نتایج جستجو برای: grapevine products

تعداد نتایج: 295629  

Journal: :journal of agricultural science and technology 0
a. kamangar biotechnology department, imam khomeini international university, qazvin, p. o. box: 34149-288, qazvin, islamic republic of iran. r. haddad biotechnology department, imam khomeini international university, qazvin, p. o. box: 34149-288, qazvin, islamic republic of iran.

drought is still accounted as a serious agronomic problem and also one of the most important factors contributing to crop yield loss. the effect of sodium silicate (na2sio3, abbreviated as si) was investigated on the four major antioxidant enzyme activities and five other relevant components in two different grapevine cultivars (vitis vinifera l., cvs mish pestan and sahebi, as tolerant and sen...

Journal: :علوم باغبانی 0
علی عبادی امیرجمال محمود مسعود میرمعصومی منصور امیدی

abstract to produce embryogenic callus and somatic embryo, whole flower explants were collected at two sampling stages of i, iii. to produce embryogenic callus and somatic embryo, ms medium supplemented with 5 and 10µm 2,4-d and 2µm bap were used. for embryo differentiation, ms medium with 0.5mg/l iba, ms medium without any plant growth regulators, ms medium with 2mg/l iba and 0.2mg/l bap, ms m...

1997
Judit Monis Richard K. Bestwick

Grapevine leafroll (LR) and corky bark (CB) diseases occur wherever grapevines are grown and are associated with undesirable viticultural effects which include delayed ripening of fruit, reduced yield, altered fruit pigmentation, and reduced accumulation of sugar (6,24). Rootstockscion incompatibility (RSI) is a disease syndrome characterized by incompatibility at the graft union resulting in s...

2010
Olivier Lemaire Anne Moneyron Jean E. Masson

There is increasing interest worldwide in how decision-making processes concerning controversial technological innovations can be improved by better integration of input from society at large. Aiming to gain knowledge on grapevine defence mechanisms against grapevine fanleaf virus (GFLV), a severe disease, scientists wanted to carry out a field trial of genetically modified grapevine rootstocks...

2007
Thor V.M. Fajardo Érico C. Dianese Marcelo Eiras Daniela M. Cerqueira Daniela B. Lopes Marisa A.S.V. Ferreira Cláudia R.F. Martins

Leafroll is an economically important disease affecting grapevines (Vitis spp.). Nine serologically distinct viruses, Grapevine leafroll-associated virus-1 through 9, are associated with this disease. The present study describes the coat protein gene sequence of four GLRaV-3 isolates occurring in the São Francisco River basin, Northeastern Brazil. The viral RNA was extracted from GLRaV-3 ELISA-...

2013
Hans J. Maree Rodrigo P. P. Almeida Rachelle Bester Kar Mun Chooi Daniel Cohen Valerian V. Dolja Marc F. Fuchs Deborah A. Golino Anna E. C. Jooste Giovanni P. Martelli Rayapati A. Naidu Adib Rowhani Pasquale Saldarelli Johan T. Burger

Grapevine leafroll disease (GLD) is one of the most important grapevine viral diseases affecting grapevines worldwide. The impact on vine health, crop yield, and quality is difficult to assess due to a high number of variables, but significant economic losses are consistently reported over the lifespan of a vineyard if intervention strategies are not implemented. Several viruses from the family...

2015
Iratxe Zarraonaindia Sarah M. Owens Pamela Weisenhorn Kristin West Jarrad Hampton-Marcell Simon Lax Nicholas A. Bokulich David A. Mills Gilles Martin Safiyh Taghavi Daniel van der Lelie Jack A. Gilbert

UNLABELLED Grapevine is a well-studied, economically relevant crop, whose associated bacteria could influence its organoleptic properties. In this study, the spatial and temporal dynamics of the bacterial communities associated with grapevine organs (leaves, flowers, grapes, and roots) and soils were characterized over two growing seasons to determine the influence of vine cultivar, edaphic par...

2008
Élisabeth BOUDON-PADIEU Michael MAIXNER

The impact of changing climatic conditions on viticulture is currently mainly discussed with respect to alterations in grape physiology, adaptation of cultivars and cultural practice. However, pests and diseases of grapevine are influenced by changing climate, too. They are affected either directly through impacts on their life history and epidemiology or indirectly by changes of grapevine phys...

2015
Boran Hu Yaqing Yue Yong Zhu Wen Wen Fengmin Zhang Jim W. Hardie Richard H Barton

BACKGROUND AND AIMS Proton nuclear magnetic resonance spectroscopy coupled multivariate analysis (1H NMR-PCA/PLS-DA) is an important tool for the discrimination of wine products. Although 1H NMR has been shown to discriminate wines of different cultivars, a grape genetic component of the discrimination has been inferred only from discrimination of cultivars of undefined genetic homology and in ...

Journal: :Computers and Electronics in Agriculture 2016
Sarah L. MacDonald Matthew Staid Melissa Staid Monica L. Cooper

Grapevine leafroll disease (GLD) is considered to be one of the most economically destructive viral diseases of grapevines worldwide, resulting in reduced vine vigor, yield reductions, and poor fruit quality. Five pathogens (grapevine leafroll-associated viruses) are recognized as causal agents of this disease, of which Grapevine leafroll-associated virus 3 (GLRaV-3) is the most common. Althoug...

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