Terroir aspects of grape quality in a cool climate wine region: Relationship between water deficit, vegetative growth and berry sugar concentration

2011 ◽  
Vol 127 (4) ◽  
pp. 494-499 ◽  
Author(s):  
Zs. Zsófi ◽  
E. Tóth ◽  
D. Rusjan ◽  
B. Bálo
Keyword(s):  
Water Deficit ◽  
Vegetative Growth ◽  
Sugar Concentration ◽  
Grape Quality ◽  
Wine Region ◽  
Cool Climate

scholarly journals The comparison of several soil cultivation methods in the Tokaj-wine region

2008 ◽  
Vol 14 (3) ◽  
Author(s):  
J. Göblyös ◽  
A. Ulcz
Keyword(s):  
Moisture Content ◽  
Vegetative Growth ◽  
Titratable Acidity ◽  
Long Distance ◽  
Soil Cultivation ◽  
Straw Mulch ◽  
Grape Quality ◽  
Cultivation Methods ◽  
Wine Region

Our results show that the different cultivation methods have higher effect on the yield than on the grape quality. In 2007 the weather was extreme dry (from May to August only 195 mm precipitation was recorded) the straw mulch proved to be the best solution regarding the yield and the grape quality. Although no significant differences were observed in the sugar- and titratable acidity content of the must, the ratio of noble rotted berries was higher on the straw mulched plots. Straw mulch could conserve the moisture content of the soil and it seems to be contributed to the conformation of suitable microclimate for Botrytis infection, but for long distance conclusions further examinations need to be investigated. The less yield and ratio of rot was observed in case of barely covered vines and the vegetative growth of the grape was less intensive in case of these vines.

Foliar application of Tecamin flower® to alleviate water deficit on vegetative growth and yield of tomato

2018 ◽  
Vol 25 (4) ◽  
pp. 394-399
Author(s):  
Mohammed Ali Abood ◽  
Aziz Mahdi Abd Al-Shammari ◽  
Ghassan Jaafar Hamdi
Keyword(s):  
Water Deficit ◽  
Vegetative Growth ◽  
Foliar Application ◽  
Growth And Yield

Foliar application of Tecamin max® to alleviate water deficit on vegetative growth and yield of okra

2018 ◽  
Vol 25 (3) ◽  
pp. 278-284
Author(s):  
Aziz Mahdi Abd Al-Shammari ◽  
Mohammed Ali Abood ◽  
Ghassan Jaafar Hamdi
Keyword(s):  
Water Deficit ◽  
Vegetative Growth ◽  
Foliar Application ◽  
Growth And Yield

Combined effects of soil-applied and foliar-applied nitrogen on the nitrogen composition and distribution in water stressed "Vitis vinifera L." cv Sauvignon blanc grapes

OENO One ◽  
2009 ◽  
Vol 43 (4) ◽  
pp. 179
Author(s):  
Rana Jreij ◽  
Mary T. Kelly ◽  
Alain Deloire ◽  
Emmanuel Brenon ◽  
Alain Blaise
Keyword(s):  
Amino Acids ◽  
Vitis Vinifera ◽  
Water Deficit ◽  
N Fertilization ◽  
Total N ◽  
Foliar Fertilization ◽  
Sauvignon Blanc ◽  
Grape Quality ◽  
N Deficiency ◽  
Applied Nitrogen

