Abstract
The relative susceptibility of four field crops to Criconemella ornata differed greatly in microplot tests. As few as 178 freshly-introduced C. ornata/500 cm(3) of soil stunted peanut. In contrast, this nematode had no effect on the growth of corn or soybean. Large populations remaining after culture of peanut or corn enhanced the growth of tobacco. A problem of comparing the effects of a freshly introduced population of this nematode with large residual populations was encountered. Freshly extracted, greenhouse-grown inoculum caused the typical "yellows disease" on peanut, whereas much greater residual population densities following a poor host (tobacco) had little effect on the growth of peanut. It is suggested that many of the nematodes in the field following a poor host are dead. Peanut supported greater reproduction (up to 970-fold) than did other crops tested. Corn was intermediate, with a population increase as great as 264-fold; soybean and tobacco failed to maintain initial population densities.
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Claims 10
Claim · model-written summary
Freshly introduced nematodes stunted peanut at a low inoculum density.
- Taxon
- peanut
Arachis hypogaeae0 - Treatment
- 178 freshly-introduced C. ornata/500 cm(3) of soile0
- Interactor
- C. ornatae0pest
- Outcome
- stunted peanute0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“As few as 178 freshly-introduced C. ornata/500 cm(3) of soil stunted peanut.”
Claim · model-written summary
The nematode did not affect corn growth.
- Taxon
- corn
Zea mays subsp. mayse0 - Treatment
- this nematodee0
- Interactor
- Criconemella ornatae1pest
- Outcome
- growth of corne0
- Direction
- no effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“this nematode had no effect on the growth of corn or soybean”
e1“Criconemella ornata differed greatly”
Claim · model-written summary
The nematode did not affect soybean growth.
- Taxon
- soybean
Glycine maxe0 - Treatment
- this nematodee0
- Interactor
- Criconemella ornatae1pest
- Outcome
- growth of corn or soybeane0
- Direction
- no effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“this nematode had no effect on the growth of corn or soybean”
e1“Criconemella ornata differed greatly”
Claim · model-written summary
Residual nematode populations after peanut or corn cultivation enhanced tobacco growth.
- Taxon
- tobacco
Nicotiana tabacume0 - Treatment
- Large populations remaining after culture of peanut or corne0
- Interactor
- Criconemella ornatae1pest
- Outcome
- growth of tobaccoe0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Large populations remaining after culture of peanut or corn enhanced the growth of tobacco.”
e1“Criconemella ornata differed greatly”
Claim · model-written summary
Fresh greenhouse-grown nematode inoculum caused yellows disease in peanut.
- Taxon
- peanutArachis hypogaeae0
- Treatment
- Freshly extracted, greenhouse-grown inoculume0
- Interactor
- Criconemella ornatae1pest
- Outcome
- "yellows disease" on peanute0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Freshly extracted, greenhouse-grown inoculum caused the typical "yellows disease" on peanut”
e1“Criconemella ornata differed greatly”
Claim · model-written summary
Residual nematodes following tobacco cultivation had little effect on peanut growth.
- Taxon
- peanutArachis hypogaeae0
- Treatment
- residual population densities following a poor host (tobacco)e0
- Interactor
- Criconemella ornatae1pest
- Outcome
- growth of peanute0
- Direction
- little effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“much greater residual population densities following a poor host (tobacco) had little effect on the growth of peanut”
e1“Criconemella ornata differed greatly”
Claim · model-written summary
Peanut supported nematode reproduction up to 970-fold, greater than other crops.
- Taxon
- PeanutArachis hypogaeae0
- Interactor
- Criconemella ornatae1pest
- Outcome
- reproductione0
- Direction
- greatere0
- Value
- 970-folde0
- Comparator
- other crops testede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Peanut supported greater reproduction (up to 970-fold) than did other crops tested.”
e1“Criconemella ornata differed greatly”
Claim · model-written summary
Corn supported a nematode population increase up to 264-fold.
- Taxon
- CornZea mays subsp. mayse0
- Interactor
- Criconemella ornatae1pest
- Outcome
- population increasee0
- Direction
- increasee0
- Value
- 264-folde0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Corn was intermediate, with a population increase as great as 264-fold”
e1“Criconemella ornata differed greatly”
Claim · model-written summary
Soybean failed to maintain the initial nematode population.
- Taxon
- soybeanGlycine maxe0
- Interactor
- Criconemella ornatae1pest
- Outcome
- initial population densitiese0
- Direction
- failed to maintaine0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“soybean and tobacco failed to maintain initial population densities”
e1“Criconemella ornata differed greatly”
Claim · model-written summary
Tobacco failed to maintain the initial nematode population.
- Taxon
- tobaccoNicotiana tabacume0
- Interactor
- Criconemella ornatae1pest
- Outcome
- initial population densitiese0
- Direction
- failed to maintaine0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“soybean and tobacco failed to maintain initial population densities”
e1“Criconemella ornata differed greatly”
The same questions in other papers
Nicotiana tabacum · growth · Arachis hypogaea (peanut)Positive and negative results
2 in the opposite direction
- positive
- positive
Arachis hypogaea · growth · Nicotiana tabacum (tobacco)Positive and negative results
5 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
- positive
3 papers more in this group
See all 7 papers →Zea mays subsp. mays · growth · Nicotiana tabacum (tobacco)Results agree
1 paper in the same direction as this paper
- positive
inoculation · organism · Arachis hypogaea (peanut)Positive and negative results
5 in the opposite direction
- positive
- positive
- positive
2 papers more in this group
See all 6 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.