Abstract
A 3-year study in western Washington from 2010 to 2012 evaluated five tomato cultivars for tomato disease development and yield in open-ended high-tunnel versus open-field settings. Findings in 2010 revealed that severity of late blight, caused by Phytophthora infestans (US-11), was significantly (P = 0.002) lower in high-tunnel compared with open-field experimental plots based on area under disease progress curve (AUDPC) values of 0.02 versus 321, respectively. In spite of rescue foliar fungicide applications to open-field plots in 2011 and 2012, the mean number of late blight infections across cultivars was 1.8 to 30.8 compared with only 0 to 6.5 in high tunnels for these years. Furthermore, accumulated hours of leaf wetness were fewer in high tunnels than the open field each year (857 versus 1,060 in 2010, 598 versus 998 in 2011, and 885 versus 923 in 2012). Cultivar susceptibility to late blight could not be differentiated in high tunnels due to low disease pressure. However, all five cultivars proved susceptible in the open field, with ‘Oregon Spring’ consistently having the most lesions. In contrast, high-tunnel production contributed to an increased severity of physiological leaf roll compared with open-field production each year, and these values differed significantly (P = 0.0335 and 0.0252) in 2011 and 2012, respectively. AUDPC values for physiological leaf roll showed that Oregon Spring was significantly (P = <0.0001) less susceptible than other cultivars each year. Physiological leaf roll correlated positively (r values of 0.758 to 0. 960) and significantly (P < 0.05) with leaf wetness and air temperature in all years in both high-tunnel and open-field settings but the same was not true for relative humidity. Even with severe physiological leaf roll, high-tunnel production in 2010 resulted in significantly (P < 0.0001) greater total tomato yield than open-field production (35.0 versus 10.6 t ha −1 ). Although a significant interaction between production system and cultivar occurred in 2011 and 2012, tomato yield always was greater in high-tunnel than open-field plots. Open-ended high tunnels offer tomato growers a potential tool for managing late blight in western Washington while also increasing yield, and could be especially useful in organic production.
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Claims 10
Claim · model-written summary
High tunnels reduced late blight severity in 2010.
- Taxon
- Tomato
Solanum lycopersicumt0 - Treatment
- high-tunnele0
- Interactor
- Phytophthora infestans
Phytophthora infestanse0pathogen - Outcome
- severity of late blighte0
- Direction
- lowere0
- Value
- 0.02e0
- Qualifier
- 321e0
- Comparator
- open-fielde0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“severity of late blight, caused by Phytophthora infestans (US-11), was significantly (P = 0.002) lower in high-tunnel compared with open-field experimental plots based on area under disease progress curve (AUDPC) values of 0.02 versus 321”
t0“Tomato Cultivars”
Claim · model-written summary
Late blight infections were fewer in high tunnels in 2011 and 2012.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- high tunnelse0
- Outcome
- mean number of late blight infectionse0
- Direction
- lowerinferrede0
- Value
- 0 to 6.5e0
- Comparator
- 1.8 to 30.8e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“mean number of late blight infections across cultivars was 1.8 to 30.8 compared with only 0 to 6.5 in high tunnels for these years”
t0“Tomato Cultivars”
Claim · model-written summary
Leaf wetness hours were fewer in high tunnels in each year.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- high tunnelse0
- Outcome
- accumulated hours of leaf wetnesse0
- Direction
- fewere0
- Comparator
- open fielde0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“accumulated hours of leaf wetness were fewer in high tunnels than the open field each year (857 versus 1,060 in 2010, 598 versus 998 in 2011, and 885 versus 923 in 2012)”
t0“Tomato Cultivars”
Claim · model-written summary
All five cultivars were susceptible in the open field, with Oregon Spring most affected.
- Taxon
- TomatoSolanum lycopersicumt0
- Material
- ‘Oregon Spring’e0
- Outcome
- most lesionse0
- Direction
- moste0
- Setting
- open fielde0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“all five cultivars proved susceptible in the open field, with ‘Oregon Spring’ consistently having the most lesions”
t0“Tomato Cultivars”
Claim · model-written summary
High tunnels increased physiological leaf roll severity.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- high-tunnel productione0
- Outcome
- severity of physiological leaf rolle0
- Direction
- increasede0
- Comparator
- open-field productione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“high-tunnel production contributed to an increased severity of physiological leaf roll compared with open-field production each year”
t0“Tomato Cultivars”
Claim · model-written summary
Oregon Spring was less susceptible to physiological leaf roll than other cultivars.
- Taxon
- TomatoSolanum lycopersicumt0
- Material
- Oregon Springe0
- Outcome
- susceptiblee0
- Direction
- lesse0
- Comparator
- other cultivarse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Oregon Spring was significantly (P = <0.0001) less susceptible than other cultivars each year”
t0“Tomato Cultivars”
Claim · model-written summary
Physiological leaf roll correlated positively with leaf wetness and air temperature.
- Taxon
- TomatoSolanum lycopersicumt0
- Outcome
- Physiological leaf rolle0
- Direction
- positivelye0
- Qualifier
- leaf wetness and air temperaturee0
Not reportedSetting
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Physiological leaf roll correlated positively (r values of 0.758 to 0. 960) and significantly (P < 0.05) with leaf wetness and air temperature”
t0“Tomato Cultivars”
Claim · model-written summary
High tunnels raised tomato yield in 2010.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- high-tunnel productione0
- Outcome
- total tomato yielde0
- Direction
- greatere0
- Value
- 35.0e0
- Comparator
- open-field productione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“high-tunnel production in 2010 resulted in significantly (P < 0.0001) greater total tomato yield than open-field production (35.0 versus 10.6 t ha −1 )”
t0“Tomato Cultivars”
Claim · model-written summary
Tomato yield remained greater in high tunnels in 2011 and 2012.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- high-tunnele0
- Outcome
- tomato yielde0
- Direction
- greatere0
- Comparator
- open-field plotse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“tomato yield always was greater in high-tunnel than open-field plots”
t0“Tomato Cultivars”
Claim · model-written summary
Authors recommend high tunnels for late blight management and yield.
- Taxon
- tomatoSolanum lycopersicume0
- Outcome
- managing late blighte0
- Setting
- western Washingtone0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Open-ended high tunnels offer tomato growers a potential tool for managing late blight in western Washington while also increasing yield”
The same questions in other papers
protected cultivation · yield · Solanum lycopersicum (tomato)Results differ
21 papers in the same direction as this paper · 2 in the opposite direction
- positive
- no effect
- negative
20 papers more in this group
See all 24 papers →protected cultivation · disease · Solanum lycopersicum (tomato)Results agree
4 papers in the same direction as this paper
- 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.