Abstract
Abstract This study was conducted in a greenhouse at research station (A) of the College of Agricultural Engineering Sciences - University of Baghdad - Jadiriyah during the autumn season of 2020 to study the impact of exogenous application of hydrogen peroxide and soil amendments (zeolite and Disper osmotic regulator) and their interactions in the physiological traits of the Ranunculus asiaticus L. grown in saline soils. The experiment was carried in a split-split block (2*5*3) according to an RCBD randomized complete block design with three replications and an average of 6 plants in the experimental unit The results showed that the growth of Ranunculus asiaticus L in saline soils caused a significant decrease in the leaf content of relative water content (RWC), membrane stability index (MSI), chlorophyll content. While a significant increase in the leaf content of hydrogen peroxide was observed, and the increase in the electrolytic leaching of the plant is an indicator of oxidative stress. The addition of soil amendments to plants grown under salinity stress caused a significant increase in the leaf content relative to water content, membrane stability, decreased electrolytic leaching, and hydrogen peroxide content. Exogenous application of hydrogen peroxide at a concentration (5 mmol l -1 ) had a positive effect on most of the physiological characteristics. The interaction between soil amendments and hydrogen peroxide contributed to the avoidance of plants from oxidative stress resulting from the high concentration of effective oxygen radicals (ROS) in the cells of plants exposed to salt stress, and stimulating the activity of the enzymatic and non enzymatic defense system in addition to the increase of chlorophyll and physiological characteristics.
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Claims 7
Claim · model-written summary
Salinity significantly decreased leaf relative water content, membrane stability index and chlorophyll content of Ranunculus asiaticus.
- Taxon
- Ranunculus asiaticus
Ranunculus asiaticuse1 - Organ / stage
- leafe1
- Treatment
- saline soilse1
- Outcome
- relative water content (RWC), membrane stability index (MSI), chlorophyll contente1
- Direction
- decreasee1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“the growth of Ranunculus asiaticus L in saline soils caused a significant decrease in the leaf content of relative water content (RWC), membrane stability index (MSI), chlorophyll content”
Claim · model-written summary
Salinity significantly increased leaf hydrogen peroxide content of Ranunculus asiaticus.
- Taxon
- Ranunculus asiaticusRanunculus asiaticuse1
- Organ / stage
- leafe2
- Treatment
- saline soilse1
- Outcome
- hydrogen peroxidee2
- Direction
- increasee2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“the growth of Ranunculus asiaticus L in saline soils”
e2“While a significant increase in the leaf content of hydrogen peroxide was observed”
Claim · model-written summary
Increased electrolytic leaching of the plant is an indicator of oxidative stress in Ranunculus asiaticus.
- Taxon
- Ranunculus asiaticusRanunculus asiaticuse1
- Outcome
- electrolytic leaching of the plante3
- Qualifier
- an indicator of oxidative stresse3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“the growth of Ranunculus asiaticus L in saline soils”
e3“the increase in the electrolytic leaching of the plant is an indicator of oxidative stress”
Claim · model-written summary
Soil amendments under salinity stress significantly increased relative water content and membrane stability of leaves.
- Taxon
- Ranunculus asiaticusRanunculus asiaticuse1
- Organ / stage
- leafe4
- Treatment
- soil amendmentse4
- Outcome
- relative to water content, membrane stabilitye4
- Direction
- increasee4
- Comparator
- plants grown under salinity stresse4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“the growth of Ranunculus asiaticus L in saline soils”
e4“The addition of soil amendments to plants grown under salinity stress caused a significant increase in the leaf content relative to water content, membrane stability, decreased electrolytic leaching, and hydrogen peroxide content”
Claim · model-written summary
Soil amendments under salinity stress decreased electrolytic leaching and hydrogen peroxide content of leaves.
- Taxon
- Ranunculus asiaticusRanunculus asiaticuse1
- Organ / stage
- leafe4
- Treatment
- soil amendmentse4
- Outcome
- electrolytic leaching, and hydrogen peroxide contente4
- Direction
- decreasede4
- Comparator
- plants grown under salinity stresse4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“the growth of Ranunculus asiaticus L in saline soils”
e4“The addition of soil amendments to plants grown under salinity stress caused a significant increase in the leaf content relative to water content, membrane stability, decreased electrolytic leaching, and hydrogen peroxide content”
Claim · model-written summary
Exogenous hydrogen peroxide at 5 mmol l -1 had a positive effect on most physiological characteristics of Ranunculus asiaticus.
- Taxon
- Ranunculus asiaticusRanunculus asiaticuse1
- Treatment
- Exogenous application of hydrogen peroxide at a concentration (5 mmol l -1 )e5
- Outcome
- most of the physiological characteristicse5
- Direction
- had a positive effecte5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“the growth of Ranunculus asiaticus L in saline soils”
e5“Exogenous application of hydrogen peroxide at a concentration (5 mmol l -1 ) had a positive effect on most of the physiological characteristics”
Claim · model-written summary
The interaction of soil amendments and hydrogen peroxide helped Ranunculus asiaticus avoid oxidative stress by stimulating its defence system.
- Taxon
- Ranunculus asiaticusRanunculus asiaticuse1
- Treatment
- interaction between soil amendments and hydrogen peroxidee6
- Outcome
- avoidance of plants from oxidative stresse6
- Qualifier
- stimulating the activity of the enzymatic and non enzymatic defense systeme7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“the growth of Ranunculus asiaticus L in saline soils”
e6“The interaction between soil amendments and hydrogen peroxide contributed to the avoidance of plants from oxidative stress”
e7“stimulating the activity of the enzymatic and non enzymatic defense system”