Abstract
The influence of different nitrogen salts at five electrical conductivity levels (EC 2, 4, 6 and 8 mmhos/cm) on the Javanese root-knot nematode (RKN) (Meloidogyne javanica) and its interaction with cucumber was evaluated under in vitro, growth chamber and greenhouse conditions. Percentages of egg-hatching and second-stage juvenile viability of M. javanica were greatly reduced when NH4Cl, (NH4)2SO4 and NH4NO3 were used especially at the higher levels of EC and accompanied with reduction in cucumber root galling. The lower root galling (less than 2.5) was accompanied with NH4Cl, (NH4)2SO4 and (NH4)2HPO4, while KNO3 and NH4NO3 resulted in moderate root galling. In contrast to the nitrogen salts, NaCl caused a reduction in both nematode infection and root growth especially at higher EC levels and this could be due to salinity effect. Diammonium phosphate was superior over the tested salts in increasing plant and root fresh and dry weights and cucumber phosphorus content, while KNO3 was superior in increasing in plant content of potassium.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 9
Claim · model-written summary
Nitrogen salts reduced egg-hatching in the cucumber nematode system.
- Taxon
- cucumber
Cucumis sativuse0 - Treatment
- NH4Cl, (NH4)2SO4 and NH4NO3e0
- Interactor
- M. javanicaMeloidogyne javanicae0pathogen
- Outcome
- egg-hatchinge0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Percentages of egg-hatching and second-stage juvenile viability of M. javanica were greatly reduced when NH4Cl, (NH4)2SO4 and NH4NO3 were used especially at the higher levels of EC and accompanied with reduction in cucumber root galling.”
Claim · model-written summary
Nitrogen salts reduced second-stage juvenile viability in the cucumber nematode system.
- Taxon
- cucumberCucumis sativuse0
- Treatment
- NH4Cl, (NH4)2SO4 and NH4NO3e0
- Interactor
- M. javanicaMeloidogyne javanicae0pathogen
- Outcome
- second-stage juvenile viabilitye0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Percentages of egg-hatching and second-stage juvenile viability of M. javanica were greatly reduced when NH4Cl, (NH4)2SO4 and NH4NO3 were used especially at the higher levels of EC and accompanied with reduction in cucumber root galling.”
Claim · model-written summary
Nitrogen salts reduced cucumber root galling in the cucumber nematode system.
- Taxon
- cucumberCucumis sativuse0
- Treatment
- NH4Cl, (NH4)2SO4 and NH4NO3e0
- Interactor
- M. javanicaMeloidogyne javanicae0pathogen
- Outcome
- cucumber root gallinge0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Percentages of egg-hatching and second-stage juvenile viability of M. javanica were greatly reduced when NH4Cl, (NH4)2SO4 and NH4NO3 were used especially at the higher levels of EC and accompanied with reduction in cucumber root galling.”
Claim · model-written summary
Three ammonium salts accompanied lower cucumber root galling below 2.5.
- Taxon
- cucumberCucumis sativust0
- Treatment
- NH4Cl, (NH4)2SO4 and (NH4)2HPO4e0
- Outcome
- root gallinge0
- Direction
- lowere0
- Value
- less than 2.5e0
- Comparator
- KNO3 and NH4NO3e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The lower root galling (less than 2.5) was accompanied with NH4Cl, (NH4)2SO4 and (NH4)2HPO4, while KNO3 and NH4NO3 resulted in moderate root galling.”
t0“cucumber”
Claim · model-written summary
NaCl reduced cucumber nematode infection relative to nitrogen salts.
- Taxon
- cucumberCucumis sativust0
- Treatment
- NaCle0
- Outcome
- nematode infectione0
- Direction
- reductione0
- Qualifier
- especially at higher EC levelse0
- Comparator
- nitrogen saltse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In contrast to the nitrogen salts, NaCl caused a reduction in both nematode infection and root growth especially at higher EC levels and this could be due to salinity effect.”
t0“cucumber”
Claim · model-written summary
NaCl reduced cucumber root growth relative to nitrogen salts.
- Taxon
- cucumberCucumis sativust0
- Treatment
- NaCle0
- Outcome
- root growthe0
- Direction
- reductione0
- Qualifier
- especially at higher EC levelse0
- Comparator
- nitrogen saltse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In contrast to the nitrogen salts, NaCl caused a reduction in both nematode infection and root growth especially at higher EC levels and this could be due to salinity effect.”
t0“cucumber”
Claim · model-written summary
Diammonium phosphate increased plant and root fresh and dry weights relative to other salts.
- Taxon
- cucumberCucumis sativust0
- Treatment
- Diammonium phosphatee0
- Outcome
- plant and root fresh and dry weightse0
- Direction
- increasinge0
- Comparator
- tested saltse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Diammonium phosphate was superior over the tested salts in increasing plant and root fresh and dry weights and cucumber phosphorus content, while KNO3 was superior in increasing in plant content of potassium.”
t0“cucumber”
Claim · model-written summary
Diammonium phosphate increased cucumber phosphorus content relative to other salts.
- Taxon
- cucumberCucumis sativuse0
- Treatment
- Diammonium phosphatee0
- Outcome
- cucumber phosphorus contente0
- Direction
- increasinge0
- Comparator
- tested saltse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Diammonium phosphate was superior over the tested salts in increasing plant and root fresh and dry weights and cucumber phosphorus content, while KNO3 was superior in increasing in plant content of potassium.”
t0“cucumber”
Claim · model-written summary
KNO3 increased plant content of potassium relative to other salts.
- Taxon
- cucumberCucumis sativust0
- Treatment
- KNO3e0
- Outcome
- plant content of potassiume0
- Direction
- increasinge0
- Comparator
- tested saltse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Diammonium phosphate was superior over the tested salts in increasing plant and root fresh and dry weights and cucumber phosphorus content, while KNO3 was superior in increasing in plant content of potassium.”
t0“cucumber”
The same questions in other papers
sodium chloride · growth · Cucumis sativus (cucumber)Results differ
40 papers in the same direction as this paper · 12 in the opposite direction
- positive
- positive
- positive
49 papers more in this group
See all 53 papers →potassium nitrate · molecular: metabolites · Cucumis sativus (cucumber)Positive and negative results
1 in the opposite direction
- negative
ammonium chloride · Meloidogyne javanica · Cucumis sativus (cucumber)Results agree
1 paper in the same direction as this paper
- positive
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.