Abstract
Global food security has been disturbed by global climatic changes and increasing human population around the world. Heat stress is one of most imperative abiotic stress factors that limit barley productivity and production. Herein, three different field screening locations were carried out at Sakha, Mallawi and New-valley research stations, to identify the phenotypic and the genotypic diversity of ten Egyptian barley cultivars during two consecutive seasons 2019/2020 and 2020/2021 under different temperatures degrees. phenotypic diversity was evaluated by using some agro-physiological and grain quality characters which were contributing to yield under heat stress. Genotypic diversity was evaluated by using Sequence related amplified polymorphism (SRAP) markers as molecular identification. The results showed that high temperature enhancement all the cultivars to accelerate flowering by an average (11.39 %) and induce proline content, catalases, peroxidase enzyme active, crude protein content to increasing by average values (79.95, 40.74, 76.42 and 8.20%) respectively. However, it had a negative effect on the remaining characters.Giza 124, Giza 134, Giza 138, and Giza 132 gave high mean performance values of all measured characters being considered as heat tolerance cultivars. Ten SRAP combination primers were used where the percentage of polymorphism for each primer combination varied from 50.0% (me2+em5) to 83.3% (me5+em1). The highest polymorphism information content (PIC) was related to primer me5+em1 (0.399), indicating that this primer is highly informative to be used the barley genetic diversity for heat stress tolerance. A cluster heatmap showed that the ten barley cultivars were clustered into two main clusters, each cluster includes the most closed cultivars together due to their response to heat stress, which could be used as a source in future barley breeding programs for heat stress.
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Claims 14
Claim · model-written summary
High temperature accelerated barley flowering by 11.39% on average.
- Taxon
- barley
.jpg?width=60)
Hordeum vulgaret0 - Treatment
- high temperaturee0
- Outcome
- floweringe0
- Direction
- acceleratee0
- Value
- 11.39 %e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“high temperature enhancement all the cultivars to accelerate flowering by an average (11.39 %)”
t0“barley cultivars (Hordeum vulgare L.)”
Claim · model-written summary
High temperature increased proline content by 79.95% on average.
- Taxon
- barleyHordeum vulgaret0
- Treatment
- high temperaturee0
- Outcome
- proline contente0
- Direction
- increasinge0
- Value
- 79.95e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The results showed that high temperature enhancement all the cultivars to accelerate flowering by an average (11.39 %) and induce proline content, catalases, peroxidase enzyme active, crude protein content to increasing by average values (79.95, 40.74, 76.42 and 8.20%) respectively.”
t0“barley cultivars (Hordeum vulgare L.)”
Claim · model-written summary
High temperature increased catalases by 40.74% on average.
- Taxon
- barleyHordeum vulgaret0
- Treatment
- high temperaturee0
- Outcome
- catalasese0
- Direction
- increasinge0
- Value
- 40.74e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The results showed that high temperature enhancement all the cultivars to accelerate flowering by an average (11.39 %) and induce proline content, catalases, peroxidase enzyme active, crude protein content to increasing by average values (79.95, 40.74, 76.42 and 8.20%) respectively.”
t0“barley cultivars (Hordeum vulgare L.)”
Claim · model-written summary
High temperature increased peroxidase enzyme active by 76.42% on average.
- Taxon
- barleyHordeum vulgaret0
- Treatment
- high temperaturee0
- Outcome
- peroxidase enzyme activee0
- Direction
- increasinge0
- Value
- 76.42e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The results showed that high temperature enhancement all the cultivars to accelerate flowering by an average (11.39 %) and induce proline content, catalases, peroxidase enzyme active, crude protein content to increasing by average values (79.95, 40.74, 76.42 and 8.20%) respectively.”
t0“barley cultivars (Hordeum vulgare L.)”
Claim · model-written summary
High temperature increased crude protein content by 8.20% on average.
- Taxon
- barleyHordeum vulgaret0
- Treatment
- high temperaturee0
- Outcome
- crude protein contente0
- Direction
- increasinge0
- Value
- 8.20%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The results showed that high temperature enhancement all the cultivars to accelerate flowering by an average (11.39 %) and induce proline content, catalases, peroxidase enzyme active, crude protein content to increasing by average values (79.95, 40.74, 76.42 and 8.20%) respectively.”
t0“barley cultivars (Hordeum vulgare L.)”
