Abstract
Abstract Two pyrethroid insecticides were compared with two fungicides for their effects on the rhizobial and seedling components of the N2‐fixing symbiosis in soybeans (Glycine max Merr. variety Olinda). In vitro growth of Rhizobium japonicum RI16, was inhibited in the order of HgCl2 > thiram > cypermethrin > permethrin. The emergence of the seedlings was stimulated by all chemicals tested. Also, none of the pesticides studied had any significant effect on N2 fixation (acetylene reduction), at the dosages used. Consequently, yields of the various organs were also not significantly influenced by the chemicals.
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Claims 4
Claim · model-written summary
The four chemicals inhibited growth of Rhizobium japonicum RI16 in the stated rank order.
- Taxon
- soybean
Glycine maxt0 - Treatment
- HgCl2 > thiram > cypermethrin > permethrine0
- Interactor
- Rhizobium japonicum RI16e0symbiont
- Outcome
- growth of Rhizobium japonicum RI16e0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In vitro growth of Rhizobium japonicum RI16, was inhibited in the order of HgCl2 > thiram > cypermethrin > permethrin.”
t0“soybean”
Claim · model-written summary
All tested chemicals stimulated soybean seedling emergence.
- Taxon
- soybeanGlycine maxt0
- Treatment
- all chemicals testede0
- Outcome
- emergence of the seedlingse0
- Direction
- stimulatede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The emergence of the seedlings was stimulated by all chemicals tested.”
t0“soybean”
Claim · model-written summary
Pesticides had no significant effect on soybean N2 fixation at the dosages used.
- Taxon
- soybeanGlycine maxt0
- Treatment
- pesticides studiede0
- Outcome
- N2 fixation (acetylene reduction)e0
- Direction
- any significant effecte0
- Qualifier
- at the dosages usede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Also, none of the pesticides studied had any significant effect on N2 fixation (acetylene reduction), at the dosages used.”
t0“soybean”
Claim · model-written summary
Chemicals did not significantly influence yields of soybean organs.
- Taxon
- soybeanGlycine maxt0
- Treatment
- the chemicalse0
- Outcome
- yields of the various organse0
- Direction
- not significantly influencede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Consequently, yields of the various organs were also not significantly influenced by the chemicals.”
t0“soybean”
The same questions in other papers
thiram · growth · Glycine max (soybean)Positive and negative results
1 paper in the same direction as this paper · 13 in the opposite direction
- positive
- positive
- positive
11 papers more in this group
See all 15 papers →cypermethrin · growth · Glycine max (soybean)Results agree
1 paper in the same direction as this paper
- no effect
insecticide · symbiosis · Glycine max (soybean)Positive and negative results
4 papers in the same direction as this paper · 4 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.