Abstract
Yield response of cowpea, Vigna unguiculata L. (Walp.), to infestation by a leafhopper Empoasca dolichi (Paoli) was studied in the field and greenhouse by using resistant and susceptible cultivars. Field studies indicated that in the absence of insecticidal protection during the preflowering growth stage, susceptible cultivars TVu 2045 and TVu 76 were severely damaged with a yield loss of more than 40%. Resistant cultivars TVu 1190E, TVu 662, TVu 3629, and TVu 4557 had a foliar damage rating of 3.0 and indicated no significant yield loss. In greenhouse studies, the susceptible cultivar TVu 76 was significantly reduced in plant height, pods per plant, and grain yield.
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Claims 4
Claim · model-written summary
Unprotected susceptible TVu 2045 and TVu 76 lost over 40% yield.
- Taxon
- cowpea
Vigna unguiculatat0 - Material
- TVu 2045 and TVu 76e0
- Treatment
- absence of insecticidal protectione1
- Interactor
- Empoasca dolichiMatsumurasca dolichit1pest
- Outcome
- yield losse0
- Direction
- losse0
- Value
- more than 40%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“susceptible cultivars TVu 2045 and TVu 76 were severely damaged with a yield loss of more than 40%”
t0“cowpea”
t1“Yield response of cowpea, Vigna unguiculata L. (Walp.), to infestation by a leafhopper Empoasca dolichi (Paoli) was studied in the field and greenhouse by using resistant and susceptible cultivars.”
e1“in the absence of insecticidal protection during the preflowering growth stage”
Claim · model-written summary
Resistant cultivars had a foliar damage rating of 3.0.
- Taxon
- cowpeaVigna unguiculatat0
- Material
- TVu 1190E, TVu 662, TVu 3629, and TVu 4557e0
- Interactor
- Empoasca dolichiMatsumurasca dolichit1pest
- Outcome
- foliar damage ratinge0
- Value
- 3.0e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Resistant cultivars TVu 1190E, TVu 662, TVu 3629, and TVu 4557 had a foliar damage rating of 3.0”
t0“cowpea”
t1“Yield response of cowpea, Vigna unguiculata L. (Walp.), to infestation by a leafhopper Empoasca dolichi (Paoli) was studied in the field and greenhouse by using resistant and susceptible cultivars.”
Claim · model-written summary
Resistant cultivars had no significant yield loss.
- Taxon
- cowpeaVigna unguiculatat0
- Material
- Resistant cultivarse1
- Interactor
- Empoasca dolichiMatsumurasca dolichit1pest
- Outcome
- yield losse0
- Direction
- no significante0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“indicated no significant yield loss”
t0“cowpea”
t1“Yield response of cowpea, Vigna unguiculata L. (Walp.), to infestation by a leafhopper Empoasca dolichi (Paoli) was studied in the field and greenhouse by using resistant and susceptible cultivars.”
e1“Resistant cultivars TVu 1190E, TVu 662, TVu 3629, and TVu 4557 had a foliar damage rating of 3.0”
Claim · model-written summary
Greenhouse leafhopper infestation significantly reduced TVu 76 height, pods, and grain yield.
- Taxon
- cowpeaVigna unguiculatat0
- Material
- TVu 76e0
- Treatment
- infestation by a leafhoppert1
- Interactor
- Empoasca dolichiMatsumurasca dolichit1pest
- Outcome
- plant height, pods per plant, and grain yielde0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the susceptible cultivar TVu 76 was significantly reduced in plant height, pods per plant, and grain yield”
t0“cowpea”
t1“Yield response of cowpea, Vigna unguiculata L. (Walp.), to infestation by a leafhopper Empoasca dolichi (Paoli) was studied in the field and greenhouse by using resistant and susceptible cultivars.”
The same questions in other papers
infection · Matsumurasca dolichi · Vigna unguiculata (cowpea)Results agree
1 paper in the same direction as this paper
- 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.