Claim · model-written summary
White clover supplied with nitrate yielded more than plants dependent on symbiotic nitrogen fixation
- Taxon
- white clover
Trifolium repense0 - Treatment
- supplied with nitratee2
- Outcome
- yieldede2
- Direction
- moree2
- Comparator
- the otherse2
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Nodulated white clover plants were subjected to a range of phosphate concentrations in flowing solution culture”
e2“although the plants supplied with nitrate yielded more than the others”
Title
The Uptake of Phosphate by Plants from Flowing Nutrient Solution
V. G. BREEZE; M. J. HOPPER Journal of Experimental Botany 1987. doi:10.1093/jxb/38.4.618
Other claims from this paper (9)
- Intervention effect Phosphate concentration in solution had no effect on dry matter production or relative growth rate of white clover after 24 d
- Intervention effect Phosphate concentration in solution had no effect on root/shoot ratio or water soluble carbohydrate concentration of white clover after 24 d
- Association Phosphate uptake by white clover was related to phosphate concentration in solution
- Intervention effect Source of nitrogen did not affect phosphorus concentrations in white clover shoots
- Intervention effect Roots of white clover dependent on symbiotically fixed nitrogen had higher phosphorus concentrations than roots of plants supplied with nitrate
- Intervention effect Amount of nitrogen fixed by white clover was unaffected by phosphate concentration in solution
- Intervention effect Plants dependent on nitrogen fixation had no larger calcium requirement than plants supplied with nitrate
- Observation Plants dependent on nitrogen fixation required hydroxyl ions equivalent to over 130 kg lime per tonne of dry shoot
- Mechanism Enhanced phosphate uptake by plants dependent on nitrogen fixation is suggested to result from a need for a cation-charge balancing anion