Claim · model-written summary
Drought reduced cowpea seed yield by 50% at both sites without interacting with plant density.
- Taxon
- cowpea
Vigna unguiculatat0 - Treatment
- droughte0
- Outcome
- SYe0
- Direction
- reducede0
- Value
- 50%e0
- Qualifier
- both sitese0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSetting
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“drought reduced SY by 50% at both sites but did not interact with plant density”
t0“cowpea”
Title
P. Q. CRAUFURD; T. R. WHEELER Experimental Agriculture 1999. doi:10.1017/s0014479799003105
Other claims from this paper (11)
- Intervention effect Drought did not affect cowpea phenology at Ibadan.
- Intervention effect At Kano, drought increased cowpea vegetative phase duration by 5–6 days.
- Intervention effect At Kano, drought did not affect cowpea reproductive phase duration.
- Intervention effect Drought reduced cowpea fractional interception of radiation and radiation-use efficiency.
- Intervention effect Drought reduced cowpea total above-ground dry matter accumulation.
- Association Radiation-use efficiency and plant density interacted significantly at Kano and Ibadan.
- Observation Mean cowpea seed yield under well-watered conditions was 1600 kg ha⊃−1&/sup; at Kano.
- Observation Mean cowpea seed yield under well-watered conditions was 700 kg ha⊃−1&/sup; at Ibadan.
- Association Cowpea seed yield correlated strongly with dry matter production between flowering and maturity across locations, density and drought treatments (r = 0.96).
- Observation The authors inferred that reproductive dry matter partitioning was unaffected by location, drought or density.
- Method / resource The authors concluded cowpea seed yield can be predicted from dry matter accumulation.