Abstract
The aim of the study is to comparatively evaluate the response of regenerated and original barley genotypes to soil stressors in terms of changes in morphometric and biochemical parameters of leaves. The work was carried out in 2024 at the Federal Scientific Center of the North-East (Kirov, Kirov Region, Russia). The object of the study was spring barley (Hordeum vulgare L.) variety ‘Boyarin’ and its second-generation regenerated lines. Sod-podzolic loamy soil was used for the experiment. Four soil backgrounds were simulated: control, with excess cadmium, acidic, and drought. Plants were grown under natural conditions. Leaves for the study were selected at the heading stage. Leaf length positively correlated with productivity (r = 0.49) against an acidic background; negatively – against a soil background containing cadmium and under drought (r = –0.48 and r = –0.75). Changes in leaf length and area were closely related to productivity in the original variety (r = 0.77...0.75) and the RA-PEG regenerant (r = 0.99...0.82). Regardless of soil conditions, the original variety was characterized by 45–73 % lower chlorophyll a content than the regenerants; 67–110 % lower chlorophyll b content; 40–80 % lower carotenoids; and 12–15 % lower total phenolic compound (PC) content. Compared with the original form, the regenerants had a higher antioxidant potential, diagnosed by the content of photosynthetic pigments and PC in the leaves. The greatest heterogeneity of genotypes in the total PC content in the leaves (CV = 10.7 %) was observed under drought. The content of chlorophyll a and carotenoids in the leaves did not differ statistically on different soil backgrounds; chlorophyll b increased by 50 % compared to the control under cadmium soil contamination. A conclusion was made about the effectiveness of the applied in vitro selection methods in obtaining regenerative genotypes capable of maintaining productivity under the influence of soil stressors.
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Claims 14
Claim · model-written summary
Barley leaf length was positively correlated with productivity in acidic soil.
- Taxon
- BARLEY
.jpg?width=60)
Hordeum vulgaret0 - Organ / stage
- Leafe0
- Outcome
- productivitye0
- Direction
- positively correlatede0
- Value
- r = 0.49e0
- Setting
- acidic backgrounde0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“Leaf length positively correlated with productivity (r = 0.49) against an acidic background”
t0“BARLEY”
Claim · model-written summary
Barley leaf length was negatively correlated with productivity in cadmium-containing soil.
- Taxon
- BARLEYHordeum vulgaret0
- Organ / stage
- Leafe1
- Outcome
- productivitye1
- Direction
- negativelye0
- Value
- r = –0.48e0
- Setting
- soil background containing cadmiume0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“negatively – against a soil background containing cadmium and under drought (r = –0.48 and r = –0.75)”
e1“Leaf length positively correlated with productivity (r = 0.49) against an acidic background”
t0“BARLEY”
Claim · model-written summary
Barley leaf length was negatively correlated with productivity under drought.
- Taxon
- BARLEYHordeum vulgaret0
- Organ / stage
- Leafe1
- Treatment
- droughte0
- Outcome
- productivitye1
- Direction
- negativelye0
- Value
- r = –0.75e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“negatively – against a soil background containing cadmium and under drought (r = –0.48 and r = –0.75)”
e1“Leaf length positively correlated with productivity (r = 0.49) against an acidic background”
t0“BARLEY”
Claim · model-written summary
Leaf length and area were closely related to productivity in the original barley variety.
- Taxon
- BARLEYHordeum vulgaret0
- Material
- original varietye0
- Organ / stage
- leafe0
- Outcome
- productivitye0
- Value
- r = 0.77...0.75e0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Changes in leaf length and area were closely related to productivity in the original variety (r = 0.77...0.75)”
t0“BARLEY”
Claim · model-written summary
Leaf length and area were closely related to productivity in the RA-PEG barley regenerant.
- Taxon
- BARLEYHordeum vulgaret0
- Material
- RA-PEG regenerante0
- Organ / stage
- leafe0
- Outcome
- productivitye0
- Value
- r = 0.99...0.82e0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Changes in leaf length and area were closely related to productivity in the original variety (r = 0.77...0.75) and the RA-PEG regenerant (r = 0.99...0.82)”
t0“BARLEY”
Claim · model-written summary
The original barley variety had 45–73 % lower chlorophyll a content than regenerants.
