Abstract
Abstract Salinisation caused by irrigation is threatening the forage yield of lucerne pasture in the arid and semi‐arid areas of west China. To select lucerne cultivars with good salt tolerance, the relative salt tolerance of five lucerne cultivars was assessed based upon shoot dry weight, shoot KV Na + ratio, leaf malondialdehyde (MDA) content and relative membrane permeability (RMP) at the seedling stage. NaCl reduced the shoot dry weight and shoot K + /Na + ratio, and enhanced the leaf MDA content and RMP in all cultivars, but the degree of either reduction or enhancement differed between these lucerne cultivars. Under 200 m M NaCl for 5 days, ‘Rambler’ had significantly greater shoot dry weight (only dropped 17.2% to 0.17 g plant ‐1 ) than other cultivars, and also maintained a better ion status, with higher K + content, lower Na + content, and thus a higher relative shoot K + /Na + ratio. ‘Daye’ was healthier because neither the MDA content nor the RMP was significantly increased in its leaves. Through combining the relative values of these indicators, the relative salt tolerance of the five cultivars decreased in the order: ‘Rambler’, ‘Daye’, ‘Sandili’, ‘Gannong No.3’, and ‘Longdong’. This study indicated that ‘Rambler’ and ‘Daye’ might be suitable for pasture establishment on irrigated land in arid and semi‐arid areas of west China.
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Claims 12
Claim · model-written summary
NaCl reduced shoot dry weight in all cultivars.
- Taxon
- lucerne
Medicago sativat0 - Treatment
- NaCle0
- Outcome
- shoot dry weighte0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“NaCl reduced the shoot dry weight and shoot K + /Na + ratio”
t0“lucerne ( Medicago sativa L.)”
Claim · model-written summary
NaCl reduced shoot K + /Na + ratio in all cultivars.
- Taxon
- lucerneMedicago sativat0
- Treatment
- NaCle0
- Outcome
- shoot K + /Na + ratioe0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“NaCl reduced the shoot dry weight and shoot K + /Na + ratio”
t0“lucerne ( Medicago sativa L.)”
Claim · model-written summary
NaCl enhanced leaf MDA content and relative membrane permeability in all cultivars.
- Taxon
- lucerneMedicago sativat0
- Treatment
- NaCle1
- Outcome
- leaf MDA content and RMPe0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“enhanced the leaf MDA content and RMP in all cultivars”
t0“lucerne ( Medicago sativa L.)”
e1“NaCl reduced the shoot dry weight and shoot K + /Na + ratio”
Claim · model-written summary
The salt response differed between lucerne cultivars.
- Taxon
- lucerneMedicago sativat0
- Outcome
- degree of either reduction or enhancement differede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the degree of either reduction or enhancement differed between these lucerne cultivars”
t0“lucerne ( Medicago sativa L.)”
Claim · model-written summary
Under NaCl, Rambler retained significantly greater shoot dry weight than other cultivars, falling 17.2% to 0.17 g per plant.
- Taxon
- lucerneMedicago sativat0
- Material
- ‘Rambler’e0
- Treatment
- 200 m M NaCl for 5 dayse0
- Outcome
- shoot dry weighte0
- Direction
- greatere0
- Value
- 17.2% to 0.17 g plant ‐1e0
- Comparator
- other cultivarse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under 200 m M NaCl for 5 days, ‘Rambler’ had significantly greater shoot dry weight (only dropped 17.2% to 0.17 g plant ‐1 ) than other cultivars”
t0“lucerne ( Medicago sativa L.)”
Claim · model-written summary
Under NaCl, Rambler had higher K content.
- Taxon
- lucerneMedicago sativat0
- Material
- ‘Rambler’e0
- Outcome
- K + contente0
- Direction
- highere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“‘Rambler’ had significantly greater shoot dry weight (only dropped 17.2% to 0.17 g plant ‐1 ) than other cultivars, and also maintained a better ion status, with higher K + content, lower Na + content, and thus a higher relative shoot K + /Na + ratio”
t0“lucerne ( Medicago sativa L.)”
Claim · model-written summary
Under NaCl, Rambler had lower Na content.
- Taxon
- lucerneMedicago sativat0
- Material
- ‘Rambler’e1
- Outcome
- Na + contente0
- Direction
- lowere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“with higher K + content, lower Na + content, and thus a higher relative shoot K + /Na + ratio”
t0“lucerne ( Medicago sativa L.)”
e1“‘Rambler’ had significantly greater shoot dry weight”
Claim · model-written summary
Under NaCl, Rambler had a higher relative shoot K/Na ratio.
- Taxon
- lucerneMedicago sativat0
- Material
- ‘Rambler’e1
- Outcome
- relative shoot K + /Na + ratioe0
- Direction
- highere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“with higher K + content, lower Na + content, and thus a higher relative shoot K + /Na + ratio”
t0“lucerne ( Medicago sativa L.)”
e1“‘Rambler’ had significantly greater shoot dry weight”
Claim · model-written summary
Daye leaf MDA content did not increase significantly.
- Taxon
- lucerneMedicago sativat0
- Material
- ‘Daye’e0
- Treatment
- NaCle1
- Outcome
- MDA contente0
- Direction
- neither the MDA content nor the RMP was significantly increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“‘Daye’ was healthier because neither the MDA content nor the RMP was significantly increased in its leaves”
t0“lucerne ( Medicago sativa L.)”
e1“NaCl reduced the shoot dry weight and shoot K + /Na + ratio”
Claim · model-written summary
Daye leaf RMP did not increase significantly.
- Taxon
- lucerneMedicago sativat0
- Material
- ‘Daye’e0
- Treatment
- NaCle1
- Outcome
- RMPe0
- Direction
- neither the MDA content nor the RMP was significantly increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“‘Daye’ was healthier because neither the MDA content nor the RMP was significantly increased in its leaves”
t0“lucerne ( Medicago sativa L.)”
e1“NaCl reduced the shoot dry weight and shoot K + /Na + ratio”
Claim · model-written summary
Relative salt tolerance ranked Rambler, Daye, Sandili, Gannong No.3, then Longdong.
- Taxon
- lucerneMedicago sativat0
- Outcome
- relative salt tolerancee0
- Direction
- decreasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the relative salt tolerance of the five cultivars decreased in the order: ‘Rambler’, ‘Daye’, ‘Sandili’, ‘Gannong No.3’, and ‘Longdong’”
t0“lucerne ( Medicago sativa L.)”
Claim · model-written summary
The authors suggest Rambler and Daye for pasture establishment on irrigated land in arid and semi-arid west China.
- Taxon
- lucerneMedicago sativat0
- Material
- ‘Rambler’ and ‘Daye’e0
- Outcome
- pasture establishmente0
- Setting
- arid and semi‐arid areas of west Chinae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“‘Rambler’ and ‘Daye’ might be suitable for pasture establishment on irrigated land in arid and semi‐arid areas of west China”
t0“lucerne ( Medicago sativa L.)”
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