Abstract
Early vigor has been proposed as a favorable trait for cereals grown in drought-prone environments. This research aimed at characterizing early stage shoot and root growth of three Spanish barley landraces compared with three modern cultivars. Genotypes were grown in an automated phenotyping platform, GrowScreen-Rhizo, under well-watered and drought conditions. Seminal and lateral root length, root system width and depth were recorded automatically during the experiment. Drought induced greater growth reduction in shoots (43% dry weight reduction) than in roots (23% dry weight). Genotypic differences were larger under no stress, partly due to a more profuse growth of landraces in this treatment. Accession SBCC146 was the most vigorous for shoot growth, whereas SBCC073 diverted more assimilates to root growth. Among cultivars, Cierzo was the most vigorous one and Scarlett had the least root dry weight of all genotypes, under both conditions. Root growth was redirected to lateral roots when seminal roots could not progress further in dry soil. This study reveals the presence of genetic diversity in dynamics of early growth of barley. The different patterns of growth observed for SBCC073 and SBCC146 should be explored further, to test if they affect field performance of barley in drought-prone environments.
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Claims 9
Claim · model-written summary
Drought reduced shoot dry weight by 43% relative to well-watered conditions in barley.
- Taxon
- Barley
.jpg?width=60)
Hordeum vulgaret0 - Organ / stage
- shootse0
- Treatment
- Droughte0
- Outcome
- dry weighte0
- Direction
- reductione0
- Value
- 43%e0
- Comparator
- well-waterede1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“Drought induced greater growth reduction in shoots (43% dry weight reduction) than in roots (23% dry weight)”
e1“under well-watered and drought conditions”
t0“Barley”
Claim · model-written summary
Drought reduced root dry weight by 23% relative to well-watered conditions, a smaller reduction than in shoots.
- Taxon
- BarleyHordeum vulgaret0
- Organ / stage
- rootse0
- Treatment
- Droughte0
- Outcome
- dry weighte0
- Direction
- reductione0
- Value
- 23%e0
- Comparator
- well-waterede1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Drought induced greater growth reduction in shoots (43% dry weight reduction) than in roots (23% dry weight)”
e1“under well-watered and drought conditions”
t0“Barley”
Claim · model-written summary
Genotypic differences in growth were larger under no stress, partly because landraces grew more profusely in that treatment.
- Taxon
- BarleyHordeum vulgaret0
- Outcome
- Genotypic differencese0
- Direction
- largere0
- Qualifier
- under no stresse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Genotypic differences were larger under no stress, partly due to a more profuse growth of landraces in this treatment”
t0“Barley”
Claim · model-written summary
Accession SBCC146 was the most vigorous genotype for shoot growth.
- Taxon
- BarleyHordeum vulgaret0
- Material
- SBCC146e0
- Outcome
- shoot growthe0
- Direction
- most vigorouse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Accession SBCC146 was the most vigorous for shoot growth”
t0“Barley”
Claim · model-written summary
Accession SBCC073 diverted more assimilates to root growth.
- Taxon
- BarleyHordeum vulgaret0
- Material
- SBCC073e0
- Outcome
- assimilates to root growthe0
- Direction
- moree0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“SBCC073 diverted more assimilates to root growth”
t0“Barley”
Claim · model-written summary
Among the modern cultivars, Cierzo was the most vigorous.
- Taxon
- BarleyHordeum vulgaret0
- Material
- Cierzoe0
- Outcome
- vigorouse0
- Direction
- most vigorouse0
- Qualifier
- Among cultivarse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Among cultivars, Cierzo was the most vigorous one”
t0“Barley”
Claim · model-written summary
Cultivar Scarlett had the least root dry weight of all genotypes under both well-watered and drought conditions.
- Taxon
- BarleyHordeum vulgaret0
- Material
- Scarlette0
- Outcome
- root dry weighte0
- Direction
- leaste0
- Qualifier
- under both conditionse0
- Comparator
- all genotypese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Scarlett had the least root dry weight of all genotypes, under both conditions”
t0“Barley”
Claim · model-written summary
Root growth was redirected to lateral roots when seminal roots could not progress further in dry soil.
- Taxon
- BarleyHordeum vulgaret0
- Organ / stage
- lateral rootse0
- Outcome
- Root growth was redirected to lateral rootse0
- Qualifier
- seminal roots could not progress further in dry soile0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Root growth was redirected to lateral roots when seminal roots could not progress further in dry soil”
t0“Barley”
Claim · model-written summary
The study reveals genetic diversity in the dynamics of early growth of barley.
- Taxon
- barleyHordeum vulgaree0
- Outcome
- genetic diversity in dynamics of early growthe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This study reveals the presence of genetic diversity in dynamics of early growth of barley”
The same questions in other papers
drought · growth · Hordeum vulgare (barley)Positive and negative results
89 papers in the same direction as this paper · 15 in the opposite direction
- negative
- negative
- positive
101 papers more in this group
See all 105 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.