- Taxon
- BARLEYHordeum vulgaret0
- Material
- original varietye0
- Outcome
- chlorophyll a contente0
- Direction
- lowere0
- Value
- 45–73 %e0
- Comparator
- regenerantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the original variety was characterized by 45–73 % lower chlorophyll a content than the regenerants”
t0“BARLEY”
Claim · model-written summary
The original barley variety had 67–110 % lower chlorophyll b content than regenerants.
- Taxon
- BARLEYHordeum vulgaret0
- Material
- original varietye1
- Outcome
- chlorophyll b contente0
- Direction
- lowere0
- Value
- 67–110 %e0
- Comparator
- regenerantse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“67–110 % lower chlorophyll b content”
e1“the original variety was characterized by 45–73 % lower chlorophyll a content than the regenerants”
t0“BARLEY”
Claim · model-written summary
The original barley variety had 40–80 % lower carotenoids than regenerants.
- Taxon
- BARLEYHordeum vulgaret0
- Material
- original varietye1
- Outcome
- carotenoidse0
- Direction
- lowere0
- Value
- 40–80 %e0
- Comparator
- regenerantse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“40–80 % lower carotenoids”
e1“the original variety was characterized by 45–73 % lower chlorophyll a content than the regenerants”
t0“BARLEY”
Claim · model-written summary
The original barley variety had 12–15 % lower total phenolic compound content than regenerants.
- Taxon
- BARLEYHordeum vulgaret0
- Material
- original varietye1
- Outcome
- total phenolic compound (PC) contente0
- Direction
- lowere0
- Value
- 12–15 %e0
- Comparator
- regenerantse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“12–15 % lower total phenolic compound (PC) content”
e1“the original variety was characterized by 45–73 % lower chlorophyll a content than the regenerants”
t0“BARLEY”
Claim · model-written summary
Barley regenerants had higher antioxidant potential than the original form.
- Taxon
- BARLEYHordeum vulgaret0
- Material
- regenerantse0
- Outcome
- antioxidant potentiale0
- Direction
- highere0
- Comparator
- original forme0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compared with the original form, the regenerants had a higher antioxidant potential”
t0“BARLEY”
Claim · model-written summary
The greatest barley genotype heterogeneity in leaf total phenolic content occurred under drought.
- Taxon
- BARLEYHordeum vulgaret0
- Organ / stage
- leavese0
- Treatment
- droughte0
- Outcome
- heterogeneity of genotypes in the total PC contente0
- Direction
- greateste0
- Value
- CV = 10.7 %e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The greatest heterogeneity of genotypes in the total PC content in the leaves (CV = 10.7 %) was observed under drought.”
t0“BARLEY”
Claim · model-written summary
Barley leaf chlorophyll a and carotenoid content did not differ statistically across soil backgrounds.
- Taxon
- BARLEYHordeum vulgaret0
- Organ / stage
- leavese0
- Outcome
- content of chlorophyll a and carotenoidse0
- Direction
- did not differ statisticallye0
- Comparator
- different soil backgroundse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The content of chlorophyll a and carotenoids in the leaves did not differ statistically on different soil backgrounds”
t0“BARLEY”
Claim · model-written summary
Barley leaf chlorophyll b increased 50 % under cadmium contamination relative to control.
- Taxon
- BARLEYHordeum vulgaret0
- Treatment
- cadmium soil contaminatione0
- Outcome
- chlorophyll be0
- Direction
- increasede0
- Value
- 50 %e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“chlorophyll b increased by 50 % compared to the control under cadmium soil contamination”
t0“BARLEY”
Claim · model-written summary
The authors concluded that in vitro selection produced barley regenerants capable of maintaining productivity under soil stress.
- Taxon
- BARLEYHordeum vulgaret0
- Treatment
- in vitro selection methodse0
- Outcome
- maintaining productivitye0
Not reportedComparatorValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“effectiveness of the applied in vitro selection methods in obtaining regenerative genotypes capable of maintaining productivity under the influence of soil stressors”
t0“BARLEY”
The same questions in other papers
cadmium atom · physiology: pigments · Hordeum vulgare (barley)Results differ
2 papers in the same direction as this paper · 6 in the opposite direction
- negative
- negative
- negative
5 papers more in this group
See all 9 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.