Abstract
Chloris gayana is a warm-season grass, often cultivated in areas where soil salinity is a major constraint for forage production. Five cultivars (2 unselected populations and 3 synthetic varieties) were evaluated through agronomic traits as well as Inter Simple Sequence Repeats (ISSRs) and Sequence-related Amplified Polymorphism (SRAP) molecular markers. The consensus between both agronomic and molecular data sets was high (>99%) suggesting that both systems provided similar estimates of genetic relationships. The analysis revealed that synthetic varieties, Finecut, Topcut and Santana, were the most genetically different cultivars, whereas the unselected populations, Pioneer and Katambora, were closely related. Responses to salinity stress during germination and early vegetative growth stages were evaluated in only the synthetic varieties. The results showed that Finecut and Santana were able to germinate in the same proportion as controls even at concentrations of 200 mM NaCl. Under hydroponic conditions, Santana attained approximately 20% higher total dry weight than the other 2 varieties and the longest roots. Finecut presented the highest root dry weight. These results suggested that Santana and Finecut showed high salinity tolerance at germination and early vegetative growth stages, both crucial phases when seeking a successful pasture establishment, particularly in saline environments. Further studies in the field are needed to determine if these hydroponic results are reproduced under field conditions.
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Claims 8
Claim · model-written summary
Agronomic and molecular data gave highly concordant cultivar relationship estimates.
- Taxon
- Chloris gayana
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Chloris gayanat0 - Outcome
- consensus between both agronomic and molecular data setse0
- Value
- >99%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
%2C_Mexico.jpg?width=500)
Verbatim
e0“The consensus between both agronomic and molecular data sets was high (>99%)”
t0“Chloris gayana”
Claim · model-written summary
Finecut, Topcut and Santana were the most genetically different cultivars.
- Taxon
- Chloris gayanaChloris gayanat0
- Material
- Finecut, Topcut and Santanae0
- Outcome
- most genetically different cultivarse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“synthetic varieties, Finecut, Topcut and Santana, were the most genetically different cultivars”
t0“Chloris gayana”
Claim · model-written summary
Pioneer and Katambora were closely related.
- Taxon
- Chloris gayanaChloris gayanat0
- Material
- Pioneer and Katamborae0
- Outcome
- closely relatede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“unselected populations, Pioneer and Katambora, were closely related”
t0“Chloris gayana”
Claim · model-written summary
Finecut germinated at the control proportion even at 200 mM NaCl.
- Taxon
- Chloris gayanaChloris gayanat0
- Material
- Finecute0
- Treatment
- 200 mM NaCle0
- Outcome
- germinate in the same proportione0
- Direction
- same proportione0
- Comparator
- controlse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Finecut and Santana were able to germinate in the same proportion as controls even at concentrations of 200 mM NaCl”
t0“Chloris gayana”
Claim · model-written summary
Santana germinated at the control proportion even at 200 mM NaCl.
- Taxon
- Chloris gayanaChloris gayanat0
- Material
- Santanae0
- Treatment
- 200 mM NaCle0
- Outcome
- germinate in the same proportione0
- Direction
- same proportione0
- Comparator
- controlse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Finecut and Santana were able to germinate in the same proportion as controls even at concentrations of 200 mM NaCl”
t0“Chloris gayana”
Claim · model-written summary
Santana had approximately 20% higher total dry weight than the other two varieties in hydroponics.
- Taxon
- Chloris gayanaChloris gayanat0
- Material
- Santanae0
- Outcome
- total dry weighte0
- Direction
- highere0
- Value
- approximately 20%e0
- Comparator
- the other 2 varietiese0
- Setting
- hydroponic conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under hydroponic conditions, Santana attained approximately 20% higher total dry weight than the other 2 varieties”
t0“Chloris gayana”
Claim · model-written summary
Santana had the longest roots under hydroponic conditions.
- Taxon
- Chloris gayanaChloris gayanat0
- Material
- Santanae0
- Outcome
- longest rootse0
- Direction
- longeste0
- Setting
- hydroponic conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under hydroponic conditions, Santana attained approximately 20% higher total dry weight than the other 2 varieties and the longest roots”
t0“Chloris gayana”
Claim · model-written summary
Finecut had the highest root dry weight.
- Taxon
- Chloris gayanaChloris gayanat0
- Material
- Finecute0
- Outcome
- root dry weighte0
- Direction
- higheste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Finecut presented the highest root dry weight”
t0“Chloris gayana”
The same questions in other papers
sodium chloride · growth · Chloris gayanaPositive and negative results
2 in the opposite direction
- negative
- negative
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.