نتایج جستجو برای: vine leaves and grape clusters

تعداد نتایج: 16853590  

Journal: :Journal of agricultural and food chemistry 2014
Rosario Sánchez-Gómez Amaya Zalacain Gonzalo L Alonso M Rosario Salinas

Vine-shoots are an important waste in all viticulture areas that should be re-used with innovative applications. The aim of this work was to produce Airén waste vine-shoot aqueous extracts by four solid-liquid extraction techniques such as conventional solid-liquid extraction (CSLE), solid-liquid dynamic extraction (SLDE-Naviglio), microwave extraction (ME), and pressurized solvent extraction (...

2011
Amílcar Oliveira Teresa Oliveira

In this work we trait the problem of mixtures of normal distributions and methods for estimating the number of components as well as the parameters in a mixture. Also, we present a practical method for the detection of normal finite mixture distribution and respective model validation. Finally, we apply the exposed procedure to a sample of old grape-vine castes.

2013
Riccardo Flamini Fulvio Mattivi Mirko De Rosso Panagiotis Arapitsas Luigi Bavaresco

Grape is qualitatively and quantitatively very rich in polyphenols. In particular, anthocyanins, flavonols and stilbene derivatives play very important roles in plant metabolism, thanks to their peculiar characteristics. Anthocyanins are responsible for the color of red grapes and wines and confer organoleptic characteristics on the wine. They are used for chemotaxonomic studies and to evaluate...

Abstract The most important commercial use of gibberellin in horticulture is to improve the yield and marketability of table grapes. This experiment was conducted in order to evaluate the effect of different concentrations of gibberellic acid on yield components of five-year-old ʻAskariʼ seedless grapevines, based on a randomized complete block design. Gibberellic acid was sprayed on the folia...

2011
Bligh Grant Jeff Gow Brian Dollery

The Australian grape-growing and wine producing industry enjoyed meteoric growth from the early 1990s onwards, with wine sales forming an increasingly important element of both national export earnings and farm-sector income. Despite this success, a recent downward slump in industry profitability and a dampening of demand for wine has resulted in a call for governmentassisted intervention, whic...

Journal: :Journal of economic entomology 2010
Yong-Biao Liu Larry J Bettiga Kent M Daane

Controlled atmosphere treatments with ultralow oxygen (ULO treatments) were developed successfully for control of vine mealybug, Planococcusflcus Signoret (Hemiptera: Pseudococcidae), on dormant grape (Vitis spp.) benchgrafts. At 30 ppm oxygen, 3-d ULO treatment at 25 degrees C and 4-d ULO treatment at 150C achieved complete control of all life stages of P. ficus. At a much lower oxygen level (...

2014

This study was conducted Ismailoglu grape type (Vitis vinifera L.) and its vine which was aged 15 was grown on its own root in a vegetation period of 2013 in Nevşehir province in Turkey. In this research, it was investigated whether the applications of Control (C), 1/3 cluster tip reduction (1/3 CTR), shoot tip reduction (STR), 1/3 CTR + STR, TKI-HUMAS (TKI-HM) (Soil) (S), TKIHM (Foliar) (F), T...

Primary bud necrosis (PBN) of grapevine, which is a physiological disorder, seriously decreases the fruit yield of vineyards. This research was carried out to determine the effects of mineral deprivation on increasing the incidence of PBN in ‘Askari’ table grapes in Sisakht region of Southwest of Iran. For this purpose, the changes of mineral elements in leaves and PBN percentage were estimated...

Journal: :IJAEIS 2014
Giuseppe Modica Luigi Laudari Francesco Barreca Carmelo Riccardo Fichera

Physical land suitability evaluation is crucial to rural spatial planning, as it directly contributes to designing successful and sustainable interventions. This paper deals with a physical land-suitability evaluation model for Mantonico, a historical and traditional grape variety of Southern Calabria (Italy), which is showing a considerable decline in its cultivation, owing to the abandonment ...

2002
Justin R. Morris

When fruit set and rainfall are sufficient, grape yields in Arkansas are high, but rain is not always sufficient in Arkansas. There is enough, in terms of inches, but it often comes at the wrong times. Records during the past 20 years have shown that in all but 3 years in Northwest Arkansas, there have been brief dry spells during the growing season that lasted for at least two or three weeks. ...

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