Claim · model-written summary
Total nitrogenase activity of cowpea averaged over four Rhizobium strains was significantly reduced under drought, from 14.5 to 3.7 mmoles of ethylene per plant per growing season.
- Taxon
- cowpea
Vigna unguiculatae0 - Treatment
- droughted regimee5
- Outcome
- total nitrogenase activitye5
- Direction
- reductione5
- Value
- 3.7e5
- Qualifier
- mmoles of ethylene/plant/growing seasone5
- Comparator
- well‐waterede5
RhizobiumNot reportedMaterialGeneCompoundOrgan / stageSecond interactorSecond interactor roleSetting
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The cowpea, ( Vigna unguiculata (L.) Walp.), is considered a drought‐tolerant legume”
e5“Consequently, there was a significant reduction in total nitrogenase activity (mmoles of ethylene/plant/growing season) averaged over four Rhizobium strains from 14.5 in the well‐watered to 3.7 in the droughted regime”
Title
Robert M. Zablotowicz; Dennis D. Focht; Glen H. Cannell Agronomy Journal 1981. doi:10.2134/agronj1981.00021962007300010003x
Other claims from this paper (5)
- Intervention effect Nodulation was lower in droughted cowpea plants (15 mg/plant at flowering) than in well-watered plots (175 mg/plant at flowering).
- Intervention effect Nodulation did not differ significantly between water regimes after the flowering stage.
- Observation Maximum total nitrogenase activity of well-watered cowpea plants was 22.5 and 18.8 µmoles of ethylene per plant per hour at flowering and pod-fill.
- Observation Under the dry regime, maximum nitrogenase activity of cowpea was 5.3 and 4.5 µmoles of ethylene per plant per hour at pod-fill and pod yellowing.
- Intervention effect Seed yields of droughted cowpea plants did not decrease below those of well-watered plants despite lower nitrogen fixation capacity.