Abstract
Grapevine leaf stripe disease (GLSD) is the most important syndrome of the esca disease complex. GLSD foliar symptoms are associated with grapevine yield losses and decline in vigour of host plants. Relationship between incidence and severity of GLSD symptoms and reductions grape quantity and quality has been demonstrated. In 2010–2012, foliar applications of mixtures of fertilizers based on calcium, magnesium and seaweed reduced symptom expression and increased yield quantity and quality. In the present study, mixture applications were carried out in 2013-2015 in different vineyards located in Abruzzo and Emilia-Romagna Regions (north-central Italy). These treatments reduced GLSD symptom incidence and severity, and applications of seaweed without calcium and magnesium was not effective. This confirmed involvement of the nutrients in the reduction of leaf symptom expression. Mechanical properties and absorbance difference measurements demonstrated increased berry quality from vines treated with the mixture. In trials carried out in 2015, the efficacy of the mixture applied in tank mix with other pest and disease control products was not reduced. We conclude that applications of calcium, magnesium and seaweed mixtures are effective for reducing the impacts of GLSD in vineyards.
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Claims 5
Claim · model-written summary
Calcium, magnesium and seaweed mixture applications reduced GLSD symptom incidence and severity in grapevine.
- Treatment
- mixture applicationse2
- Outcome
- GLSD symptom incidence and severitye1
- Direction
- reducede1
- Setting
- Abruzzo and Emilia-Romagna Regions (north-central Italy)e2
VitisNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Grapevine leaf stripe disease (GLSD) is the most important syndrome of the esca disease complex”
e1“These treatments reduced GLSD symptom incidence and severity”
e2“mixture applications were carried out in 2013-2015 in different vineyards located in Abruzzo and Emilia-Romagna Regions (north-central Italy)”
Claim · model-written summary
Seaweed applications without calcium and magnesium were not effective in reducing GLSD symptoms.
- Treatment
- applications of seaweed without calcium and magnesiume3
- Outcome
- GLSD symptom incidence and severitye3
- Direction
- was not effectivee3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Grapevine leaf stripe disease (GLSD) is the most important syndrome of the esca disease complex”
e3“These treatments reduced GLSD symptom incidence and severity, and applications of seaweed without calcium and magnesium was not effective”
Claim · model-written summary
Calcium, magnesium and seaweed mixture increased berry quality in treated vines.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Grapevine leaf stripe disease (GLSD) is the most important syndrome of the esca disease complex”
e4“Mechanical properties and absorbance difference measurements demonstrated increased berry quality from vines treated with the mixture”
Claim · model-written summary
The calcium, magnesium and seaweed mixture kept its efficacy when tank-mixed with other pest and disease control products in 2015.
- Treatment
- mixture applied in tank mix with other pest and disease control productse5
- Outcome
- efficacy of the mixturee5
- Direction
- was not reducede5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Grapevine leaf stripe disease (GLSD) is the most important syndrome of the esca disease complex”
e5“In trials carried out in 2015, the efficacy of the mixture applied in tank mix with other pest and disease control products was not reduced”
Claim · model-written summary
The nutrients in the mixture appear to be involved in reducing grapevine leaf symptom expression.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Grapevine leaf stripe disease (GLSD) is the most important syndrome of the esca disease complex”
e6“This confirmed involvement of the nutrients in the reduction of leaf symptom expression”
The same questions in other papers
magnesium atom · disease · VitisPositive and negative results
1 paper in the same direction as this paper · 2 in the opposite direction
This paper is about lacking the nutrient, so it counts the other way round here.
- positive
- positive
- no effect
calcium atom · disease · VitisPositive and negative results
2 papers in the same direction as this paper · 9 in the opposite direction
This paper is about lacking the nutrient, so it counts the other way round here.
- positive
- positive
- positive
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See all 12 papers →other · disease · VitisPositive and negative results
4 in the opposite direction
- positive
- positive
- positive
1 paper more in this group
See all 5 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.