Abstract
Seeds of two perennial ryegrass (Lolium perenne L.) cultivars (diploid ‘Bartwingo’ and tetraploid ‘Calibra’) were stored in hermetically sealed glass jars at four different temperatures (-80, -20, 10 and 20°C) for five years. After the storage period the seeds were sowed in containers filled with commercial substrate. Initial growth and development occurred under natural sunlight and manual watering to maintain optimum substrate moisture. After 60 days of vegetation plants were taken from the substrate, developed plants were counted, their roots were washed and whole plants were measured for shoot and root dry-weight and total biomass.Stems and leaves per plant were counted too. The research has revealed significant effects (p<0.01) of storage temperature, cultivar and their interaction to all of the investigated traits. When averaged over cultivars the highest values were observed upon storage temperature of -20°C for all the traits except root dry-weight which did not differ between -20 and -80°C. The lowest values of all investigated traits were observed upon storage at 20°C. When averaged over storage temperatures, diploid cultivar had greater number of stems and leaves and the tetraploid one had greater root dry-weight, shoot dry-weight and total biomass.
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Claims 6
Claim · model-written summary
Storage temperature, cultivar and their interaction had significant effects on all investigated traits of perennial ryegrass seedlings
- Taxon
- perennial ryegrass
Lolium perennee0 - Treatment
- storage temperaturee1
- Outcome
- all of the investigated traitse1
- Value
- p<0.01e1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seeds of two perennial ryegrass (Lolium perenne L.) cultivars”
e1“The research has revealed significant effects (p<0.01) of storage temperature, cultivar and their interaction to all of the investigated traits”
Claim · model-written summary
Seedlings from seeds stored at -20°C had the highest values for all traits, averaged over cultivars
- Taxon
- perennial ryegrassLolium perennee0
- Treatment
- storage temperature of -20°Ce2
- Outcome
- all the traitse2
- Direction
- highest valuese2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seeds of two perennial ryegrass (Lolium perenne L.) cultivars”
e2“the highest values were observed upon storage temperature of -20°C for all the traits except root dry-weight which did not differ between -20 and -80°C”
Claim · model-written summary
Root dry-weight of seedlings did not differ between seed storage at -20°C and -80°C
- Taxon
- perennial ryegrassLolium perennee0
- Treatment
- storage temperature of -20°Ce2
- Outcome
- root dry-weighte2
- Direction
- did not differe2
- Comparator
- -80°Ce2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seeds of two perennial ryegrass (Lolium perenne L.) cultivars”
e2“the highest values were observed upon storage temperature of -20°C for all the traits except root dry-weight which did not differ between -20 and -80°C”
Claim · model-written summary
Seedlings from seeds stored at 20°C had the lowest values for all traits
- Taxon
- perennial ryegrassLolium perennee0
- Treatment
- storage at 20°Ce3
- Outcome
- all investigated traitse3
- Direction
- lowest valuese3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seeds of two perennial ryegrass (Lolium perenne L.) cultivars”
e3“The lowest values of all investigated traits were observed upon storage at 20°C”
Claim · model-written summary
Diploid cultivar had greater number of stems and leaves than the tetraploid cultivar
- Taxon
- perennial ryegrassLolium perennee0
- Material
- diploid cultivare4
- Outcome
- number of stems and leavese4
- Direction
- greatere4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seeds of two perennial ryegrass (Lolium perenne L.) cultivars”
e4“diploid cultivar had greater number of stems and leaves”
Claim · model-written summary
Tetraploid cultivar had greater root dry-weight, shoot dry-weight and total biomass than the diploid cultivar
- Taxon
- perennial ryegrassLolium perennee0
- Material
- tetraploid onee5
- Outcome
- root dry-weight, shoot dry-weight and total biomasse5
- Direction
- greatere5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seeds of two perennial ryegrass (Lolium perenne L.) cultivars”
e5“the tetraploid one had greater root dry-weight, shoot dry-weight and total biomass”
The same questions in other papers
storage · growth · Lolium perenne (perennial ryegrass)Positive and negative results
1 reporting no difference from an alternative
- 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.