<p style="text-align: justify;"><strong>Aims</strong>: The aim of this work is to test the effects of soil-applied nitrogen (N) at budbreak and subsequent foliar-applied N at veraison on the N composition and partitioning in berries of water stressed Vitis vinifera L. cv. Sauvignon blanc vines.</p><p style="text-align: justify;"><strong>Methods and results</strong>: N fertilizer was applied to the soil at budbreak at doses of 30 or 60 kg N/ha, while the control did not receive any treatment. This did not increase N content of leaves and the vines showed symptoms of N deficiency from the beginning of the season. In order to overcome this deficiency, N foliar sprayings were applied at veraison at doses of 2.5 or 5 kg N/ha to vines having received 30 or 60 kg N/ha of soil-applied N, respectively. Total N of berry flesh responded to N foliar fertilization more than that any other berry part, whereas amino acids in skins were the more affected by N foliar fertilization than those of other berry parts. Only the 60 soil/5 foliar N treatment produced a measurable increase in the total, assimilable and amino N in berry juices at maturity. Assimilable N was a better indicator for N summer uptake by the vine than total N. Of all amino acids, arginine showed the highest increases following N fertilization and could be considered among the better indicators to distinguish between N summer fertilization treatments.</p><p style="text-align: justify;"><strong>Conclusion</strong>: In conditions of severe water deficit and N deficiency, fertilization at a dose of 60 kg/ha soil-applied N combined with 5 kg/ha foliar-applied N improved fruit fermentability. Results support the use of foliar fertilization at veraison as a tool for enhancing grape quality and to a certain extent the style of wine.</p><p style="text-align: justify;"><strong>Significance and impact of study</strong>: This work helps to provide insight into the effect of N soil fertilization along with foliar fertilization on waterstressed vines. This may be useful in fertilization programs in the Mediterranean area and may help to choose the type and the rate of the N fertilization in case of severe vine water deficit. Also, we provide information of utmost importance on the distribution of summer foliarapplied N in grape tissues.</p>

scholarly journals Vine vigor, yield and grape quality assessment by airborne remote sensing over three years: Analysis of unexpected relationships in cv. Tempranillo

2015 ◽  
Vol 13 (2) ◽  
pp. e0903 ◽  
Author(s):  
Irene Bonilla ◽  
Fernando Martinez de Toda ◽  
Jose Antonio Martínez-Casasnovas
Keyword(s):  
Climate Change ◽  
Remote Sensing ◽  
Spatial Variability ◽  
Vegetative Growth ◽  
Multispectral Imagery ◽  
Climate Conditions ◽  
Ripening Process ◽  
Stable Pattern ◽  
Grape Quality ◽  
High Spatial Variability

<p>The prediction of grape composition is becoming more important due to the need of reducing the current levels of alcohol and pH of the wines, a problem that is exacerbated by climate change. This work presents a 3-year study of the spatial variability of grape composition in a rainfed Tempranillo vineyard located in Rioja (Spain). It is based on the acquisition of multispectral imagery at <em>véraison</em> (start of the ripening process); and zoning based on NDVI, to assess its performance for zonal management. The results reveal a high spatial variability within the plot, with a stable pattern over the years, even with very different climate conditions. NDVI was a good predictor of vegetative growth variables. However, the prediction of grape composition was more complex. Unexpectedly, anthocyanins were found to be higher in the highest vigor zone, which is probably related to the effects of climate change. This unexpected relationship is particularly discussed in the article.</p>

scholarly journals Passiflora edulis Growth Under Different Water Regimes

2020 ◽  
Vol 12 (4) ◽  
pp. 231
Author(s):  
Layanara Oliveira Faria ◽  
Ane Gabriele Vaz Souza ◽  
Fernanda Pires de Alvarenga ◽  
Frederico da Costa Mendes Silva ◽  
Jaime Santos do Rego Junior ◽  
...  
Keyword(s):  
Experimental Design ◽  
Root Growth ◽  
Water Absorption ◽  
Water Deficit ◽  
Vegetative Growth ◽  
Initial Growth ◽  
Transparent Plastic ◽  
Passiflora Edulis ◽  
Excess Water ◽  
Stomatal Sensitivity

The present study aimed to evaluate the initial growth of Passiflora edulis plants under water deficit and inundation. The work was carried out in a greenhouse covered with transparent plastic in pots with a capacity of five liters and filled with 5 kg of substrate composed of oxisol, sand and cattle manure in the proportion of 3:1:1, respectively. The experimental design used was completely randomized, with seven treatments and five repetitions; 30 days after emergence, the plants were irrigated with water equivalent to 25%, 50%, 75%, 100%, 125%, 150% and 175% of the pot capacity and the analyzes were performed on the 52nd day. The P. edulis plants under limitation and excess water showed high stomatal sensitivity to reduce the water. In addition, under water deficit, the plants showed bigger root growth to maximize water absorption from the soil, but in both stresses the plants demonstrated reduced vegetative growth, that implies retarded establishment, thus, demonstrating an average susceptibility to water deficit and inundation.

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