Abstract
Considering forage grass species, germination is one of the important stagesconcerning the growing stage that is often influenced by environmental stresses,particularly salinity and drought stresses. Thus, this study aims to assess the effects ofsalinity and drought stresses on germination characteristics and seedling growth of desertwheatgrass, Agropyron desertorum (Fisch. ex Link) Schult. in laboratory conditions. Twoseparate experiments were conducted using completely randomized design with fourreplicates. Six salinity treatments (control, 50, 100, 150, 200 and 300 mM NaCl) and sixdrought treatments (control, -0.2, -0.4, -0.6, -0.8 and -1 MPa polyethylene glycol) wereutilized in four replicates. Germination percentage and rate were calculated whilecomputing the germinated seeds every day. Growth parameters (rootlet, shoot and seedlinglength), allometric index and seed vigor have been accordingly given. For eachexperiment, one-way ANOVA was used to determine significant effects of treatments andmean comparison was done by the means of Duncan method using SPSS software. Resultsshowed that salinity and drought stresses had the significant effects on germination andgrowth indices of Agropyron desertorum so that germination rate and percentage, rootlength, shoot length, seedling length and seed vigor indices were decreased by increasingthe concentrations of salinity and drought treatments. Also, seed germination and growthwere observed only until -0.4 MPa drought level so that germination at φs = -0.6 MP wascompletely stopped.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher.
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 5
Claim · model-written summary
Increasing salinity reduced wheatgrass germination rate and percentage.
- Taxon
- Agropyron desertorum
.jpg?width=60)
Agropyron desertorume0 - Treatment
- salinitye0
- Outcome
- germination rate and percentagee0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“salinity and drought stresses had the significant effects on germination andgrowth indices of Agropyron desertorum so that germination rate and percentage, rootlength, shoot length, seedling length and seed vigor indices were decreased by increasingthe concentrations of salinity and drought treatments”
Claim · model-written summary
Increasing drought stress reduced wheatgrass germination rate and percentage.
- Taxon
- Agropyron desertorumAgropyron desertorume0
- Treatment
- droughte0
- Outcome
- germination rate and percentagee0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“salinity and drought stresses had the significant effects on germination andgrowth indices of Agropyron desertorum so that germination rate and percentage, rootlength, shoot length, seedling length and seed vigor indices were decreased by increasingthe concentrations of salinity and drought treatments”
Claim · model-written summary
Increasing salinity reduced root, shoot and seedling length and seed vigor.
- Taxon
- Agropyron desertorumAgropyron desertorume1
- Treatment
- salinitye0
- Outcome
- rootlength, shoot length, seedling length and seed vigor indicese0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“germination rate and percentage, rootlength, shoot length, seedling length and seed vigor indices were decreased by increasingthe concentrations of salinity and drought treatments”
e1“growth indices of Agropyron desertorum”
Claim · model-written summary
Increasing drought reduced root, shoot and seedling length and seed vigor.
- Taxon
- Agropyron desertorumAgropyron desertorume1
- Treatment
- droughte0
- Outcome
- rootlength, shoot length, seedling length and seed vigor indicese0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“germination rate and percentage, rootlength, shoot length, seedling length and seed vigor indices were decreased by increasingthe concentrations of salinity and drought treatments”
e1“growth indices of Agropyron desertorum”
Claim · model-written summary
Germination stopped completely at a drought level of -0.6 MP.
- Taxon
- Agropyron desertorumAgropyron desertorume1
- Treatment
- φs = -0.6 MPe0
- Outcome
- germinatione0
- Direction
- stoppede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“germination at φs = -0.6 MP wascompletely stopped”
e1“growth indices of Agropyron desertorum”
The same questions in other papers
salinity · growth · Agropyron desertorumResults agree
1 paper in the same direction as this paper
- no effect
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.