Abstract
This study was performed to investigate the effects of drought stress on behavior of cork oak seedlings (Quercus suber L) originatd from five different ecogeographical zones in Algeria (Tlemcen, Oum Tboul, Jijel, Dradra, Tizi Ouzou). The resilts showed that drought stress affected both the height and collar diameter, relative growth in height and diameter of stems in provenances Oum Tboul, Tlemcen and Tizi Ouzou, also a decrease in leaf number and fresh and dry masses, shoot to root dry mass ratio and the relative water content for all stressed plants from all provenances. However, it has been noted a significant increase in length of the main root in all provenances. As well as a decrease in the total chlorophyll and carotenoids contents and increase in proline content especially in Tizi Ouzou and Tlemcen provenances under water limitation. Moreover, the anatomical study revealed a reduction in vessel diameter of rootsin all stressed plants from all provenances. The five cork oak provenances studied showed different morpho-physiological and anatomical traits that could be linked to the environnemental conditions of provenances.
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Claims 7
Claim · model-written summary
Drought affected height and collar diameter and their relative growth in three provenances.
- Taxon
- Quercus suber L
Quercus subert0 - Material
- provenances Oum Tboul, Tlemcen and Tizi Ouzoue0
- Treatment
- drought stresse0
- Outcome
- height and collar diameter, relative growth in height and diameter of stemse0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“drought stress affected both the height and collar diameter, relative growth in height and diameter of stems in provenances Oum Tboul, Tlemcen and Tizi Ouzou”
t0“Quercus suber L.”
Claim · model-written summary
Drought decreased leaf number, fresh and dry masses, shoot to root dry mass ratio, and relative water content across provenances.
- Taxon
- Quercus suber LQuercus subert0
- Treatment
- stressed plantse0
- Outcome
- leaf number and fresh and dry masses, shoot to root dry mass ratio and the relative water contente0
- Direction
- decreasee0
- Qualifier
- all provenancese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a decrease in leaf number and fresh and dry masses, shoot to root dry mass ratio and the relative water content for all stressed plants from all provenances”
t0“Quercus suber L.”
Claim · model-written summary
Main root length significantly increased in all provenances under drought.
- Taxon
- Quercus suber LQuercus subert0
- Treatment
- drought stresse1
- Outcome
- length of the main roote0
- Direction
- increasee0
- Qualifier
- all provenancese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a significant increase in length of the main root in all provenances”
e1“effects of drought stress on behavior of cork oak seedlings”
t0“Quercus suber L.”
Claim · model-written summary
Water limitation decreased total chlorophyll and carotenoid content, particularly in Tizi Ouzou and Tlemcen provenances.
- Taxon
- Quercus suber LQuercus subert0
- Material
- Tizi Ouzou and Tlemcen provenancese0
- Treatment
- water limitatione0
- Outcome
- total chlorophyll and carotenoids contentse0
- Direction
- decreasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a decrease in the total chlorophyll and carotenoids contents and increase in proline content especially in Tizi Ouzou and Tlemcen provenances under water limitation”
t0“Quercus suber L.”
Claim · model-written summary
Water limitation increased proline content, especially in Tizi Ouzou and Tlemcen provenances.
- Taxon
- Quercus suber LQuercus subert0
- Material
- Tizi Ouzou and Tlemcen provenancese0
- Treatment
- water limitatione0
- Outcome
- proline contente0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increase in proline content especially in Tizi Ouzou and Tlemcen provenances under water limitation”
t0“Quercus suber L.”
Claim · model-written summary
Root vessel diameter was reduced in stressed plants across all provenances.
- Taxon
- Quercus suber LQuercus subert0
- Treatment
- stressed plantse0
- Outcome
- vessel diameter of rootsine0
- Direction
- reductione0
- Qualifier
- all provenancese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a reduction in vessel diameter of rootsin all stressed plants from all provenances”
t0“Quercus suber L.”
Claim · model-written summary
The five cork oak provenances differed in morphophysiological and anatomical traits.
- Taxon
- cork oakQuercus subere0
- Material
- five cork oak provenancese0
- Outcome
- morpho-physiological and anatomical traitse0
- Direction
- differente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The five cork oak provenances studied showed different morpho-physiological and anatomical traits that could be linked to the environnemental conditions of provenances.”
The same questions in other papers
drought · physiology: pigments · Quercus suber (cork oak)Results agree
2 papers in the same direction as this paper
- 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.