Abstract
Foliar carbon isotope composition(δ 13C), total biomass and long_term water use efficiency(WUE L) of 12 Populus deltoides clones were studied under water stress in the greenhouse. Total biomass of clones decreased greatly while δ 13C increased. The single element (clones) variance analysis and multiple comparison of WUE L under same water treatment indicated that the difference between clones was significant, J 2, J 6, J 7, J 8, J 9 were excellent clones with high WUE L. The significant differences between water treatments and clones were showed by two elements variance analysis of δ 13C, and water was proved to be the primary factor which affected δ 13C under water stress by the comparison of MS(Mean Square) and F value. Under same water treatment, our results also indicated that there was a good positive correlation between δ 13C and WUE L, high WUE L always went with high δ 13C, and δ 13C may be a credible indirect index on estimating WUE L between P. deltoides clones.
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Claims 9
Claim · model-written summary
Water stress greatly decreased total biomass of Populus deltoides clones.
- Taxon
- Populus deltoides
Populus deltoidese0 - Material
- clonese0
- Treatment
- water stresse0
- Outcome
- Total biomasse1
- Direction
- decreasede1
- Setting
- greenhousee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Foliar carbon isotope composition(δ 13C), total biomass and long_term water use efficiency(WUE L) of 12 Populus deltoides clones were studied under water stress in the greenhouse.”
e1“Total biomass of clones decreased greatly while δ 13C increased.”
Claim · model-written summary
Water stress increased foliar δ 13C in Populus deltoides clones.
- Taxon
- Populus deltoidesPopulus deltoidese0
- Organ / stage
- Foliare0
- Treatment
- water stresse0
- Outcome
- δ 13Ce1
- Direction
- increasede1
- Setting
- greenhousee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Foliar carbon isotope composition(δ 13C), total biomass and long_term water use efficiency(WUE L) of 12 Populus deltoides clones were studied under water stress in the greenhouse.”
e1“Total biomass of clones decreased greatly while δ 13C increased.”
Claim · model-written summary
WUE L differed significantly among Populus deltoides clones under the same water treatment.
- Taxon
- Populus deltoidesPopulus deltoidese0
- Material
- clonese1
- Treatment
- same water treatmente1
- Outcome
- WUE Le1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Foliar carbon isotope composition(δ 13C), total biomass and long_term water use efficiency(WUE L) of 12 Populus deltoides clones were studied under water stress in the greenhouse.”
e1“The single element (clones) variance analysis and multiple comparison of WUE L under same water treatment indicated that the difference between clones was significant, J 2, J 6, J 7, J 8, J 9 were excellent clones with high WUE L.”
Claim · model-written summary
J 2, J 6, J 7, J 8 and J 9 were high WUE L clones.
- Taxon
- Populus deltoidesPopulus deltoidese0
- Material
- J 2, J 6, J 7, J 8, J 9e1
- Outcome
- WUE Le1
- Direction
- highe1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Foliar carbon isotope composition(δ 13C), total biomass and long_term water use efficiency(WUE L) of 12 Populus deltoides clones were studied under water stress in the greenhouse.”
e1“The single element (clones) variance analysis and multiple comparison of WUE L under same water treatment indicated that the difference between clones was significant, J 2, J 6, J 7, J 8, J 9 were excellent clones with high WUE L.”
Claim · model-written summary
Foliar δ 13C differed significantly between water treatments.
- Taxon
- Populus deltoidesPopulus deltoidese0
- Treatment
- water treatmentse1
- Outcome
- δ 13Ce1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Foliar carbon isotope composition(δ 13C), total biomass and long_term water use efficiency(WUE L) of 12 Populus deltoides clones were studied under water stress in the greenhouse.”
e1“The significant differences between water treatments and clones were showed by two elements variance analysis of δ 13C, and water was proved to be the primary factor which affected δ 13C under water stress by the comparison of MS(Mean Square) and F value.”
Claim · model-written summary
Foliar δ 13C differed significantly among clones.
- Taxon
- Populus deltoidesPopulus deltoidese0
- Material
- clonese1
- Outcome
- δ 13Ce1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Foliar carbon isotope composition(δ 13C), total biomass and long_term water use efficiency(WUE L) of 12 Populus deltoides clones were studied under water stress in the greenhouse.”
e1“The significant differences between water treatments and clones were showed by two elements variance analysis of δ 13C, and water was proved to be the primary factor which affected δ 13C under water stress by the comparison of MS(Mean Square) and F value.”
Claim · model-written summary
Water was identified as the primary factor affecting δ 13C under water stress.
- Taxon
- Populus deltoidesPopulus deltoidese0
- Treatment
- watere1
- Outcome
- δ 13Ce1
- Qualifier
- primary factore1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Foliar carbon isotope composition(δ 13C), total biomass and long_term water use efficiency(WUE L) of 12 Populus deltoides clones were studied under water stress in the greenhouse.”
e1“The significant differences between water treatments and clones were showed by two elements variance analysis of δ 13C, and water was proved to be the primary factor which affected δ 13C under water stress by the comparison of MS(Mean Square) and F value.”
Claim · model-written summary
δ 13C and WUE L were positively correlated under the same water treatment.
- Taxon
- Populus deltoidesPopulus deltoidese0
- Treatment
- same water treatmente1
- Outcome
- δ 13C and WUE Le1
- Direction
- positivee1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Foliar carbon isotope composition(δ 13C), total biomass and long_term water use efficiency(WUE L) of 12 Populus deltoides clones were studied under water stress in the greenhouse.”
e1“Under same water treatment, our results also indicated that there was a good positive correlation between δ 13C and WUE L, high WUE L always went with high δ 13C, and δ 13C may be a credible indirect index on estimating WUE L between P. deltoides clones.”
Claim · model-written summary
The authors propose δ 13C as an indirect index for estimating WUE L among clones.
- Taxon
- Populus deltoidesPopulus deltoidese0
- Outcome
- indirect index on estimating WUE Le1
- Qualifier
- may be a crediblee1
- Comparator
- between P. deltoides clonese1
Not reportedValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Foliar carbon isotope composition(δ 13C), total biomass and long_term water use efficiency(WUE L) of 12 Populus deltoides clones were studied under water stress in the greenhouse.”
e1“Under same water treatment, our results also indicated that there was a good positive correlation between δ 13C and WUE L, high WUE L always went with high δ 13C, and δ 13C may be a credible indirect index on estimating WUE L between P. deltoides clones.”
The same questions in other papers
drought · growth · Populus deltoidesResults agree
4 papers in the same direction as this paper
- negative
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1 paper more in this group
See all 5 papers →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.