Claim · model-written summary
P uptake was positively correlated with shoot and root dry weight.
- Taxon
- white clover
Trifolium repense0 - Organ / stage
- shoot and roote3
- Outcome
- P uptakee3
- Direction
- positively correlatede3
Not reportedMaterialGeneCompoundInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“An experiment was conducted whereby two accessions of white clover (Trifolium repens, Chiswick and Ladino) were grown in pots in a P deficient soil fertilized with a low (P5 [kg ha-1]) or high (P40) P application rate”
e3“P uptake was found to be positively correlated with shoot and root dry weight, root length, root number, root volume and surface area, and negatively correlated with mean root diameter and mean length per root”
Title
GJ Blair; DC Godwin Australian Journal of Agricultural Research 1991. doi:10.1071/ar9911271
Other claims from this paper (9)
- Intervention effect Ladino tops yield was higher than Chiswick at P40 after 40 days.
- Observation Dry weight of tops did not differ between the two P rates until day 28.
- Intervention effect Root dry weight increased with increasing P application rate.
- Observation Root growth differed significantly only at the 16 and 34 day harvests at P5.
- Association P uptake was negatively correlated with mean root diameter.
- Observation Only small differences in P uptake per unit root length were measured.
- Mechanism Total root length or root extension rate is suggested to be the primary determinant of total P uptake in these accessions.
- Mechanism Changes in root length, diameter and number suggest some form of coordination between the two accessions.
- Observation Chiswick tended to produce many short roots, whereas Ladino produced fewer long roots.