinosteroids including brassinolide (BL) are a class of polyhydroxy steroids phytohormones, that play a crucial role in several plant metabolic pathways and boost plants’ stress tolerance, but less data is accessible on its function in salt-affected grapevine. The experiment was conducted throughout the 2019 and 2020 experimental seasons at EL-Baramon experimental farm, Horticulture Research Institute, Mansoura, Egypt, to recognize the remediation potential of BL (1 and 2 mg L−1) in lightening salinity (NaCl at 1000, 2000, and 3000 mg L−1) injury on Thompson seedless grapevine seedlings (H4 strain) growth and physio-anatomical attributes. Data advocated that while salinity reduced growth attributes, BL applications substantially improved the overall salt-affected plant performance. Salinity stress significantly decreased photosynthetic pigment, relative water content, and ions percentage (nitrogen, phosphorus, potassium, potassium/sodium ratio). Alternatively, BL spraying significantly (p ≤ 0.05) increased the photosynthetic pigment, maintaining a favorable potassium/sodium ratio and increasing the ions percentage. Additionally, increasing salinity levels significantly boost plant sodium percentage and induce a membrane malfunction associated with increased membrane permeability; conversely, the application of BL decreased the sodium percentage associated with decreasing membrane permeability relative to non-treated salinized plants. Moreover, salinity and/or BL significantly improved the antioxidant capacity associated with rising proline accumulation and antioxidant enzyme activities. Anatomically, salinity stress considerably modified leaf structure; meanwhile, the spraying with BL drastically mitigates the harmful effects of salinity on leaf anatomy. Additionally, salt-affected plant cells explained various obvious organelles ultrastructural modifications and cellular damage; meanwhile, BL spraying to salt-affected plants repealed the ultrastructural modifications of cell organelles. Taken together, BL, especially 2 mg L−1, has a great potential to boost the salt tolerance of Thompson seedless grapevine seedlings (H4 strain). It improves salt tolerance by sustaining higher photosynthetic pigment concentrations, maintaining ion homeostasis, regulating water status, and stimulating antioxidant capacity as well as maintaining leaf anatomical attributes.

show abstract

“…It is used as a fresh table grape, making raisins and for export. H4 is a strain of the Thompson seedless cultivar, which has been widely spread in recent years due to its high yield and weight of cluster, in addition to vigor of vegetative growth (Belal, 2019).…”

Section: Introductionmentioning

confidence: 99%

Effect of Some Rootstocks on Vegetative Growth, Nutrient Content, Yield and Quality of Thompson Seedless Grapevines and H4 Strain under Conditions of Egyptian Delta Region

El-kenawy

Belal

Mohamed

2022

Egyptian Journal of Horticulture

View full text Add to dashboard Cite

T HE GENERAL trend of expanding in the cultivation of grapes in the Delta region depends on the cultivation of grafted cultivars on different rootstocks, with a preference for the cultivation of H4 strain grafted over the Thomson Seedless grafted. The aim of this study was to evaluate grafting Thomson Seedless and H4 strain cultivars on three different rootstocks (Freedom, Salt Creek, and SO4) compared with non-grafted (own rooted) to select the most suitable rootstock under clay soil conditions and surface irrigation system of the Delta region, Egypt. This experiment was conducted over four consecutive seasons (2019, 2020, 2021, and 2022), and the data were taken during the 2021 and 2022 seasons. Results showed that grafting Thomson Seedless and H4 strain cultivars on Freedom, Salt Creek and SO4 rootstocks was better than non-grafted(own rooted) on improving all studied parameters. The best results for all studied parameters were obtained when the vines were grafted on Freedom followed by Salt Creek followed by SO4. In addition, the obtained results showed that the H4 strain grafted on Freedom rootstock recorded the significant highest values as compared with Thomson Seedless grafted on Freedom in most studied parameters. Therefore, it is recommended to graft Thomson Seedless and H4 strain cultivars on Freedom rootstock under the conditions of clay soil and surface irrigation system in the Delta region, with preference planting of the H4 strain due toits good vegetative growth, high cluster weight, and yield. However, further studies to reduce the compactness coefficient of clusters are essential in this strain.

show abstract

Improvement of Physical and Chemical Properties of Thompson Seedless Grapes (H4 Strain) by Application of Brassinolide and Gibberellic Acid

Cited by 4 publications

References 11 publications

Improving Yield and Bunches Quality of Sultana ‘H4 strain’ Grapevines

Improving Yield and Bunches Quality of Sultana ‘H4 strain’ Grapevines

Morpho-Physiological and Anatomical Alterations of Salt-Affected Thompson Seedless Grapevine (Vitis vinifera L.) to Brassinolide Spraying

Effect of Some Rootstocks on Vegetative Growth, Nutrient Content, Yield and Quality of Thompson Seedless Grapevines and H4 Strain under Conditions of Egyptian Delta Region

Contact Info

Product

Resources

About