Abstract
The Populus clones examined, exhibited wide variation in stomatal frequency. length of stomatal complex and leaf surface distribution patterns. Cluster analyses showed that stomatal configurations were moderately linked with parentage. Demonstrated clonal differences in growth rate in greenhouse or growth chamber environments could not be associated with differences in gas exchange arising from stomatal pore occlusion. Clonal differences in water balance were clear, the clones with highest growth potential utilizing various methods of superior water acquisition, better water transport and close stomatal control of water loss under water stress, to maintain crown hydration. The stomatal sensitivity to vapour pressure deficit of two rapidly growing clones of Populus candicans Populus berolinensis was associated with the known drought resistance of Populus berolinensis. Of four clones grown under controlled conditions, the more rapidly growing ones had higher estimated net assimulation rates, more rapid root growth and a higher root weight per unit leaf area than the more slowly growing clones.
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Claims 6
Claim · model-written summary
Populus clones varied widely in stomatal frequency.
PopulusOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The Populus clones examined, exhibited wide variation in stomatal frequency”
Claim · model-written summary
Stomatal configurations were moderately linked with parentage.
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The Populus clones examined, exhibited wide variation in stomatal frequency”
e1“Cluster analyses showed that stomatal configurations were moderately linked with parentage”
Claim · model-written summary
Clonal differences in growth rate could not be associated with differences in gas exchange.
- Material
- clonese0
- Outcome
- growth ratee1
- Direction
- could not be associatede1
- Setting
- greenhouse or growth chamber environmentse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The Populus clones examined, exhibited wide variation in stomatal frequency”
e1“Demonstrated clonal differences in growth rate in greenhouse or growth chamber environments could not be associated with differences in gas exchange arising from stomatal pore occlusion”
Claim · model-written summary
Clones differed clearly in water balance.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The Populus clones examined, exhibited wide variation in stomatal frequency”
e1“Clonal differences in water balance were clear”
Claim · model-written summary
Clones with the highest growth potential maintained crown hydration through superior water acquisition, better water transport and close stomatal control under water stress.
- Treatment
- water stresse1
- Outcome
- crown hydratione1
- Qualifier
- superior water acquisition, better water transport and close stomatal control of water losse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The Populus clones examined, exhibited wide variation in stomatal frequency”
e1“the clones with highest growth potential utilizing various methods of superior water acquisition, better water transport and close stomatal control of water loss under water stress, to maintain crown hydration”
Claim · model-written summary
Stomatal sensitivity to vapour pressure deficit of two rapidly growing poplar clones was associated with the known drought resistance of Populus berolinensis.
- Taxon
- Populus candicans
Populus candicanse0 - Material
- Populus berolinensise0
- Treatment
- vapour pressure deficite0
- Outcome
- stomatal sensitivity to vapour pressure deficite0
- Qualifier
- drought resistancee0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The stomatal sensitivity to vapour pressure deficit of two rapidly growing clones of Populus candicans Populus berolinensis was associated with the known drought resistance of Populus berolinensis”