Abstract
White clover (Trifolium repens L.) is an important pasture legume in temperate regions, but growth is often strongly reduced under summer drought. Cloned individuals from a full-sib progeny of a pair cross between two phenotypically distinct white clover populations were exposed to water deficit in pots under outdoor conditions for 9 weeks, while control pots were maintained at field capacity. Water deficit decreased leaf water potential by more than 50% overall, but increased the levels of the flavonol glycosides of quercetin (Q) and the ratio of quercetin and kaempferol glycosides (QKR) by 111% and by 90%, respectively. Water deficit reduced dry matter (DM) by 21%, with the most productive genotypes in the controls showing the greatest proportional reduction. The full-sib progeny displayed a significant increase in the root:shoot ratio by 53% under water deficit. Drought-induced changes in plant morphology were associated with changes in Q, but not kaempferol (K) glycosides. The genotypes with high QKR levels reduced their DM production least under water deficit and increased their Q glycoside levels and QKR most. These data show, at the individual genotype level, that increased Q glycoside accumulation in response to water deficit stress can be positively associated with retaining higher levels of DM production.
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Claims 10
Claim · model-written summary
Water deficit decreased leaf water potential in white clover by more than 50% overall.
- Taxon
- White clover
Trifolium repense1 - Treatment
- Water deficite2
- Outcome
- leaf water potentiale2
- Direction
- decreasede2
- Value
- more than 50%e2
- Comparator
- control potse3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“White clover (Trifolium repens L.) is an important pasture legume in temperate regions”
e2“Water deficit decreased leaf water potential by more than 50% overall”
e3“exposed to water deficit in pots under outdoor conditions for 9 weeks, while control pots were maintained at field capacity”
Claim · model-written summary
Water deficit increased the levels of flavonol glycosides of quercetin (Q) by 111%.
- Taxon
- White cloverTrifolium repense1
- Treatment
- Water deficite2
- Outcome
- levels of the flavonol glycosides of quercetin (Q)e4
- Direction
- increasede4
- Value
- 111%e4
- Comparator
- control potse3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“White clover (Trifolium repens L.) is an important pasture legume in temperate regions”
e2“Water deficit decreased leaf water potential by more than 50% overall”
e3“exposed to water deficit in pots under outdoor conditions for 9 weeks, while control pots were maintained at field capacity”
e4“increased the levels of the flavonol glycosides of quercetin (Q) and the ratio of quercetin and kaempferol glycosides (QKR) by 111% and by 90%, respectively”
Claim · model-written summary
Water deficit increased the ratio of quercetin and kaempferol glycosides (QKR) by 90%.
- Taxon
- White cloverTrifolium repense1
- Treatment
- Water deficite2
- Outcome
- ratio of quercetin and kaempferol glycosides (QKR)e4
- Direction
- increasede4
- Value
- 90%e4
- Comparator
- control potse3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“White clover (Trifolium repens L.) is an important pasture legume in temperate regions”
e2“Water deficit decreased leaf water potential by more than 50% overall”
e3“exposed to water deficit in pots under outdoor conditions for 9 weeks, while control pots were maintained at field capacity”
e4“increased the levels of the flavonol glycosides of quercetin (Q) and the ratio of quercetin and kaempferol glycosides (QKR) by 111% and by 90%, respectively”
Claim · model-written summary
Water deficit reduced dry matter of white clover by 21%.
- Taxon
- White cloverTrifolium repense1
- Treatment
- Water deficite5
- Outcome
- dry matter (DM)e5
- Direction
- reducede5
- Value
- 21%e5
- Comparator
- the controlse5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“White clover (Trifolium repens L.) is an important pasture legume in temperate regions”
e5“Water deficit reduced dry matter (DM) by 21%, with the most productive genotypes in the controls showing the greatest proportional reduction”
Claim · model-written summary
The most productive genotypes in the controls showed the greatest proportional reduction in dry matter under water deficit.
- Taxon
- White cloverTrifolium repense1
- Material
- most productive genotypes in the controlse5
- Treatment
- Water deficite5
- Outcome
- proportional reductione5
- Direction
- greateste5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“White clover (Trifolium repens L.) is an important pasture legume in temperate regions”
e5“Water deficit reduced dry matter (DM) by 21%, with the most productive genotypes in the controls showing the greatest proportional reduction”
Claim · model-written summary
The full-sib progeny showed a significant 53% increase in root:shoot ratio under water deficit.
- Taxon
- White cloverTrifolium repense1
- Material
- full-sib progenye6
- Treatment
- water deficite6
- Outcome
- root:shoot ratioe6
- Direction
- increasee6
- Value
- 53%e6
- Comparator
- control potse3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“White clover (Trifolium repens L.) is an important pasture legume in temperate regions”
e3“exposed to water deficit in pots under outdoor conditions for 9 weeks, while control pots were maintained at field capacity”
e6“The full-sib progeny displayed a significant increase in the root:shoot ratio by 53% under water deficit”
Claim · model-written summary
Drought-induced changes in plant morphology were associated with changes in Q glycosides but not kaempferol glycosides.
- Taxon
- White cloverTrifolium repense1
- Compound
- Qe7
- Outcome
- changes in plant morphologye7
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“White clover (Trifolium repens L.) is an important pasture legume in temperate regions”
e7“Drought-induced changes in plant morphology were associated with changes in Q, but not kaempferol (K) glycosides”
Claim · model-written summary
Genotypes with high QKR levels reduced their dry matter production least under water deficit.
- Taxon
- White cloverTrifolium repense1
- Material
- genotypes with high QKR levelse2
- Treatment
- water deficite2
- Outcome
- DM productione2
- Direction
- leaste2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“White clover (Trifolium repens L.) is an important pasture legume in temperate regions”
e2“The genotypes with high QKR levels reduced their DM production least under water deficit and increased their Q glycoside levels and QKR most”
Claim · model-written summary
Genotypes with high QKR levels increased their Q glycoside levels most under water deficit.
- Taxon
- White cloverTrifolium repense1
- Material
- genotypes with high QKR levelse2
- Treatment
- water deficite2
- Outcome
- Q glycoside levelse2
- Direction
- increasede2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“White clover (Trifolium repens L.) is an important pasture legume in temperate regions”
e2“The genotypes with high QKR levels reduced their DM production least under water deficit and increased their Q glycoside levels and QKR most”
Claim · model-written summary
Increased Q glycoside accumulation under water deficit stress can be positively associated with retaining higher dry matter production.
- Taxon
- White cloverTrifolium repense1
- Treatment
- water deficit stresse2
- Compound
- Q glycoside accumulatione2
- Outcome
- retaining higher levels of DM productione2
- Direction
- positively associatede2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“White clover (Trifolium repens L.) is an important pasture legume in temperate regions”
e2“These data show, at the individual genotype level, that increased Q glycoside accumulation in response to water deficit stress can be positively associated with retaining higher levels of DM production”
The same questions in other papers
drought · growth · Trifolium repens (white clover)Results differ
20 papers in the same direction as this paper · 7 in the opposite direction
- positive
- negative
- negative
24 papers more in this group
See all 28 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.