Abstract
The number of Aphis fabae population on ten cultivars of carrot was estimated in 2007–2009 in a field experiment. In the insulator (2008–2009) and in a pot experiments (2009) the influence of A. fabae feeding on yielding of carrot was studied. Changes in the content of soluble sugars, sucrose and total carotenoids in roots of plants infested (by this aphid) in relation to the control plants (without aphid) were also determined. In 2007, A. fabae predominated other aphid species (82.5% of total aphid population) feeding on above-ground parts of carrot. The most numerous of A. fabae colonies (total number – 22) and the largest density of aphids in one colony (56 individuals) were recorded on cultivar Kalina F1. The experiment proved a negative (depending on carrot cultivars) effect of A. fabae feeding on the yield of marketable roots. The highest decrease in the yield (above 20%) were found in three of carrot cultivars (Amsterdamska, Berlikumer 2 and Perfekcja). The decrease in yield of root was smaller (below 10 %) in the case the other cultivars (for example – Koral and Nantejska cultivars). Plants infested by the A. fabae were characterized by a decrease of soluble sugars and sucrose content in roots. Different reaction to A. fabae feeding, i.e. increase in sugar content in roots was recorded in three cultivars (Amsterdamska, Flakkese 2 and Dolanka). Decrease or increase in total carotenoids content in carrot roots was affected by A. fabae.
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
In 2007, A. fabae made up 82.5% of the total aphid population on carrot.
- Taxon
- carrot
Daucus carotat0 - Interactor
- A. fabae
Aphis fabaee1pest - Outcome
- predominated other aphid speciese1
- Value
- 82.5%e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“In 2007, A. fabae predominated other aphid species (82.5% of total aphid population) feeding on above-ground parts of carrot”
t0“in carrot crops”
Claim · model-written summary
Cultivar Kalina F1 had the most numerous A. fabae colonies on carrot, 22 colonies in total.
- Taxon
- carrotDaucus carotat0
- Material
- Kalina F1e2
- Interactor
- A. fabaeAphis fabaee2pest
- Outcome
- A. fabae coloniese2
- Value
- 22e2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“The most numerous of A. fabae colonies (total number – 22) and the largest density of aphids in one colony (56 individuals) were recorded on cultivar Kalina F1”
t0“in carrot crops”
Claim · model-written summary
The largest density of A. fabae in one colony, 56 individuals, was recorded on cultivar Kalina F1.
- Taxon
- carrotDaucus carotat0
- Material
- Kalina F1e2
- Interactor
- A. fabaeAphis fabaee2pest
- Outcome
- density of aphids in one colonye2
- Value
- 56 individualse2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“The most numerous of A. fabae colonies (total number – 22) and the largest density of aphids in one colony (56 individuals) were recorded on cultivar Kalina F1”
t0“in carrot crops”
Claim · model-written summary
A. fabae feeding decreased the yield of marketable carrot roots, depending on cultivar.
- Taxon
- carrotDaucus carotat0
- Treatment
- A. fabae feedinge3
- Interactor
- A. fabaeAphis fabaee3pest
- Outcome
- yield of marketable rootse3
- Direction
- decreaseinferrede3
- Qualifier
- depending on carrot cultivarse3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“The experiment proved a negative (depending on carrot cultivars) effect of A. fabae feeding on the yield of marketable roots”
t0“in carrot crops”
Claim · model-written summary
Yield decreased by more than 20% in three carrot cultivars, the highest decrease among cultivars.
- Taxon
- carrotDaucus carotat0
- Material
- Amsterdamska, Berlikumer 2 and Perfekcjae4
- Outcome
- yielde4
- Direction
- highest decreasee4
- Value
- above 20%e4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“The highest decrease in the yield (above 20%) were found in three of carrot cultivars (Amsterdamska, Berlikumer 2 and Perfekcja)”
t0“in carrot crops”
Claim · model-written summary
Root yield decreased by below 10% in the Koral and Nantejska carrot cultivars.
- Taxon
- carrotDaucus carotat0
- Material
- Koral and Nantejskae5
- Outcome
- yield of roote5
- Direction
- decreasee5
- Value
- below 10 %e5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“The decrease in yield of root was smaller (below 10 %) in the case the other cultivars (for example – Koral and Nantejska cultivars)”
t0“in carrot crops”
Claim · model-written summary
Carrot plants infested by A. fabae had lower soluble sugar and sucrose content in roots.
- Taxon
- carrotDaucus carotat0
- Treatment
- infested by the A. fabaee6
- Interactor
- A. fabaeAphis fabaee6pest
- Outcome
- soluble sugars and sucrose contente6
- Direction
- decreasee6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“Plants infested by the A. fabae were characterized by a decrease of soluble sugars and sucrose content in roots”
t0“in carrot crops”
Claim · model-written summary
In three carrot cultivars, A. fabae feeding increased root sugar content.
- Taxon
- carrotDaucus carotat0
- Material
- Amsterdamska, Flakkese 2 and Dolankae7
- Treatment
- A. fabae feedinge7
- Interactor
- A. fabaeAphis fabaee7pest
- Outcome
- sugar content in rootse7
- Direction
- increasee7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“Different reaction to A. fabae feeding, i.e. increase in sugar content in roots was recorded in three cultivars (Amsterdamska, Flakkese 2 and Dolanka)”
t0“in carrot crops”
Claim · model-written summary
A. fabae affected the total carotenoids content of carrot roots, with either a decrease or an increase depending on the case.
- Taxon
- carrotDaucus carotat0
- Interactor
- A. fabaeAphis fabaee7pest
- Outcome
- total carotenoids contente7
- Direction
- Decrease or increasee7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“Decrease or increase in total carotenoids content in carrot roots was affected by A. fabae”
t0“in carrot crops”