Document Detail


Leaf growth dynamics in four plant species of the Patagonian Monte, Argentina.
MedLine Citation:
PMID:  23275109     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Studying plant responses to environmental variables is an elemental key to understand the functioning of arid ecosystems. We selected four dominant species of the two main life forms. The species selected were two evergreen shrubs: Larrea divaricata and Chuquiraga avellanedae and two perennial grasses: Nassella tenuis and Pappostipa speciosa. We registered leaf/shoot growth, leaf production and environmental variables (precipitation, air temperature, and volumetric soil water content at two depths) during summer-autumn and winter-spring periods. Multiple regressions were used to test the predictive power of the environmental variables. During the summer-autumn period, the strongest predictors of leaf/shoot growth and leaf production were the soil water content of the upper layer and air temperature while during the winter-spring period, the strongest predictor was air temperature. In conclusion, we found that the leaf/shoot growth and leaf production were associated with current environmental conditions, specially to soil water content and air temperature.
Authors:
M Victoria Campanella; Mónica B Bertiller
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-12-30
Journal Detail:
Title:  Journal of plant research     Volume:  -     ISSN:  1618-0860     ISO Abbreviation:  J. Plant Res.     Publication Date:  2012 Dec 
Date Detail:
Created Date:  2012-12-31     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9887853     Medline TA:  J Plant Res     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
Centro Nacional Patagónico (CENPAT, CONICET), Boulevard Brown 2915, 9120, Puerto Madryn, Chubut, Argentina, campanella@cenpat.edu.ar.
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