Claim · model-written summary
High temperature negatively affected the remaining measured characters.
- Taxon
- barleyHordeum vulgaret0
- Treatment
- high temperaturee1
- Outcome
- remaining characterse0
- Direction
- negative effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“However, it had a negative effect on the remaining characters.”
e1“high temperature”
t0“barley cultivars (Hordeum vulgare L.)”
Claim · model-written summary
Giza 124 had high mean performance and was considered heat tolerant.
- Taxon
- barleyHordeum vulgaret0
- Material
- Giza 124e0
- Outcome
- high mean performance values of all measured characterse0
- Direction
- highe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Giza 124, Giza 134, Giza 138, and Giza 132 gave high mean performance values of all measured characters being considered as heat tolerance cultivars.”
t0“barley cultivars (Hordeum vulgare L.)”
Claim · model-written summary
Giza 134 had high mean performance and was considered heat tolerant.
- Taxon
- barleyHordeum vulgaret0
- Material
- Giza 134e0
- Outcome
- high mean performance values of all measured characterse0
- Direction
- highe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Giza 124, Giza 134, Giza 138, and Giza 132 gave high mean performance values of all measured characters being considered as heat tolerance cultivars.”
t0“barley cultivars (Hordeum vulgare L.)”
Claim · model-written summary
Giza 138 had high mean performance and was considered heat tolerant.
- Taxon
- barleyHordeum vulgaret0
- Material
- Giza 138e0
- Outcome
- high mean performance values of all measured characterse0
- Direction
- highe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Giza 124, Giza 134, Giza 138, and Giza 132 gave high mean performance values of all measured characters being considered as heat tolerance cultivars.”
t0“barley cultivars (Hordeum vulgare L.)”
Claim · model-written summary
Giza 132 had high mean performance and was considered heat tolerant.
- Taxon
- barleyHordeum vulgaret0
- Material
- Giza 132e0
- Outcome
- high mean performance values of all measured characterse0
- Direction
- highe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Giza 124, Giza 134, Giza 138, and Giza 132 gave high mean performance values of all measured characters being considered as heat tolerance cultivars.”
t0“barley cultivars (Hordeum vulgare L.)”
Claim · model-written summary
SRAP primer polymorphism ranged from 50.0% for me2+em5 to 83.3% for me5+em1.
- Taxon
- barleyHordeum vulgaret0
- Outcome
- percentage of polymorphisme0
- Value
- 50.0%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the percentage of polymorphism for each primer combination varied from 50.0% (me2+em5) to 83.3% (me5+em1)”
t0“barley cultivars (Hordeum vulgare L.)”
Claim · model-written summary
The highest PIC was 0.399 for primer me5+em1, indicating high informativeness for diversity assessment.
- Taxon
- barleyHordeum vulgaret0
- Outcome
- polymorphism information content (PIC)e0
- Direction
- higheste0
- Value
- 0.399e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest polymorphism information content (PIC) was related to primer me5+em1 (0.399), indicating that this primer is highly informative to be used the barley genetic diversity for heat stress tolerance.”
t0“barley cultivars (Hordeum vulgare L.)”
Claim · model-written summary
A cluster heatmap separated the ten barley cultivars into two clusters according to heat response.
- Taxon
- barleyHordeum vulgaret0
- Outcome
- clustered into two main clusterse0
- Value
- two main clusterse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A cluster heatmap showed that the ten barley cultivars were clustered into two main clusters, each cluster includes the most closed cultivars together due to their response to heat stress”
t0“barley cultivars (Hordeum vulgare L.)”
Claim · model-written summary
The heat-response clusters could be used in future barley breeding.
- Taxon
- barleyHordeum vulgaret0
- Outcome
- used as a source in future barley breeding programs for heat stresse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“which could be used as a source in future barley breeding programs for heat stress”
t0“barley cultivars (Hordeum vulgare L.)”
The same questions in other papers
heat · phenology · Hordeum vulgare (barley)Results differ
2 papers in the same direction as this paper · 1 in the opposite direction
- positive
- negative
- negative
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.