Abstract
Abstract Four glasshouse experiments and two field trials were conducted to determine the effects of perennial ryegrass ( Lolium perenne L.) infected with Acremonium lolii Latch, Christensen & Samuels on white clover ( Trifolium repens L.) germination, emergence, growth, and survival. Under controlled laboratory experiments, ryegrass leachates temporarily inhibited the rate of white clover germination, but did not affect white clover emergence or yield. In glasshouse experiments, the presence of A. lolii did not influence white clover emergence or growth. Emergence of indicator plant species grown in pumice sand substrate which previously grew ‘Ellett’ or ‘Grasslands Nui’ perennial ryegrass was not affected (‘Ellett’) or was enhanced (‘Grasslands Nui’) by the presence of A. lolii . In field trials, A. lolii infection did not significantly affect white clover survival, vigour, or leaves and stolons per plant, when ryegrass tiller densities were similar. Later, when tiller density of A. lolii ‐free plants decreased there was a strong inverse relationship between ryegrass tiller density and white clover vigour and growth. Radiation penetration to white clover plants was not different as a result of the presence or absence of A. lolii . It is hypothesised that below‐ground competition between ryegrass and white clover had the greatest influence on white clover vigour and growth and allelochemicals released by A. lolii had no direct influence on this relationship.
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Claims 8
Claim · model-written summary
Ryegrass leachates temporarily inhibited white clover germination rate.
- Taxon
- white clover
Trifolium repense0 - Treatment
- ryegrass leachatese0
- Outcome
- rate of white clover germinatione0
- Direction
- inhibitede0
- Qualifier
- temporarilye0
LoliumNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“ryegrass leachates temporarily inhibited the rate of white clover germination, but did not affect white clover emergence or yield.”
Claim · model-written summary
Ryegrass leachates did not affect white clover emergence or yield.
- Taxon
- white cloverTrifolium repense0
- Treatment
- ryegrass leachatese0
- Outcome
- white clover emergence or yielde0
- Direction
- did not affecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“ryegrass leachates temporarily inhibited the rate of white clover germination, but did not affect white clover emergence or yield.”
Claim · model-written summary
A. lolii presence did not influence white clover emergence or growth in glasshouse experiments.
- Taxon
- white cloverTrifolium repense0
- Treatment
- the presence of A. loliie0
- Interactor
- A. lolii
Epichloe festucae var. loliie0symbiont - Outcome
- white clover emergence or growthe0
- Direction
- did not influencee0
- Setting
- glasshouse experimentse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In glasshouse experiments, the presence of A. lolii did not influence white clover emergence or growth.”
Claim · model-written summary
Endophyte presence did not affect indicator plant emergence following Ellett ryegrass.
- Taxon
- indicator plant speciese0
- Material
- ‘Ellett’e0
- Treatment
- presence of A. loliie0
- Interactor
- A. loliiEpichloe festucae var. loliie0symbiont
- Outcome
- Emergencee0
- Direction
- not affectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Emergence of indicator plant species grown in pumice sand substrate which previously grew ‘Ellett’ or ‘Grasslands Nui’ perennial ryegrass was not affected (‘Ellett’) or was enhanced (‘Grasslands Nui’) by the presence of A. lolii .”
Claim · model-written summary
Endophyte presence enhanced indicator plant emergence following Grasslands Nui ryegrass.
- Taxon
- indicator plant speciese0
- Material
- ‘Grasslands Nui’e0
- Treatment
- presence of A. loliie0
- Interactor
- A. loliiEpichloe festucae var. loliie0symbiont
- Outcome
- Emergencee0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Emergence of indicator plant species grown in pumice sand substrate which previously grew ‘Ellett’ or ‘Grasslands Nui’ perennial ryegrass was not affected (‘Ellett’) or was enhanced (‘Grasslands Nui’) by the presence of A. lolii .”
Claim · model-written summary
A. lolii infection did not significantly affect white clover survival, vigour, leaves or stolons when ryegrass densities were similar.
- Taxon
- white cloverTrifolium repense0
- Treatment
- A. lolii infectione0
- Interactor
- A. loliiEpichloe festucae var. loliie0symbiont
- Outcome
- white clover survival, vigour, or leaves and stolons per plante0
- Direction
- did not significantly affecte0
- Qualifier
- when ryegrass tiller densities were similare0
- Setting
- field trialse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In field trials, A. lolii infection did not significantly affect white clover survival, vigour, or leaves and stolons per plant, when ryegrass tiller densities were similar.”
Claim · model-written summary
Ryegrass tiller density was inversely related to white clover vigour and growth.
- Taxon
- white cloverTrifolium repense0
- Outcome
- white clover vigour and growthe0
- Direction
- inversee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“there was a strong inverse relationship between ryegrass tiller density and white clover vigour and growth.”
Claim · model-written summary
Radiation penetration to white clover did not differ with A. lolii presence.
- Taxon
- white cloverTrifolium repense0
- Treatment
- presence or absence of A. loliie0
- Interactor
- A. loliiEpichloe festucae var. loliie0symbiont
- Outcome
- Radiation penetratione0
- Direction
- not differente0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Radiation penetration to white clover plants was not different as a result of the presence or absence of A. lolii .”
The same questions in other papers
infection · growth · Trifolium repens (white clover)Positive and negative results
4 papers in the same direction as this paper · 4 in the opposite direction
- positive
- positive
- positive
5 papers more in this group
See all 9 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.