Abstract
The difference in PBND incidence in the rainy and dry seasons in Thailand has led to a hypothesis that temperature and relative humidity might be the causal factors. The objective of this study was to investigate the effects of temperature and relative humidity on the effectiveness of mechanical inoculation of PBNV on peanut. Two experiments were conducted in the rainy and dry seasons during 2004 to 2005, using the susceptible peanut genotype Tainan 9. The first experiment evaluated the effect of low temperature on the effectiveness of PBNV transmission by mechanical inoculation. The second experiment compared two temperature and relative humidity conditions in the rainy season and in the dry season. The results showed that exposing the PBNV-inoculated plants to low temperature (25°C, 90% RH) during a 12 h light period and 20°C, 90% RH during a 12 h dark period) for all the time during the experimental period did not increase the infected plants. Two climate conditions representing the dry season (daytime, 32°C, 44% RH, night-time, 22°C, 65% RH) and the rainy season (daytime, 36°C, 46% RH, night-time, 25°C, 70% RH) in Thailand also showed no difference in the infected plants. These results indicated that low temperature or relative humidity did not affect the transmissibility of PBNV. The difference in disease incidences in the rainy and the dry seasons in Thailand could not be explained by the difference in climatic conditions but could possibly be accounted for by the difference in vector infestation
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Claims 4
Claim · model-written summary
Continuous low temperature did not increase the number of PBNV-infected peanut plants.
- Taxon
- Peanut
Arachis hypogaeat0 - Treatment
- low temperature (25°C, 90% RH) during a 12 h light period and 20°C, 90% RH during a 12 h dark period)e0
- Interactor
- PBNVe0pathogen
- Outcome
- infected plantse0
- Direction
- did not increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“exposing the PBNV-inoculated plants to low temperature (25°C, 90% RH) during a 12 h light period and 20°C, 90% RH during a 12 h dark period) for all the time during the experimental period did not increase the infected plants”
t0“on Peanut”
Claim · model-written summary
Dry and rainy season climate conditions produced no difference in infected peanut plants.
- Taxon
- PeanutArachis hypogaeat0
- Treatment
- dry seasone0
- Outcome
- infected plantse0
- Direction
- no differencee0
- Comparator
- rainy seasone0
- Setting
- Thailande0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Two climate conditions representing the dry season (daytime, 32°C, 44% RH, night-time, 22°C, 65% RH) and the rainy season (daytime, 36°C, 46% RH, night-time, 25°C, 70% RH) in Thailand also showed no difference in the infected plants”
t0“on Peanut”
Claim · model-written summary
The authors concluded that low temperature and relative humidity did not affect PBNV transmissibility.
- Taxon
- PeanutArachis hypogaeat0
- Interactor
- PBNVe0pathogen
- Outcome
- transmissibility of PBNVe0
- Direction
- did not affecte0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“low temperature or relative humidity did not affect the transmissibility of PBNV”
t0“on Peanut”
Claim · model-written summary
Seasonal disease incidence differences could not be explained by climate and might reflect vector infestation.
- Taxon
- PeanutArachis hypogaeat0
- Outcome
- difference in disease incidencese0
- Qualifier
- difference in vector infestatione0
- Setting
- Thailande0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The difference in disease incidences in the rainy and the dry seasons in Thailand could not be explained by the difference in climatic conditions but could possibly be accounted for by the difference in vector infestation”
t0“on Peanut”
The same questions in other papers
drought · disease · Arachis hypogaea (peanut)Positive and negative results
8 papers in the same direction as this paper · 4 reporting no difference from an alternative
- positive
- positive
- positive
9 papers more in this group
See all 13 papers →humidity · disease · Arachis hypogaea (peanut)Results agree
1 paper in the same direction as this paper
- negative
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.