Search results for "berry"

Grapevine fruit set: Physiology of the abscission zone

2000

Effects of ethylene and of 'anti-ethylene' compounds on the floral pedicel abscission zone in grapevines were analysed via a laboratory model consisting of isolated flowers held in Petri dishes. Our model permitted precise determination of abscission and enabled us to test a range of physiologically-active compounds including ethylene precursors, and antagonists of ethylene action. For example, a precursor of ethylene, 1-aminocyclopropane-l-carboxylic acid, had the same effect as ethylene in promoting abscission. Conversely, an inhibition of ethylene action by silver thiosulfate or an inhibition of ethylene synthesis by amino-oxyacetic acid both strongly inhibited abscission zone function. …

Characterisation of Bobal and Crujidera grape cultivars, in comparison with Tempranillo and Cabernet Sauvignon: Evolution of leaf macronutrients and …

2008

Abstract We present characterisation data for two Spanish autochthonous grapevines, Bobal and Crujidera, in comparison with the well-known cultivars Tempranillo and Cabernet Sauvignon. Microsatellite markers were used for the molecular characterisation of Crujidera grapevines. Leaf macronutrient contents of the four cultivars were evaluated, as well as their changes at different vine developmental stages, and veraison was seen as the most suitable time to evaluate the nutritional status. Quantitative changes in some physiological parameters and the phenolic composition of the four grape varieties were measured during the last month of ripening. Polyphenols, tannins and anthocyanins increase…

Vaccinium Genus Berry Waxes and Oils

2019

Vaccinium is a common and widespread genus of about 450 species of shrubs or dwarf shrubs in the heath family (Ericaceae). Most of Vaccinium species produce edible berries and many berries are widely cultivated at an industrial scale, for example, bilberries (Vaccinium myrtillus L.), highbush blueberries (Vaccinium corymbosum L.), lingonberries (Vaccinium vitis-idaea L.), and cranberries (Vaccinium oxycoccos L.). These berries are important articles in the markets of berries in Northern countries both raw, and processed. Vaccinium berries are at first valued considering high vitamin concentrations as well as high concentrations of phenolics. However, also oils and waxes (lipids) of Vacciniu…

Effects of plant type and calcium cyanamide dosage on yield, nutritional and nutraceutical traits of strawberry in Sicily

2021

In the Mediterranean area, strawberry is usually set up by using bare-rooted plants, fresh plug plants or cold-stored plants, achieving different fruit ripening earliness and crop performance. Strawberry plants can be combined with various cultivation practices to improve strawberry fruit production and quality. Calcium cyanamide (CaCN2) is well-acknowledged as a fertilizer used in the horticulture sector. Its use can enhance the soil fertility, prevent soil acidification, and improve crop production and fruit quality. This work evaluated the effects of different pre-transplant CaCN2 dosages on bare-rooted plants, fresh plug plants or cold-stored plants. Coldstored plants with 400 kg ha(-1)…

Vapour partition of aroma compounds in strawberry flavoured custard cream and effect of fat content

2008

International audience; Gas–matrix partition coefficients (k) of volatile compounds of a strawberry flavour added to a complex model system (custard dessert, COST action 921 recipe) were determined. The influence of fat content on the volatility of the strawberry aroma compounds was investigated using full fat milk- (FFM) and skimmed milk- (SM) custards. For the purpose of this study, the phase ratio variation (PRV) method was used because of its easy application for a mixture of volatiles without requiring any calibration. From the 15 aroma compounds present in the flavouring mixture, seven were volatile enough to be detected and concentrated enough to allow the calculation of k values. Ga…

Innovative and Applied Research in Biology: Proceedings, Vol. 3/2021

2021

The collection contains SCIENTIFIC articles on the topics of the LU 79 conference reports. The main focus is on innovative and applied research in biology and interdisciplinary fields.

Antioxidant capacities and antioxidants of strawberry, blackberry and raspberry leaves

2011

The total phenolic content (Folin-Ciocalteu method), free radical scavenging ability expressed as DPPH value, ferric reducing antioxidant capacity (FRAP), and oxygen radical absorbance capacity (ORAC) were determined in water extracts of leaves from Rosaceae family plants (Fragaria vesca L., Rubus fructicosus L., and Rubus idaeus L.). The antioxidant capacities of the extracts (in the order of the above mentioned methods) were 73.6-88.9%, 60.1-71.4%, 49.7-78.0% respectively, and 45.3-66.5% of that of green tea water extract. Further, the presence of 15 compounds (gallic acid, rutin, ellagic acid, caffeic acid, p-coumaric acid, quercetin, kaempferol, myricetin, quercetin-3-d-glucoside, ascor…

Impact of climate change on the timing of strawberry phenological processes in the Baltic States

2016

Climate change has been shown to impact aspects of agriculture and phenology. This study aims to quantify changes in the timing of garden strawberry blooms and harvests in the Baltic States using Regional Climate Models (RCMs). First, parameters for a strawberry phenology model based on the growing degree day (GDD) methodology were determined. Growing degree days were calculated using a modified sine wave method that estimates the diurnal temperature cycle from the daily maximum and minimum temperature. Model parameters include the base temperature and the required cumulative GDD sum, estimated from phenological and meteorological observations in Latvia for the years 2010–2013 via iterative…

Effects of canopy covering on yield and quality of ‘Nero d’Avola’ (Vitis vinifera L.) grown in hot-arid climate condition

The impact of climate change on grapevine ecophysiology and vineyard management is predicted to be a serious problem in the next years. In fact, it has an influence on the fruit-set, yield, and in modulating decoupling between technological and phenolic ripening. Thus, it is essential to identify costeffective and easy-to-implement solutions to deal with the issue. For this purpose, the present study aims to test different shade treatments (ST) applied directly to the canopy of ′Nero d’Avola′ cultivar (Vitis vinifera L.), trying to limit the excess of light and heat that, usually occur in hot-arid climate areas as in Sicily. Two ST were imposed during the 2020 vegetative season from fruit s…

Skārienjūtīgu augstas izšķirtspējas monitoru sienas izstrāde

2017

Daudz-monitoru sienas risinājumi tiek bieži izmantoti, lai attēlotu liela apjoma informāciju, kura nav manuāli jāšķirsta. Siena uzreiz parāda vajadzīgo informāciju, ko nevar parādīt uz viena monitora bez pāršķirstīšanas, kas uzlabo ātrdarbību datu piekļūšanai no cilvēka puses. Diemžēl, bezgalīgi palielinot monitoru skaitu sienā, rodas produktivitātes problēmas no citiem aspektiem, kā fiziskā navigācija un fokusa zaudēšana. Skārienjūtīgo monitoru sienas atļautu izmantot citu pieeju fiziskajai navigācijai vai satura manipulācijai, kur lietotājs var ietekmēt monitoru saturu ar skāriena ievadu konkrētam monitoram monitora sienā. Klasisko monitoru gadījumā, lietotājam vajadzētu iet pie servera, …