Abstract
Heterodera schachtii, Meloidogyne hapla, and Nacobbus aberrans either alone, or in various combinations with each other, can, when inoculated at a concentration of 12 second-stage juveniles/ cm(3) of soil, cause a significant (P = 0.01) suppression of growth of sugarbeet (cv. Tasco AH14) seedlings. M. hapla and H. schachtii decreased growth of sugarbeet more than N. aberrans over a 60-day period. The adverse effect of N. aberrans on the final population/initial population (Pf/Pi) ratio for either M. hapla or H. schachtii was dependent on time, and was more accentuated on that of M. hapla than on that of H. schachtii. Neither M. hapla nor H. schachtii had an adverse effect on the Pf/ Pi ratio of N. aberrans. N. aberrans is considered to be less aggressive on sugarbeet than either H. schachtii or M. hapla. Sections of sugarbeet roots infected simultaneously with H. schachtii and N. aberrans showed scattered vascular elements between the N. aberrans syncytium located in the central part of the root and that of H. schachtii in the peripheral position.
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Claims 10
Claim · model-written summary
The three named nematodes singly or in combinations significantly suppressed sugarbeet seedling growth at 12 second-stage juveniles per cubic centimetre of soil.
- Taxon
- sugarbeet
Beta vulgaris subsp. vulgarise0 - Material
- Tasco AH14e0
- Treatment
- inoculated at a concentration of 12 second-stage juveniles/ cm(3) of soile0
- Interactor
- Heterodera schachtiiHeterodera schachtiie0pathogen
- Second interactor
- Meloidogyne hapla
Meloidogyne haplae0pathogen - Outcome
- growth of sugarbeet (cv. Tasco AH14) seedlingse0
- Direction
- suppressione0
- Qualifier
- Nacobbus aberranse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Heterodera schachtii, Meloidogyne hapla, and Nacobbus aberrans either alone, or in various combinations with each other, can, when inoculated at a concentration of 12 second-stage juveniles/ cm(3) of soil, cause a significant (P = 0.01) suppression of growth of sugarbeet (cv. Tasco AH14) seedlings.”
Claim · model-written summary
M. hapla decreased sugarbeet growth more than N. aberrans over 60 days.
- Taxon
- sugarbeetBeta vulgaris subsp. vulgarise0
- Interactor
- M. haplaMeloidogyne haplae0pathogen
- Outcome
- growth of sugarbeete0
- Direction
- decreasede0
- Qualifier
- 60-day periode0
- Comparator
- N. aberranse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“M. hapla and H. schachtii decreased growth of sugarbeet more than N. aberrans over a 60-day period.”
Claim · model-written summary
H. schachtii decreased sugarbeet growth more than N. aberrans over 60 days.
- Taxon
- sugarbeetBeta vulgaris subsp. vulgarise0
- Interactor
- H. schachtiiHeterodera schachtiie0pathogen
- Outcome
- growth of sugarbeete0
- Direction
- decreasede0
- Qualifier
- 60-day periode0
- Comparator
- N. aberranse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“M. hapla and H. schachtii decreased growth of sugarbeet more than N. aberrans over a 60-day period.”
Claim · model-written summary
N. aberrans adversely affected M. hapla population ratio in a time-dependent manner.
- Taxon
- SugarbeetBeta vulgaris subsp. vulgarist0
- Interactor
- M. haplaMeloidogyne haplae0pathogen
- Second interactor
- N. aberrans
Nacobbus aberranse0pathogen - Outcome
- final population/initial population (Pf/Pi) ratio for either M. hapla or H. schachtiie0
- Direction
- adversee0
- Qualifier
- dependent on timee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The adverse effect of N. aberrans on the final population/initial population (Pf/Pi) ratio for either M. hapla or H. schachtii was dependent on time, and was more accentuated on that of M. hapla than on that of H. schachtii.”
t0“Sugarbeet”
Claim · model-written summary
N. aberrans adversely affected H. schachtii population ratio in a time-dependent manner, less than M. hapla.
- Taxon
- SugarbeetBeta vulgaris subsp. vulgarist0
- Interactor
- H. schachtiiHeterodera schachtiie0pathogen
- Second interactor
- N. aberransNacobbus aberranse0pathogen
- Outcome
- final population/initial population (Pf/Pi) ratio for either M. hapla or H. schachtiie0
- Direction
- adversee0
- Qualifier
- more accentuated on that of M. hapla than on that of H. schachtiie0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The adverse effect of N. aberrans on the final population/initial population (Pf/Pi) ratio for either M. hapla or H. schachtii was dependent on time, and was more accentuated on that of M. hapla than on that of H. schachtii.”
t0“Sugarbeet”
Claim · model-written summary
M. hapla did not adversely affect the N. aberrans population ratio.
- Taxon
- SugarbeetBeta vulgaris subsp. vulgarist0
- Interactor
- N. aberransNacobbus aberranse0pathogen
- Second interactor
- M. haplaMeloidogyne haplae0pathogen
- Outcome
- Pf/ Pi ratio of N. aberranse0
- Direction
- Neithere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Neither M. hapla nor H. schachtii had an adverse effect on the Pf/ Pi ratio of N. aberrans.”
t0“Sugarbeet”
Claim · model-written summary
H. schachtii did not adversely affect the N. aberrans population ratio.
- Taxon
- SugarbeetBeta vulgaris subsp. vulgarist0
- Interactor
- N. aberransNacobbus aberranse0pathogen
- Second interactor
- H. schachtiiHeterodera schachtiie0pathogen
- Outcome
- Pf/ Pi ratio of N. aberranse0
- Direction
- Neithere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Neither M. hapla nor H. schachtii had an adverse effect on the Pf/ Pi ratio of N. aberrans.”
t0“Sugarbeet”
Claim · model-written summary
N. aberrans was considered less aggressive on sugarbeet than H. schachtii.
- Taxon
- sugarbeetBeta vulgaris subsp. vulgarise0
- Interactor
- N. aberransNacobbus aberranse0pathogen
- Outcome
- aggressive on sugarbeete0
- Direction
- lesse0
- Comparator
- H. schachtiie0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“N. aberrans is considered to be less aggressive on sugarbeet than either H. schachtii or M. hapla.”
Claim · model-written summary
N. aberrans was considered less aggressive on sugarbeet than M. hapla.
- Taxon
- sugarbeetBeta vulgaris subsp. vulgarise0
- Interactor
- N. aberransNacobbus aberranse0pathogen
- Outcome
- aggressive on sugarbeete0
- Direction
- lesse0
- Comparator
- M. haplae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“N. aberrans is considered to be less aggressive on sugarbeet than either H. schachtii or M. hapla.”
Claim · model-written summary
Simultaneously infected sugarbeet roots showed scattered vascular elements between central N. aberrans and peripheral H. schachtii syncytia.
- Taxon
- sugarbeetBeta vulgaris subsp. vulgarise0
- Organ / stage
- rootse0
- Interactor
- N. aberransNacobbus aberranse0pathogen
- Second interactor
- H. schachtiiHeterodera schachtiie0pathogen
- Outcome
- scattered vascular elementse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sections of sugarbeet roots infected simultaneously with H. schachtii and N. aberrans showed scattered vascular elements between the N. aberrans syncytium located in the central part of the root and that of H. schachtii in the peripheral position.”
The same questions in other papers
inoculation · Heterodera schachtii · Beta vulgaris (beet)Results agree
4 papers in the same direction as this paper
- negative
- negative
- negative
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.