Effects of exogenous growth regulators on agrobiological, technological and physiological characteristics of an interspecific grapevine cultivar

Filimon, Roxana; Rotaru, Liliana; FILIMON, Vasile Razvan

doi:10.1080/01448765.2022.2126328

Cited by 2 publications

(2 citation statements)

References 42 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Copou-Iasi viticultural center is located in the Iasi vineyard, in the northeast of Romania, 47 • 10 northern latitude and 27 • 35 eastern longitude, with favorable eco-pedoclimate conditions for growing grapevines. The climate is temperate continental, with excessive nuances, characterized by large contrasts between seasons, with harsh and dry winters, hot summers often with droughts [41]. The plot was planted at an altitude of 184 m, on a slight slope (3%) with a southern exposition (orientation of rows N-S), in a cambic chernozem soil with a clay-loamy texture, 6.8 pH units, 2.7% humus content, formed on marls with sand insertions, with the phreatic water depth at over 3 m [42].…”

Section: General Climate Conditions Of the Vineyardmentioning

confidence: 99%

“…The concentrations of assimilatory pigments, the chlorophyll a/chlorophyll b ratio and chlorophyll/carotenoids ratio varied significantly depending on the cultivar. It is known that, in grapevine leaves, the variation in chlorophyll a/b and chlorophyll/carotenoids ratios is an indicator of senescence, stress and damage to the photosynthetic apparatus [41], but little is known about the role and implication of the residual amounts of photosynthetic pigment in the woody grapevine canes, further studies being necessary.…”

Section: Chlorophyll and Carotenoid Contentmentioning

confidence: 99%

See 1 more Smart Citation

Physico-Chemical Characterization, Phenolic Compound Extraction and Biological Activity of Grapevine (Vitis vinifera L.) Canes

Filimon,

Bunea,

Bora

et al. 2023

Horticulturae

Self Cite

View full text Add to dashboard Cite

Annual grapevine pruning produces large amounts of unused waste as woody canes. The current study is aimed at the sustainable valorization of viticultural waste by establishing phenolic compound extraction conditions, composition, and biological potential of crude and purified cane extracts of three Vitis vinifera L. cultivars growing in temperate climate conditions. Grapevine canes proved to be rich in carbohydrates and minerals; chlorophyll and carotenoids were also quantified. The highest yield of phenolic compounds was obtained when dry canes (<0.5 mm) were subjected to liquid–solid extraction (1:20 w/v) with 70% (v/v) ethanol, for 4 h at 35 °C, after a preliminary ultrasound treatment (6 min., 42 KHz); Pinot Gris canes showing the highest concentration of flavonoids and non-flavonoids. Stilbenes (resveratrol) and flavan-3-ols (catechin and epicatechin) were the main phenolic representative, resveratrol concentrations varying significantly between red-black (419.01–425.60 μg/g d.w.) and white (282.19 ± 4.14 μg/g d.w.) grape cultivars. Purified extracts (C-18 cartridge) exhibited higher antioxidant and antiradical activities compared to the crude extracts, and a higher antimicrobial effect, especially against Gram-positive (Staphylococcus aureus) pathogenic bacteria. Furthermore, Saccharomyces cerevisiae and Oenococcus oeni showed a reduced susceptibility even at high extract concentrations (>100 mg/mL). These findings indicate that grapevine canes represent a valuable source of natural bioactive compounds, that are currently insufficiently known and not exploited to their true functional and economic potential.

show abstract

Section: General Climate Conditions Of the Vineyardmentioning

confidence: 99%

Section: Chlorophyll and Carotenoid Contentmentioning

confidence: 99%

Physico-Chemical Characterization, Phenolic Compound Extraction and Biological Activity of Grapevine (Vitis vinifera L.) Canes

Filimon,

Bunea,

Bora

et al. 2023

Horticulturae

Self Cite

View full text Add to dashboard Cite

show abstract

Long-Term Evolution of the Climatic Factors and Its Influence on Grape Quality in Northeastern Romania

Filimon,

Bunea,

Filimon

et al. 2024

Horticulturae

View full text Add to dashboard Cite

Climate change is currently the greatest threat to the environment as we know it today. The present study aimed to highlight the changes in the main climatic elements during the last five decades (1971–2020) in northeastern Romania (Copou-Iaşi wine-growing center) and their impact on grape quality, as part of precision viticulture strategies and efficient management of grapevine plantations. Data analysis revealed a constant and significant increase in the average air temperature in the last 50 years (+1.70 °C), more pronounced in the last 10 years (+0.61 °C), with a number of days with extreme temperatures (>30 °C) of over 3.5-fold higher, in parallel with a fluctuating precipitation regime. The increase in average temperatures in the last 40 years was highly correlated with the advancement of the grape harvest date (up to 12 days), a significant increase in Vitis vinifera L. white grape sugar concentration (+15–25 g/L), and a drastic decrease in total acidity (−2.0–3.5 g/L tartaric acid). The significant increase in the values of the bioclimatic indices require the reclassification of the wine-growing area in higher classes of favorability, raising the opportunity to grow cultivars that are more suited to warmer climates, ensuring the efficiency of the plantation, and meeting current consumer expectations.

show abstract

Effects of exogenous growth regulators on agrobiological, technological and physiological characteristics of an interspecific grapevine cultivar

Cited by 2 publications

References 42 publications

Physico-Chemical Characterization, Phenolic Compound Extraction and Biological Activity of Grapevine (Vitis vinifera L.) Canes

Physico-Chemical Characterization, Phenolic Compound Extraction and Biological Activity of Grapevine (Vitis vinifera L.) Canes

Long-Term Evolution of the Climatic Factors and Its Influence on Grape Quality in Northeastern Romania

Contact Info

Product

Resources

About