Abstract
Drought causes significant damage to a high value crop of soybean. Europe has an increasing demand for soybean and its own production is insufficient. Selection and breeding of cultivars adapted to European growth conditions is therefore urgently needed. These new cultivars must have a shorter growing cycle (specifically for adaptation to North-West Europe), high yield potential under European growing conditions, and sufficient drought resistance. We have evaluated the performance of a diverse collection of 359 soybean accessions under drought stress using rain-out shelters for 2 years. The contrasting weather conditions between years and correspondingly the varying plant responses demonstrated that the consequences of drought for an individual accession can vary strongly depending on the characteristics (e.g., duration and intensity) of the drought period. Short duration drought stress, for a period of four to 7 weeks, caused an average reduction of 11% in maximum canopy height (CH), a reduction of 17% in seed number per plant (SN) and a reduction of 16% in seed weight per plant (SW). Long duration drought stress caused an average reduction of 29% in CH, a reduction of 38% in SN and a reduction of 43% in SW. Drought accelerated plant development and caused an earlier cessation of flowering and pod formation. This seemed to help some accessions to better protect the seed yield, under short duration drought stress. Drought resistance for yield-related traits was associated with the maintenance of growth under long duration drought stress. The collection displayed a broad range of variation for canopy wilting and leaf senescence but a very narrow range of variation for crop water stress index (CWSI; derived from canopy temperature data). To the best of our knowledge this is the first study reporting a detailed investigation of the response to drought within a diverse soybean collection relevant for breeding in Europe.
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Claims 13
Claim · model-written summary
Short duration drought caused a reduction of 11% in maximum canopy height of soybean
- Taxon
- soybean
Glycine maxe1 - Material
- 359 soybean accessionse2
- Treatment
- Short duration drought stresse3
- Outcome
- maximum canopy heighte3
- Direction
- reductione3
- Value
- 11%e3
- Setting
- rain-out shelterse2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Drought causes significant damage to a high value crop of soybean”
e2“We have evaluated the performance of a diverse collection of 359 soybean accessions under drought stress using rain-out shelters for 2 years”
e3“Short duration drought stress, for a period of four to 7 weeks, caused an average reduction of 11% in maximum canopy height (CH), a reduction of 17% in seed number per plant (SN) and a reduction of 16% in seed weight per plant (SW)”
Claim · model-written summary
Short duration drought caused a reduction of 17% in seed number per plant of soybean
- Taxon
- soybeanGlycine maxe1
- Material
- 359 soybean accessionse2
- Treatment
- Short duration drought stresse3
- Outcome
- seed number per plante3
- Direction
- reductione3
- Value
- 17%e3
- Setting
- rain-out shelterse2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Drought causes significant damage to a high value crop of soybean”
e2“We have evaluated the performance of a diverse collection of 359 soybean accessions under drought stress using rain-out shelters for 2 years”
e3“Short duration drought stress, for a period of four to 7 weeks, caused an average reduction of 11% in maximum canopy height (CH), a reduction of 17% in seed number per plant (SN) and a reduction of 16% in seed weight per plant (SW)”
Claim · model-written summary
Short duration drought caused a reduction of 16% in seed weight per plant of soybean
- Taxon
- soybeanGlycine maxe1
- Material
- 359 soybean accessionse2
- Treatment
- Short duration drought stresse3
- Outcome
- seed weight per plante3
- Direction
- reductione3
- Value
- 16%e3
- Setting
- rain-out shelterse2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Drought causes significant damage to a high value crop of soybean”
e2“We have evaluated the performance of a diverse collection of 359 soybean accessions under drought stress using rain-out shelters for 2 years”
e3“Short duration drought stress, for a period of four to 7 weeks, caused an average reduction of 11% in maximum canopy height (CH), a reduction of 17% in seed number per plant (SN) and a reduction of 16% in seed weight per plant (SW)”
Claim · model-written summary
Long duration drought caused a reduction of 29% in CH of soybean
- Taxon
- soybeanGlycine maxe1
- Treatment
- Long duration drought stresse4
- Outcome
- CHe4
- Direction
- reductione4
- Value
- 29%e4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Drought causes significant damage to a high value crop of soybean”
e4“Long duration drought stress caused an average reduction of 29% in CH, a reduction of 38% in SN and a reduction of 43% in SW”
