Abstract
Effects of potato leafhopper, Empoasca fabae (Harris), feeding were coupled to a simple potato growth model that accumulates and partitions dry matter into leaves, stems, roots, and tubers. Feeding effects of leafhopper on potato were modeled in two ways: as a temporary and reversible reduction in the plant's potential net crop growth rate, and as leaf area lost to hopperburn. Daily reductions in potential net crop growth rate were determined by an exponential relationship of leafhopper feeding activity, which was defined as number of nymphs per 30 midplant leaves multiplied by daily degree-day increment. Rate of hopperburn development was determined from a modified logistic equation. Values for the model's parameters were derived with data from 8 or 13 sequential, within-season harvests of plant dry matter and counts of leafhopper nymphs from infested and uninfested field plots collected over 2 yr. Partitioning responses of the modeled crop were similar to those observed for field-grown plants. Model output was also verified against nymphal counts, hopperburn readings, and final yields from an independent field experiment, which resulted in a one-to-one correspondence between predicted and final yields. Computer simulations with nymph infestations at different times of the season indicated that reductions in final tuber yield were differentially effected by leafhopper feeding at different stages of growth.
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 3
Claim · model-written summary
Modeled potato partitioning resembled field observations.
- Taxon
- Potato
Solanum tuberosumt0 - Outcome
- Partitioning responsese0
- Direction
- similare0
- Comparator
- field-grown plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Partitioning responses of the modeled crop were similar to those observed for field-grown plants.”
t0“Potato Leafhopper”
Claim · model-written summary
Predicted potato yields corresponded one to one with final yields in an independent field experiment.
- Taxon
- PotatoSolanum tuberosumt0
- Outcome
- final yieldse0
- Direction
- one-to-one correspondencee0
- Comparator
- predicted and final yieldse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Model output was also verified against nymphal counts, hopperburn readings, and final yields from an independent field experiment, which resulted in a one-to-one correspondence between predicted and final yields.”
t0“Potato Leafhopper”
Claim · model-written summary
Simulated leafhopper infestations at different potato growth stages caused different final tuber yield reductions.
- Taxon
- PotatoSolanum tuberosumt0
- Treatment
- nymph infestations at different times of the seasone0
- Interactor
- leafhoppere0pest
- Outcome
- final tuber yielde0
- Direction
- reductionse0
- Comparator
- different stages of growthe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Computer simulations with nymph infestations at different times of the season indicated that reductions in final tuber yield were differentially effected by leafhopper feeding at different stages of growth.”
t0“Potato Leafhopper”
The same questions in other papers
infection · yield · Solanum tuberosum (potato)Positive and negative results
19 papers in the same direction as this paper · 4 in the opposite direction
- positive
- positive
- positive
20 papers more in this group
See all 24 papers →climate site · yield · Solanum tuberosum (potato)Positive and negative results
8 papers in the same direction as this paper · 16 in the opposite direction
- positive
- positive
- positive
21 papers more in this group
See all 25 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.