Abstract
The influence of various potassium nitrate (KNO 3 ) concentrations on herbicidal activity of trifluralin ( α,α,α ‐trifluoro‐2,6‐dinitro‐N,N‐dipropyl‐p‐toluidine) was investigated using hydroponically grown tomato ( Lycopersicon esculentum Mill. cv. ‘Homestead 24’) seedlings. The treatments consisted of all combinations of 0.0, 0.5, and 1.0 mg trifluralin/liter and 0, 15, and 30 meq KNO 3 /liter added to the base nutrient solution. Treatment was initiated when the third true leaf began expanding and lasted for 1 week. The addition of trifluralin to the base nutrient solution reduced fresh weight, dry weight, leaf area, chlorophyll concentration, and photosynthetic rate. The addition of 15 meq KNO 3 liter to the herbicide treatments further reduced these same parameters when compared to the herbicide alone. The addition of 30 meq KNO 3 /liter to the herbicide treatments increased the growth of the seedlings to levels comparable to, or in excess of, the herbicide alone.
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Claims 4
Claim · model-written summary
Trifluralin reduced fresh weight, dry weight and leaf area.
- Taxon
- tomato
Solanum lycopersicumt0 - Treatment
- trifluraline0
- Outcome
- fresh weight, dry weight, leaf areae0
- Direction
- reducede0
- Comparator
- base nutrient solutione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The addition of trifluralin to the base nutrient solution reduced fresh weight, dry weight, leaf area, chlorophyll concentration, and photosynthetic rate”
t0“Tomato”
Claim · model-written summary
Trifluralin reduced chlorophyll concentration and photosynthetic rate.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- trifluraline0
- Outcome
- chlorophyll concentration, and photosynthetic ratee0
- Direction
- reducede0
- Comparator
- base nutrient solutione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The addition of trifluralin to the base nutrient solution reduced fresh weight, dry weight, leaf area, chlorophyll concentration, and photosynthetic rate”
t0“Tomato”
Claim · model-written summary
Adding 15 meq potassium nitrate to herbicide treatments further reduced fresh weight, dry weight and leaf area.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- 15 meq KNO 3 litere0
- Outcome
- these same parameterse0
- Direction
- further reducede0
- Comparator
- herbicide alonee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The addition of 15 meq KNO 3 liter to the herbicide treatments further reduced these same parameters when compared to the herbicide alone”
t0“Tomato”
Claim · model-written summary
Adding 30 meq potassium nitrate increased seedling growth to levels at or above herbicide alone.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- 30 meq KNO 3 /litere0
- Outcome
- growth of the seedlingse0
- Direction
- increasede0
- Comparator
- herbicide alonee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The addition of 30 meq KNO 3 /liter to the herbicide treatments increased the growth of the seedlings to levels comparable to, or in excess of, the herbicide alone”
t0“Tomato”
The same questions in other papers
trifluralin · growth · Solanum lycopersicum (tomato)Positive and negative results
2 papers in the same direction as this paper · 1 in the opposite direction
- positive
- negative
- negative
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.