Abstract
The responses of Lolium rigidum Gaud. and L. perenne L. to low temperature seed vernalization were determined by comparing the growth and development of vernalized and unvernalized plants raised in the field and in a controlled environment cabinet. Vernalization did not appear to influence growth in the vegetative phase, but usually induced earlier heading and a greater proportion of reproductive tillers. Comparisons of vernalized (reproductive) and unvernalized (vegetative) plants show increased reproductive development to be associated with higher growth rates, lower tillering, and greater weight per tiller. High growth rates during the reproductive phase are considered to be due to the ability of reproductive tillers to grow more rapidly than vegetative tillers through the growth of true stem functioning as a "sink" for assimilate. Generalized growth curves for vernalized and unvernalized ryegrass grown under long days are presented and discussed.
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Claims 7
Claim · model-written summary
Vernalization did not appear to influence vegetative growth.
- Taxon
- Lolium rigidum Gaud. and L. perenne L.
Lolium perenne
Lolium rigidume1 - Treatment
- Vernalizatione0
- Outcome
- growth in the vegetative phasee0
- Direction
- did not appear to influencee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Vernalization did not appear to influence growth in the vegetative phase”
e1“Lolium rigidum Gaud. and L. perenne L.”
Claim · model-written summary
Vernalization usually induced earlier heading.
- Taxon
- Lolium rigidum Gaud. and L. perenne L.Lolium perenneLolium rigidume1
- Treatment
- Vernalizatione0
- Outcome
- headinge0
- Direction
- earliere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Vernalization did not appear to influence growth in the vegetative phase, but usually induced earlier heading and a greater proportion of reproductive tillers”
e1“Lolium rigidum Gaud. and L. perenne L.”
Claim · model-written summary
Vernalization increased the proportion of reproductive tillers.
- Taxon
- Lolium rigidum Gaud. and L. perenne L.Lolium perenneLolium rigidume2
- Treatment
- Vernalizatione1
- Outcome
- proportion of reproductive tillerse0
- Direction
- greatere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“usually induced earlier heading and a greater proportion of reproductive tillers”
e1“Vernalization did not appear to influence growth”
e2“Lolium rigidum Gaud. and L. perenne L.”
Claim · model-written summary
Increased reproductive development was associated with higher growth rates.
- Taxon
- Lolium rigidum Gaud. and L. perenne L.Lolium perenneLolium rigidume1
- Organ / stage
- reproductive developmente0
- Outcome
- growth ratese0
- Direction
- highere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increased reproductive development to be associated with higher growth rates”
e1“Lolium rigidum Gaud. and L. perenne L.”
Claim · model-written summary
Increased reproductive development was associated with lower tillering.
- Taxon
- Lolium rigidum Gaud. and L. perenne L.Lolium perenneLolium rigidume1
- Organ / stage
- reproductive developmente0
- Outcome
- tilleringe0
- Direction
- lowere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increased reproductive development to be associated with higher growth rates, lower tillering, and greater weight per tiller”
e1“Lolium rigidum Gaud. and L. perenne L.”
Claim · model-written summary
Increased reproductive development was associated with greater weight per tiller.
- Taxon
- Lolium rigidum Gaud. and L. perenne L.Lolium perenneLolium rigidume1
- Organ / stage
- reproductive developmente0
- Outcome
- weight per tillere0
- Direction
- greatere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increased reproductive development to be associated with higher growth rates, lower tillering, and greater weight per tiller”
e1“Lolium rigidum Gaud. and L. perenne L.”
Claim · model-written summary
The authors attribute high reproductive growth rates to rapid reproductive tiller growth through true stem sink activity.
- Taxon
- Lolium rigidum Gaud. and L. perenne L.Lolium perenneLolium rigidume1
- Organ / stage
- reproductive tillerse0
- Outcome
- High growth rates during the reproductive phasee0
- Qualifier
- true stem functioning as a "sink" for assimilatee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“High growth rates during the reproductive phase are considered to be due to the ability of reproductive tillers to grow more rapidly than vegetative tillers through the growth of true stem functioning as a "sink" for assimilate”
e1“Lolium rigidum Gaud. and L. perenne L.”
The same questions in other papers
cold · yield · Lolium perenne (perennial ryegrass)Positive and negative results
1 in the opposite direction
- no effect
cold · growth · Lolium perenne (perennial ryegrass)Positive and negative results
1 paper in the same direction as this paper · 3 in the opposite direction
- positive
- positive
- positive
1 paper more in this group
See all 5 papers →cold · phenology · Lolium perenne (perennial ryegrass)Results agree
1 paper in the same direction as this paper
- positive
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.