Abstract
1-year-old grapevine cuttings (cvs. Gf Ga-58-30, Fr 993-60, Riesling, Kerner) were grown in a greenhouse in pots at four levels of nitrogen supply, in order to test their resistance to powdery mildew, downy mildew, and their possible stilbene synthesis. Our most significant findings are that: • increased rates of nitrogen supply decrease the degree of resistance against powdery and downy mildew and phytoalexin (stilbene) synthesis; • the hybrids (Gf Ga-58-30 and Fr 993-60) show a higher powdery and downy mildew resistance and a higher stiloene synthesis than the V. 11inifera varieties (Riesling and Kerner); • the amount of stilbene (resveratrol and E-viniferin) increases during the growing cycle.
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Claims 7
Claim · model-written summary
Higher nitrogen supply reduced grapevine resistance to powdery mildew.
VitisNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increased rates of nitrogen supply decrease the degree of resistance against powdery and downy mildew and phytoalexin (stilbene) synthesis”
t0“grapevine varieties”
t1“powdery mildew”
Claim · model-written summary
Higher nitrogen supply reduced grapevine resistance to downy mildew.
- Treatment
- increased rates of nitrogen supplye0
- Interactor
- downy mildewPeronosporaceaee0pathogent0
- Outcome
- resistance against powdery and downy mildewe0
- Direction
- decreasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increased rates of nitrogen supply decrease the degree of resistance against powdery and downy mildew and phytoalexin (stilbene) synthesis”
t0“grapevine varieties”
t1“powdery mildew”
Claim · model-written summary
Higher nitrogen supply reduced grapevine stilbene synthesis.
- Treatment
- increased rates of nitrogen supplye0
- Outcome
- phytoalexin (stilbene) synthesise0
- Direction
- decreasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increased rates of nitrogen supply decrease the degree of resistance against powdery and downy mildew and phytoalexin (stilbene) synthesis”
t0“grapevine varieties”
t1“powdery mildew”
Claim · model-written summary
The hybrids had higher powdery mildew resistance than Riesling and Kerner.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the hybrids (Gf Ga-58-30 and Fr 993-60) show a higher powdery and downy mildew resistance and a higher stiloene synthesis than the V. 11inifera varieties (Riesling and Kerner)”
t0“grapevine varieties”
t1“powdery mildew”
Claim · model-written summary
The hybrids had higher downy mildew resistance than Riesling and Kerner.
- Material
- Gf Ga-58-30 and Fr 993-60e0
- Interactor
- downy mildewPeronosporaceaee0pathogent0
- Outcome
- downy mildew resistancee0
- Direction
- highere0
- Comparator
- Riesling and Kernere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the hybrids (Gf Ga-58-30 and Fr 993-60) show a higher powdery and downy mildew resistance and a higher stiloene synthesis than the V. 11inifera varieties (Riesling and Kerner)”
t0“grapevine varieties”
t1“powdery mildew”
Claim · model-written summary
The hybrids had higher stilbene synthesis than Riesling and Kerner.
- Material
- Gf Ga-58-30 and Fr 993-60e0
- Outcome
- stiloene synthesise0
- Direction
- highere0
- Comparator
- Riesling and Kernere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the hybrids (Gf Ga-58-30 and Fr 993-60) show a higher powdery and downy mildew resistance and a higher stiloene synthesis than the V. 11inifera varieties (Riesling and Kerner)”
t0“grapevine varieties”
t1“powdery mildew”
Claim · model-written summary
Stilbene content increased during the growing cycle.
- Outcome
- amount of stilbene (resveratrol and E-viniferin)e0
- Direction
- increasese0
- Qualifier
- during the growing cyclee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the amount of stilbene (resveratrol and E-viniferin) increases during the growing cycle”
t0“grapevine varieties”
t1“powdery mildew”
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See all 20 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.