Abstract
To understand the drought resistance mechanism of two species(Lavandula angustifolia and L.stoechas),changes of physiological and biochemical indexes were investigated under light(LS),moderate(MS) and severe(HS) drought stress for 0,10,20,30 and 40 days through controling soil volumetric woisture content with negative pressure water supplying and controlling devices.The results showed that with the increasing of drought stress intensities and stress periods,the relative water content(RWC) of two species displayed a reduction trend.Under severe drought stress,the decrease amplitude was significantly increased after 40 d,the RWC decreased to 30.08% and 25.27%,while the RWC of L.angustifolia was the lowest.Contrary leaf relative electrolytic leakage(REC),soluble sugar(SSC) and MDA contents followed an increasing trend.The REC of L.angustifolia increase amplitude beyond to 400% under severe drought stress and was significantly higher than that of L.stoechas.The MDA content of L.angustifolia was also higher than that of L.stoechas.Meanwhile,SOD and CAT activities firstly elevated and then declined.Compared to the L.angustifolia,the RWC,SOD and CAT activities of L.stoechas were higher,but the REC,SSC and MDA contents of L.stoechas were lower.Overall,L.stoechas exhibited a stronger ability to tolerant drought stress than L.angustifolia.
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Claims 9
Claim · model-written summary
Relative water content declined in both lavender species as drought intensity and duration increased.
- Taxon
- Lavandula angustifolia and L.stoechas
Lavandula angustifolia
Lavandula stoechast0 - Treatment
- drought stress intensities and stress periodse0
- Outcome
- relative water content(RWC)e0
- Direction
- reductione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“with the increasing of drought stress intensities and stress periods,the relative water content(RWC) of two species displayed a reduction trend.”
t0“Lavandula angustifolia and L.stoechas”
Claim · model-written summary
Severe drought reduced relative water content to 30.08% and 25.27% after 40 days.
- Taxon
- Lavandula angustifolia and L.stoechasLavandula angustifoliaLavandula stoechast0
- Treatment
- severe drought stresse0
- Outcome
- RWCe0
- Direction
- decreasede0
- Value
- 30.08% and 25.27%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under severe drought stress,the decrease amplitude was significantly increased after 40 d,the RWC decreased to 30.08% and 25.27%,while the RWC of L.angustifolia was the lowest.”
t0“Lavandula angustifolia and L.stoechas”
Claim · model-written summary
Leaf electrolyte leakage, soluble sugar and MDA content increased with drought.
- Taxon
- Lavandula angustifolia and L.stoechasLavandula angustifoliaLavandula stoechast0
- Outcome
- leaf relative electrolytic leakage(REC),soluble sugar(SSC) and MDA contentse0
- Direction
- increasinge0
- Qualifier
- Contrarye0
Not reportedTreatment
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Contrary leaf relative electrolytic leakage(REC),soluble sugar(SSC) and MDA contents followed an increasing trend.”
t0“Lavandula angustifolia and L.stoechas”
Claim · model-written summary
Under severe drought, L.angustifolia electrolyte leakage increased by over 400%, significantly more than in L.stoechas.
- Taxon
- L.angustifoliaLavandula angustifoliae0
- Treatment
- severe drought stresse0
- Outcome
- RECe0
- Direction
- increasee0
- Value
- 400%e0
- Comparator
- L.stoechase0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The REC of L.angustifolia increase amplitude beyond to 400% under severe drought stress and was significantly higher than that of L.stoechas.”
Claim · model-written summary
MDA content was higher in L.angustifolia than in L.stoechas.
- Taxon
- L.angustifoliaLavandula angustifoliae0
- Outcome
- MDA contente0
- Direction
- highere0
- Comparator
- L.stoechase0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The MDA content of L.angustifolia was also higher than that of L.stoechas.”
Claim · model-written summary
SOD and CAT activities rose initially and then fell during drought.
- Taxon
- Lavandula angustifolia and L.stoechasLavandula angustifoliaLavandula stoechast0
- Outcome
- SOD and CAT activitiese0
- Direction
- firstly elevated and then declinede0
Not reportedTreatment
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Meanwhile,SOD and CAT activities firstly elevated and then declined.”
t0“Lavandula angustifolia and L.stoechas”
Claim · model-written summary
L.stoechas had higher RWC, SOD and CAT activities than L.angustifolia.
- Taxon
- L.stoechasLavandula stoechase0
- Outcome
- RWC,SOD and CAT activitiese0
- Direction
- highere0
- Comparator
- L.angustifoliae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compared to the L.angustifolia,the RWC,SOD and CAT activities of L.stoechas were higher”
Claim · model-written summary
L.stoechas had lower REC, SSC and MDA than L.angustifolia.
- Taxon
- L.stoechasLavandula stoechase0
- Outcome
- REC,SSC and MDA contentse0
- Direction
- lowere0
- Comparator
- L.angustifoliae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compared to the L.angustifolia,the RWC,SOD and CAT activities of L.stoechas were higher,but the REC,SSC and MDA contents of L.stoechas were lower.”
Claim · model-written summary
The authors conclude that L.stoechas tolerates drought better than L.angustifolia.
- Taxon
- L.stoechasLavandula stoechase0
- Outcome
- stronger ability to tolerant drought stresse0
- Comparator
- L.angustifoliae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Overall,L.stoechas exhibited a stronger ability to tolerant drought stress than L.angustifolia.”
The same questions in other papers
drought · physiology: water · Lavandula angustifolia (lavender)Positive and negative results
1 in the opposite direction
- positive
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.