Above- and below-ground biomass partitioning and fine root morphology in juvenile Sitka spruce clones in monoclonal and polyclonal mixtures
PBN-AR
Instytucja
Instytut Dendrologii Polskiej Akademii Nauk
Informacje podstawowe
Główny język publikacji
EN
Czasopismo
FOREST ECOLOGY AND MANAGEMENT
ISSN
0378-1127
EISSN
Wydawca
ELSEVIER SCIENCE BV
DOI
URL
Rok publikacji
2016
Numer zeszytu
Strony od-do
17-25
Numer tomu
373
Identyfikator DOI
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Autorzy
(liczba autorów: 4)
Pozostali autorzy
+ 3
Słowa kluczowe
EN
Clones; Competition; Deployment type; Fine root morphology; Picea sitchensis
Streszczenia
Język
EN
Treść
Six juvenile Sitka spruce (Picea sitchensis (Bong.) Carr) clones were grown in monoclonal (pure) and polyclonal mixtures (mixed) in a field experiment to assess effects of clonal diversity on above- and below-ground growth, biomass partitioning and fine root morphology. Shoot height and root collar diameter were measured twice annually and after the second year 48 clones were destructively harvested. Fine roots were divided into 10 diameter classes, for each of which morphological characteristics were calculated from digitized images. Competitive interactions arising from deployment type were found to significantly increase fine root surface area in mixed plots and fine root length in pure plots for two fine root diameter classes for some clones. Competitive interactions were also found to significantly alter relationships between above- and below-ground variables and reduce the strength and significance of relationships among root traits in mixed plots. Significant inter-clonal variation for many above- and below-ground parameters was also observed. The two most productive clones, in terms of height and diameter growth, differed significantly in biomass partitioning suggesting that a high degree of variation occurs among Sitka spruce clones, which may affect stand productivity and uniformity.
Cechy publikacji
Original article
Original article presents the results of original research or experiment.
Oryginalny artykuł naukowy
Oryginalny artykuł naukowy przedstawia rezultaty oryginalnych badań naukowych lub eksperymentu.
Inne
System-identifier
PBN-R:743670
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