Abstract
In this study, changes of the development of the target leaf spot on cucumber plants (Cucumis sativus) were investigated with three different culture methods; i.e, (1) scion cv. 'Shinhokusei-ichigo' grafted on cv. 'Shintosa-ichigo' (Cucurbita maxima/C. moschata) as a bloomy rootstock, (2) grafted on cv. 'Super-Unryu' (C . moschata/C. pepo//C. moschata) as a representative bloomless rootstock, and (3) cv. 'Shinhokusei -ichigo' as a non-grafting culture . The disease development in the field is severer in the bloomless rootstock than in bloomy rootstock or scion root. The bloomless rootstock causes the reduc tion of resistance to Corynespora target leaf spot caused by Corynespora melonis. Inoculation tests indicated that the bloomless rootstock was inferior to bloomy rootstock and scion root in preventing penetration and spread of the lesion. The leaf-analysis showed that no difference was observed in essential and major elements among three culture methods, but silica was conspicuously less in the cucumber grafted on bloomless rootstock. Development of the disease increased in non-silicate fertilizer culture. These results strongly suggest that the low-absorption of silica in the cucumber grafted on the bloomless rootstock may cause the decrease of disease resistance to Corynespora target leaf spot.
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Claims 6
Claim · model-written summary
In the field, cucumber grafted on a bloomless rootstock had more severe Corynespora target leaf spot than on bloomy rootstock or scion roots.
- Taxon
- Cucumber
Cucumis sativust0 - Treatment
- bloomless rootstocke1
- Interactor
- Corynespora melonise2pathogen
- Outcome
- disease developmente1
- Direction
- severere1
- Comparator
- bloomy rootstock or scion roote1
- Setting
- in the fielde1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Corynespora Target Leaf Spot in Cucumber Grafted on a Bloomless Rootstock”
e1“The disease development in the field is severer in the bloomless rootstock than in bloomy rootstock or scion root”
e2“The bloomless rootstock causes the reduc tion of resistance to Corynespora target leaf spot caused by Corynespora melonis”
Claim · model-written summary
In inoculation tests, the bloomless rootstock was inferior to bloomy rootstock and scion roots in preventing penetration and spread of the lesion.
- Taxon
- CucumberCucumis sativust0
- Treatment
- bloomless rootstocke3
- Interactor
- Corynespora melonise2pathogen
- Outcome
- preventing penetration and spread of the lesione3
- Direction
- inferiore3
- Comparator
- bloomy rootstock and scion roote3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Corynespora Target Leaf Spot in Cucumber Grafted on a Bloomless Rootstock”
e2“The bloomless rootstock causes the reduc tion of resistance to Corynespora target leaf spot caused by Corynespora melonis”
e3“Inoculation tests indicated that the bloomless rootstock was inferior to bloomy rootstock and scion root in preventing penetration and spread of the lesion”
Claim · model-written summary
Silica in leaves of cucumber grafted on bloomless rootstock was conspicuously less than in the other culture methods.
- Taxon
- CucumberCucumis sativust0
- Treatment
- bloomless rootstocke4
- Outcome
- silicae4
- Direction
- lesse4
- Comparator
- three culture methodse4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Corynespora Target Leaf Spot in Cucumber Grafted on a Bloomless Rootstock”
e4“no difference was observed in essential and major elements among three culture methods, but silica was conspicuously less in the cucumber grafted on bloomless rootstock”
Claim · model-written summary
Essential and major leaf elements did not differ among the three culture methods.
- Taxon
- CucumberCucumis sativust0
- Outcome
- essential and major elementse4
- Direction
- no differencee4
- Comparator
- three culture methodse4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Corynespora Target Leaf Spot in Cucumber Grafted on a Bloomless Rootstock”
e4“no difference was observed in essential and major elements among three culture methods, but silica was conspicuously less in the cucumber grafted on bloomless rootstock”
Claim · model-written summary
Disease development increased in cucumber grown in non-silicate fertilizer culture.
- Taxon
- CucumberCucumis sativust0
- Treatment
- non-silicate fertilizer culturee5
- Outcome
- Development of the diseasee5
- Direction
- increasede5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Corynespora Target Leaf Spot in Cucumber Grafted on a Bloomless Rootstock”
e5“Development of the disease increased in non-silicate fertilizer culture”
Claim · model-written summary
The authors suggest that low silica absorption by cucumber on bloomless rootstock may cause reduced disease resistance.
- Taxon
- CucumberCucumis sativust0
- Compound
- silicae6
- Outcome
- decrease of disease resistancee6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Corynespora Target Leaf Spot in Cucumber Grafted on a Bloomless Rootstock”
e6“the low-absorption of silica in the cucumber grafted on the bloomless rootstock may cause the decrease of disease resistance to Corynespora target leaf spot”
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See all 202 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.