Abstract
Summary Three surveys were conducted to establish the disease spread patterns of Banana streak virus (BSV) in farmers, fields in Uganda. Transects were traced both across the fields and from infection foci within a field. BSV incidence in adjacent quadrats was also determined to quantify statistically the spatial relationships of infected plants in the fields. Severity assessment along transects across fields revealed clusters of plants with moderate to high severity and clusters of plants with no BSV or low severity. Symptom severity decreased away from foci of infection (b=−0.014; P=0.0081). Observed frequency of infected quadrat counts differed from corresponding expected frequency of infected quadrat counts (Poisson, s distribution, x 2 ; P<0.01). BSV– infected plants, therefore, were aggregated in well‐established fields. Aggregation of infected plants in farmers, fields and the decrease of severity away from infection foci suggest the likely involvement of a slow moving vector in BSV transmission.
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Claims 5
Claim · model-written summary
Severity transects revealed clusters of plants with moderate to high BSV severity and clusters with no BSV or low severity.
- Taxon
- Bananat0
- Interactor
- Banana streak virusBanana streak virust0pathogen
- Outcome
- clusters of plants with moderate to high severity and clusters of plants with no BSV or low severitye0
Verbatim
t0“Banana streak virus”
e0“Severity assessment along transects across fields revealed clusters of plants with moderate to high severity and clusters of plants with no BSV or low severity”
Claim · model-written summary
Symptom severity decreased away from foci of infection.
Verbatim
t0“Banana streak virus”
e0“Symptom severity decreased away from foci of infection (b=−0.014; P=0.0081)”
Claim · model-written summary
Observed frequency of infected quadrat counts differed from the expected frequency.
- Taxon
- Bananat0
- Interactor
- Banana streak virusBanana streak virust0pathogen
- Outcome
- frequency of infected quadrat countse0
- Direction
- differede0
Verbatim
t0“Banana streak virus”
e0“Observed frequency of infected quadrat counts differed from corresponding expected frequency of infected quadrat counts”
Claim · model-written summary
BSV-infected plants were aggregated in well-established fields.
- Taxon
- Bananat0
- Interactor
- Banana streak virusBanana streak virust0pathogen
- Outcome
- aggregatede0
Not reportedDirection
Verbatim
t0“Banana streak virus”
e0“infected plants, therefore, were aggregated”
Claim · model-written summary
The authors suggest that a slow moving vector is likely involved in BSV transmission.
- Taxon
- Bananat0
- Interactor
- Banana streak virusBanana streak virust0pathogen
- Outcome
- BSV transmissione0
- Qualifier
- likely involvement of a slow moving vectore0
Verbatim
t0“Banana streak virus”
e0“suggest the likely involvement of a slow moving vector in BSV transmission”