Abstract
One of the most commonly encountered plant-parasitic nematodes in eastern Washington Vitis vinifera vineyards is Meloidogyne hapla; however, limited research exists on the impact of this nematode on V. vinifera. The objectives of this research were to determine the impact of M. hapla on Chardonnay and Cabernet Sauvignon vine establishment and to determine the host status of V. vinifera varieties/clones predominantly grown in Washington to M. hapla. In a microplot experiment, Chardonnay and Cabernet Sauvignon vines were planted into soil inoculated with different densities of M. hapla; population dynamics of M. hapla and vine performance were monitored over 3 yr. In greenhouse experiments, several clones representing five V. vinifera varieties, Chardonnay, Riesling, Cabernet Sauvignon, Merlot, and Syrah, were evaluated as hosts for M. hapla. In both microplot and greenhouse experiments, white varieties were significantly better hosts than red varieties. In the greenhouse experiments, Chardonnay and Riesling had 40% higher reproduction factor values than Syrah and Merlot, however, all varieties/clones screened were good hosts for M. hapla (reproduction factors > 3). In the microplot experiment, M. hapla eggs/g root were 4.5 times greater in Chardonnay compared to Cabernet Sauvignon 3 yr after planting but there was no evident impact of M. hapla on vine establishment.
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Claims 5
Claim · model-written summary
White grapevine varieties were significantly better hosts for Meloidogyne hapla than red varieties.
- Taxon
- Vitis vinifera
Vitis viniferat0 - Material
- white varietiese2
- Interactor
- Meloidogyne hapla
Meloidogyne haplat0pest - Outcome
- hostse2
- Direction
- bettere2
- Comparator
- red varietiese2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Impact of Grapevine (Vitis vinifera) Varieties on Reproduction of the Northern Root-Knot Nematode (Meloidogyne hapla)”
e2“In both microplot and greenhouse experiments, white varieties were significantly better hosts than red varieties”
Claim · model-written summary
Chardonnay and Riesling had 40% higher reproduction factor values than Syrah and Merlot.
- Taxon
- Vitis viniferaVitis viniferat0
- Material
- Chardonnay and Rieslinge3
- Interactor
- Meloidogyne haplaMeloidogyne haplat0pest
- Outcome
- reproduction factor valuese3
- Direction
- highere3
- Value
- 40%e3
- Comparator
- Syrah and Merlote3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Impact of Grapevine (Vitis vinifera) Varieties on Reproduction of the Northern Root-Knot Nematode (Meloidogyne hapla)”
e3“Chardonnay and Riesling had 40% higher reproduction factor values than Syrah and Merlot”
Claim · model-written summary
All grapevine varieties and clones screened were good hosts for M. hapla, with reproduction factors above 3.
- Taxon
- Vitis viniferaVitis viniferat0
- Material
- varieties/clonese4
- Interactor
- M. haplaMeloidogyne haplae4pest
- Outcome
- good hostse4
- Value
- reproduction factors > 3e4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Impact of Grapevine (Vitis vinifera) Varieties on Reproduction of the Northern Root-Knot Nematode (Meloidogyne hapla)”
e4“all varieties/clones screened were good hosts for M. hapla (reproduction factors > 3)”
Claim · model-written summary
In the microplot experiment, M. hapla eggs per gram of root were 4.5 times greater in Chardonnay than in Cabernet Sauvignon 3 years after planting.
- Taxon
- Vitis viniferaVitis viniferat0
- Material
- Chardonnaye5
- Interactor
- M. haplaMeloidogyne haplae5pest
- Outcome
- eggs/g roote5
- Direction
- greatere5
- Value
- 4.5 timese5
- Qualifier
- 3 yr after plantinge5
- Comparator
- Cabernet Sauvignone5
- Setting
- microplote5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Impact of Grapevine (Vitis vinifera) Varieties on Reproduction of the Northern Root-Knot Nematode (Meloidogyne hapla)”
e5“In the microplot experiment, M. hapla eggs/g root were 4.5 times greater in Chardonnay compared to Cabernet Sauvignon 3 yr after planting”
Claim · model-written summary
Meloidogyne hapla inoculated at different densities had no evident impact on vine establishment.
- Taxon
- Vitis viniferaVitis viniferat0
- Material
- Chardonnay and Cabernet Sauvignone7
- Treatment
- soil inoculated with different densities of M. haplae7
- Interactor
- M. haplaMeloidogyne haplae7pest
- Outcome
- vine establishmente6
- Direction
- no evident impacte6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Impact of Grapevine (Vitis vinifera) Varieties on Reproduction of the Northern Root-Knot Nematode (Meloidogyne hapla)”
e5“In the microplot experiment, M. hapla eggs/g root were 4.5 times greater in Chardonnay compared to Cabernet Sauvignon 3 yr after planting”
e6“there was no evident impact of M. hapla on vine establishment”
e7“Chardonnay and Cabernet Sauvignon vines were planted into soil inoculated with different densities of M. hapla”
The same questions in other papers
inoculation · growth · Vitis vinifera (wine grape)Positive and negative results
8 in the opposite direction
- positive
- positive
- positive
5 papers more in this group
See all 9 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.