Claim · model-written summary
Drought at R1 reduced seed yield 46%.
- Taxon
- Cowpea
Vigna unguiculatat0 - Organ / stage
- R1 stagee0
- Treatment
- Droughte0
- Outcome
- seed yielde0
- Direction
- decreasee0
- Value
- 46%e0
Not reportedComparator
Verbatim
e0“Drought at the R1 stage led to a substantial decrease in seed yield by 46%”
t0“Cowpea”
Title
Sujan Poudel; Lekshmy V. Sankarapillai; Bikash Adhikari; et al. Journal of Agronomy and Crop Science 2025. doi:10.1111/jac.70086
Other claims from this paper (16)
- Intervention effect Drought affected gas exchange more at vegetative than reproductive stages.
- Intervention effect Photosynthesis fell 86% under drought at the vegetative stage.
- Intervention effect Photosynthesis fell 68% under drought at the reproductive stage.
- Intervention effect Chlorophyll index declined 54% at R4.
- Intervention effect Chlorophyll index showed no significant change under drought at V2.
- Intervention effect Drought reduced seed yield 35% at R4.
- Intervention effect Drought reduced seed yield 33% at V2.
- Intervention effect Drought reduced seed yield 27% at V4.
- Association At R1, yield reduction correlated with an 82% drop in stomatal conductance.
- Association At R1, yield reduction correlated with a 68% drop in photosynthesis rate.
- Association At R1, yield reduction correlated with a 44% drop in chlorophyll index.
- Association At R1, yield reduction was followed by a 3.4°C increase in leaf temperature.
- Intervention effect Reproductive stage drought increased hundred seed weight and seed protein.
- Intervention effect Reproductive stage drought decreased starch content.
- Observation Cowpea resilience ranked R1 below R4 below V2 below V4.
- Recommendation The authors recommend breeding for multi stage drought resilience to sustain rainfed yield.