Abstract
Plant nutrient availability to Garry oats (Avena sativa L.) Var. Garry was controlled by nutrient solutions in the greenhouse. The plants were infested by apple grain aphids, Rhopalosiphum fitchii (Sand.), according to their preference for individual plants and allowed to feed and reproduce thereon for a period of 14 days. The data indicated that there' as a significantly greater population increase potential where nitrogen was available to the plants. Elimination of nitrogen from the nutrient solutions resulted in lower aphid populations and adversely affected the plants, as indicated by decreased plant height, yellowish coloration, and spindly growth. Aphid population on all treatments correlated with plant height to a highly significant degree. Whether population differences reported here were due primarily to nutrient media or plant height (leaf area) has not been determined.
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Claims 5
Claim · model-written summary
Aphid population increase potential on oats was significantly greater where nitrogen was available to the plants
- Taxon
- oats
Avena sativae1 - Treatment
- nitrogen was available to the plantse3
- Interactor
- Rhopalosiphum fitchiie2pest
- Outcome
- population increase potentiale3
- Direction
- greatere3
- Setting
- greenhousee1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Plant nutrient availability to Garry oats (Avena sativa L.) Var. Garry was controlled by nutrient solutions in the greenhouse”
e2“The plants were infested by apple grain aphids, Rhopalosiphum fitchii (Sand.)”
e3“The data indicated that there' as a significantly greater population increase potential where nitrogen was available to the plants”
Claim · model-written summary
Eliminating nitrogen from the nutrient solution resulted in lower aphid populations on oats
- Taxon
- oatsAvena sativae1
- Treatment
- Elimination of nitrogen from the nutrient solutionse4
- Interactor
- Rhopalosiphum fitchiie2pest
- Outcome
- aphid populationse4
- Direction
- lowere4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Plant nutrient availability to Garry oats (Avena sativa L.) Var. Garry was controlled by nutrient solutions in the greenhouse”
e2“The plants were infested by apple grain aphids, Rhopalosiphum fitchii (Sand.)”
e4“Elimination of nitrogen from the nutrient solutions resulted in lower aphid populations and adversely affected the plants, as indicated by decreased plant height, yellowish coloration, and spindly growth”
Claim · model-written summary
Eliminating nitrogen decreased plant height of oats
- Taxon
- oatsAvena sativae1
- Treatment
- Elimination of nitrogen from the nutrient solutionse4
- Outcome
- plant heighte4
- Direction
- decreasede4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Plant nutrient availability to Garry oats (Avena sativa L.) Var. Garry was controlled by nutrient solutions in the greenhouse”
e4“Elimination of nitrogen from the nutrient solutions resulted in lower aphid populations and adversely affected the plants, as indicated by decreased plant height, yellowish coloration, and spindly growth”
Claim · model-written summary
Eliminating nitrogen produced yellowish coloration and spindly growth in oats
- Taxon
- oatsAvena sativae1
- Treatment
- Elimination of nitrogen from the nutrient solutionse4
- Outcome
- yellowish coloration, and spindly growthe4
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Plant nutrient availability to Garry oats (Avena sativa L.) Var. Garry was controlled by nutrient solutions in the greenhouse”
e4“Elimination of nitrogen from the nutrient solutions resulted in lower aphid populations and adversely affected the plants, as indicated by decreased plant height, yellowish coloration, and spindly growth”
Claim · model-written summary
Aphid population on oats was correlated with plant height at a highly significant level
- Taxon
- oatsAvena sativae1
- Interactor
- Rhopalosiphum fitchiie2pest
- Outcome
- Aphid populatione5
- Qualifier
- plant heighte5
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Plant nutrient availability to Garry oats (Avena sativa L.) Var. Garry was controlled by nutrient solutions in the greenhouse”
e2“The plants were infested by apple grain aphids, Rhopalosiphum fitchii (Sand.)”
e5“Aphid population on all treatments correlated with plant height to a highly significant degree”
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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.