Claim · model-written summary
Changes in stand density explained 65% of yield variation.
- Taxon
- Alfalfa
Medicago sativat0 - Organ / stage
- stande0
- Outcome
- total variation in yielde0
- Value
- 65%e0
Not reportedMaterialGeneCompoundInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“65% of the total variation in yield could be explained by changes in stand density”
t0“Alfalfa”
Title
Influence of Meloidogyne hapla on Alfalfa Yield and Host Population Dynamics.
J W Noling; H Ferris PubMed 1985
Other claims from this paper (10)
- Intervention effect Meloidogyne hapla enhanced self-thinning in alfalfa.
- Observation Alfalfa stand density decreased exponentially with time.
- Intervention effect M. hapla reduced alfalfa stand density by 62%.
- Association Mean plant weights rose 2.59 times faster without M. hapla as stand density declined.
- Association Average individual stem weight explained 85% of yield variation.
- Intervention effect M. hapla suppressed alfalfa yield.
- Association Yield suppression generally increased over time.
- Association Yield suppression generally increased with nematode population density.
- Mechanism Yield suppression was attributed mainly to declining plant numbers.
- Mechanism Yield suppression was also attributed to suppression in individual plant weights.