Claim · model-written summary
Long duration drought caused a reduction of 38% in SN of soybean
- Taxon
- soybeanGlycine maxe1
- Treatment
- Long duration drought stresse4
- Outcome
- SNe4
- Direction
- reductione4
- Value
- 38%e4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Drought causes significant damage to a high value crop of soybean”
e4“Long duration drought stress caused an average reduction of 29% in CH, a reduction of 38% in SN and a reduction of 43% in SW”
Claim · model-written summary
Long duration drought caused a reduction of 43% in SW of soybean
- Taxon
- soybeanGlycine maxe1
- Treatment
- Long duration drought stresse4
- Outcome
- SWe4
- Direction
- reductione4
- Value
- 43%e4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Drought causes significant damage to a high value crop of soybean”
e4“Long duration drought stress caused an average reduction of 29% in CH, a reduction of 38% in SN and a reduction of 43% in SW”
Claim · model-written summary
Drought accelerated plant development in soybean
- Taxon
- soybeanGlycine maxe1
- Treatment
- Droughte5
- Outcome
- plant developmente5
- Direction
- acceleratede5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Drought causes significant damage to a high value crop of soybean”
e5“Drought accelerated plant development and caused an earlier cessation of flowering and pod formation”
Claim · model-written summary
Drought caused an earlier cessation of flowering and pod formation in soybean
- Taxon
- soybeanGlycine maxe1
- Treatment
- Droughte5
- Outcome
- cessation of flowering and pod formatione5
- Direction
- earliere5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Drought causes significant damage to a high value crop of soybean”
e5“Drought accelerated plant development and caused an earlier cessation of flowering and pod formation”
Claim · model-written summary
Earlier flowering cessation may help some soybean accessions better protect seed yield under short duration drought
- Taxon
- soybeanGlycine maxe1
- Treatment
- short duration drought stresse6
- Outcome
- seed yielde6
- Qualifier
- some accessionse6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Drought causes significant damage to a high value crop of soybean”
e6“This seemed to help some accessions to better protect the seed yield, under short duration drought stress”
Claim · model-written summary
Drought resistance for yield-related traits in soybean was associated with maintained growth under long duration drought
- Taxon
- soybeanGlycine maxe1
- Treatment
- long duration drought stresse7
- Outcome
- yield-related traitse7
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Drought causes significant damage to a high value crop of soybean”
e7“Drought resistance for yield-related traits was associated with the maintenance of growth under long duration drought stress”
Claim · model-written summary
The soybean collection showed a broad range of variation for canopy wilting and leaf senescence
- Taxon
- soybeanGlycine maxe2
- Outcome
- canopy wilting and leaf senescencee6
- Qualifier
- broad range of variatione6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“We have evaluated the performance of a diverse collection of 359 soybean accessions under drought stress using rain-out shelters for 2 years”
e6“The collection displayed a broad range of variation for canopy wilting and leaf senescence but a very narrow range of variation for crop water stress index (CWSI; derived from canopy temperature data)”
Claim · model-written summary
The soybean collection showed a very narrow range of variation for crop water stress index
- Taxon
- soybeanGlycine maxe2
- Outcome
- crop water stress indexe6
- Qualifier
- very narrow range of variatione6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“We have evaluated the performance of a diverse collection of 359 soybean accessions under drought stress using rain-out shelters for 2 years”
e6“The collection displayed a broad range of variation for canopy wilting and leaf senescence but a very narrow range of variation for crop water stress index (CWSI; derived from canopy temperature data)”
Claim · model-written summary
Drought consequences for an individual soybean accession vary strongly with drought duration and intensity
- Taxon
- soybeanGlycine maxe2
- Outcome
- consequences of drought for an individual accessione7
- Qualifier
- depending on the characteristics (e.g., duration and intensity) of the drought periode7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“We have evaluated the performance of a diverse collection of 359 soybean accessions under drought stress using rain-out shelters for 2 years”
e7“The contrasting weather conditions between years and correspondingly the varying plant responses demonstrated that the consequences of drought for an individual accession can vary strongly depending on the characteristics (e.g., duration and intensity) of the drought period”
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