The crown structure of Eucalyptus nitens (Deane & Maiden) Maiden 6 years after thinning, and the development of stand leaf area index both immediately and 6 years after thinning, were investigated. Thinning did not alter branch angle, branching density or the relationship between branch size and branch leaf area. However, larger branches were found in the lower crown of thinned trees and the increase in leaf area as a result of thinning occurred on the northern aspect of the crown. The vertical distribution of leaf area in unthinned trees was skewed toward the top of the crown and correlated with live crown ratio. The vertical distribution of leaf area in thinned trees tended to be less skewed and was unrelated to tree size or dominance. Leaf area index, as estimated from light interception measurements, increased at a constant rate soon after thinning regardless of residual stocking. In the longer term, residual stocking had a strong influence on leaf area increase per tree and was correlated with changes in crown length.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1093/treephys/21.12-13.989 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Early Initiation of Bundle Sheath Cells During Leaf Development as Visualised by SCARECROW Expression in Dicotyledonous C Plants.
Plant Cell Environ
January 2025
Department of Ecology & Evolutionary Biology, University of Toronto, Toronto, Ontario, Canada.
The C type of dicotyledonous plants exhibit a higher density of reticulate veins than the C type, with a nearly 1:1 ratio of mesophyll cells (MCs) to bundle sheath cells (BSCs). To understand how this C-type cell pattern is formed, we identified two SCARECROW (SCR) genes in C Flaveria bidentis, FbSCR1 and FbSCR2, that fully or partially complement the endodermal cell layer-defective phenotype of Arabidopsis scr mutant. We then created FbSCRs promoter β-glucuronidase reporter (GUS) lines of F.
View Article and Find Full Text PDFSpermine driven water deficit tolerance in early growth phases of sweet corn genotypes under hydroponic cultivation.
Sci Rep
January 2025
Department of Applied Plant Biology, Faculty of Agricultural and Food Sciences and Environmental Management, University of Debrecen, Debrecen, Hungary.
Sweet corn is highly susceptible to water deprivation, making it crucial to identify effective strategies for enhancing its tolerance to water deficit conditions. This study investigates the novel application of Spermine as a bio-stimulant to improve sweet corn (Zea mays L. var.
View Article and Find Full Text PDFStructural considerations and differences between leaf canals and secretory cavities in Asteraceae.
Protoplasma
January 2025
Departamento de Botánica, Instituto de Biología, Universidad Nacional Autónoma de México Apartado Postal, 70-233, 04510, Mexico City, Mexico.
Secretory canals are distributed among seed plants, and their diversity is concentrated in many families of angiosperms, while other internal secretory structures such as secretory cavities have been identified only in Rutaceae, Myrtaceae, and Asteraceae. Identifying and recognizing these two types of secretory structures has been complicated, mainly due to their structural similarities. In this study, the ontogeny of canals and secretory cavities in two species of Asteraceae are described and compared, to understand the structural differences between them and allow the establishment of more appropriate homology hypotheses.
View Article and Find Full Text PDFSoil nutrients and meteorological conditions are pivotal environmental factors influencing plant growth and development. This study systematically analyzes how soil nutrients and meteorological factors influence the phenotypic growth and seed production of wild Elymus nutans in Tibet. These environmental factors are critical ecological determinants, and this research seeks to unveil the complex and diverse ecological adaptation mechanisms of the species.
View Article and Find Full Text PDFEutherianCoP. An integrated biotic and climate database for conservation paleobiology based on eutherian mammals.
Sci Data
January 2025
DiSTAR, University of Naples "Federico II", 80126, via Vicinale Cupa Cintia 26, Naples, Italy.
We present a new database, EutherianCoP, of fossil mammals which lived globally from the Late Pleistocene to the Holocene. The database includes 13,972 fossil occurrences of 786 extant or recently extinct placental mammal species, plus 155,198 current occurrences for those of them which survived to the present. The occurrences are correlated with radiometric age information.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!