Abstract
The effects of water stress on some growth and chlorophyll a fluorescence parameters were investigated in two native black poplar (Populus nigra L.) clones (Kocabey and Gazi) and in two hybrid poplar (Populus × euramericana (Dode) Guinier) clones (I-214 and I-45/51) to determine which among the four clones is the best adapted to water-stress conditions. The potted seedlings were grown under three watering regimes. As a result of the applied watering regimes, the predawn water potential (ψ pd) of seedlings was maintained at about -0.3, -0.9, and -1.6 MPa in control, moderate, and severe water-stress treatments during the experiment, respectively. Drought treatment had significant effects on the morphology and growth characteristics of the clones but had generally insignificant effects on survival and the photochemical activity of photosystem II (PSII). Results obtained from the present study demonstrate that I-214 was the most successful in terms of its higher root/shoot ratio (Rs), maximum fluorescence yield (Fm), maximum quantum efficiency of PSII (Fv/Fm) values, and lower number of leaves among the examined four poplar clones under drought stress conditions. Consequently, the I-214 poplar clone may have the potential to be used in drought areas.
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Claims 5
Claim · model-written summary
Clone I-214 had higher root/shoot ratio, maximum fluorescence yield and maximum quantum efficiency of PSII than the other examined poplar clones under drought stress.
- Material
- I-214e1
- Treatment
- drought stress conditionse1
- Outcome
- root/shoot ratio (Rs), maximum fluorescence yield (Fm), maximum quantum efficiency of PSII (Fv/Fm)e1
- Direction
- highere1
- Comparator
- the examined four poplar clonese1
PopulusOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“black and hybrid poplar clones”
e1“Results obtained from the present study demonstrate that I-214 was the most successful in terms of its higher root/shoot ratio (Rs), maximum fluorescence yield (Fm), maximum quantum efficiency of PSII (Fv/Fm) values, and lower number of leaves among the examined four poplar clones under drought stress conditions”
Claim · model-written summary
Clone I-214 had a lower number of leaves than the other examined poplar clones under drought stress.
- Material
- I-214e1
- Treatment
- drought stress conditionse1
- Outcome
- number of leavese1
- Direction
- lowere1
- Comparator
- the examined four poplar clonese1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“black and hybrid poplar clones”
e1“Results obtained from the present study demonstrate that I-214 was the most successful in terms of its higher root/shoot ratio (Rs), maximum fluorescence yield (Fm), maximum quantum efficiency of PSII (Fv/Fm) values, and lower number of leaves among the examined four poplar clones under drought stress conditions”
Claim · model-written summary
Drought treatment had significant effects on the morphology and growth characteristics of poplar clones.
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“black and hybrid poplar clones”
e2“Drought treatment had significant effects on the morphology and growth characteristics of the clones”
Claim · model-written summary
Drought treatment had generally no significant effect on survival or on the photochemical activity of PSII in poplar clones.
- Treatment
- Drought treatmente2
- Outcome
- survival and the photochemical activity of photosystem II (PSII)e3
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“black and hybrid poplar clones”
e2“Drought treatment had significant effects on the morphology and growth characteristics of the clones”
e3“had generally insignificant effects on survival and the photochemical activity of photosystem II (PSII)”
Claim · model-written summary
The I-214 poplar clone may have the potential to be used in drought areas.
- Outcome
- potential to be used in drought arease4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“black and hybrid poplar clones”
e4“Consequently, the I-214 poplar clone may have the potential to be used in drought areas”
The same questions in other papers
drought · physiology: photosynthesis · Populus (poplar)Positive and negative results
8 papers in the same direction as this paper · 1 in the opposite direction
- positive
- negative
- negative
6 papers more in this group
See all 10 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.