Hydraulic efficiency at the whole tree level stably correlated with productivity over years in 9 poplar hybrids clones

2021 ◽  
Vol 496 ◽  
pp. 119382
Author(s):  
Han Zhao ◽  
Zaimin Jiang ◽  
Youjing Zhang ◽  
Bo Jiang ◽  
Jing Cai
Keyword(s):  
Tree Level ◽  
Hydraulic Efficiency ◽  
Whole Tree

Costs of female reproduction in a conifer tree: a whole-tree level assessment

2014 ◽  
Vol 102 (5) ◽  
pp. 1310-1317 ◽  
Author(s):  
Luis Santos-del-Blanco ◽  
José Climent
Keyword(s):  
Tree Level ◽  
Female Reproduction ◽  
Conifer Tree ◽  
Whole Tree

scholarly journals Wood and Pulping Properties Variation of Acacia crassicarpa A.Cunn. ex Benth. and Sampling Strategies for Accurate Phenotyping

Forests ◽  
2020 ◽  
Vol 11 (10) ◽  
pp. 1043 ◽  
Author(s):  
Gustavo Salgado Martins ◽  
Muhammad Yuliarto ◽  
Rudine Antes ◽  
Sabki ◽  
Agung Prasetyo ◽  
...  
Keyword(s):  
Kraft Pulp ◽  
Basic Density ◽  
Wood Properties ◽  
Tree Level ◽  
Pulp Yield ◽  
Sampling Strategies ◽  
Glucose Content ◽  
Acacia Crassicarpa ◽  
G Ratio ◽  
Whole Tree

Research Highlights: This study provides a comprehensive set of wood and pulping properties of Acacia crassicarpa A.Cunn. ex Benth. to assess variation and efficient sampling strategies for whole-tree level phenotyping. Background and Objectives: A. crassicarpa is an important tree species in Southeast Asia, with limited knowledge about its wood properties. The objective of this study was to characterize important wood properties and pulping performance of improved germplasm of the species. Furthermore, we investigated within-tree patterns of variation and evaluated the efficiency of phenotyping strategies. Materials and Methods: Second-generation progeny trials were studied, where forty 50-month-old trees were selected for destructive sampling and assessed for wood density, kraft pulp yield, α-cellulose, carbohydrate composition, and lignin content and composition (S/G ratio). We estimated the phenotypic correlations among traits determined within-tree longitudinal variation and its importance for whole-tree level phenotyping. Results: The mean whole-tree disc basic density was 481 kg/m3, and the screened kraft pulp yield was 53.8%. The reliabilities of each sampling position to predict whole-tree properties varied with different traits. For basic density, pulp yield, and glucose content, the ground-level sampling could reliably predict the whole-tree property. With near infrared reflectance spectroscopy predictions as an indirect measurement method for disc basic density, we verified reduced reliability values for breast height sampling but sufficiently correlated to allow accurate ranking and efficient selection of genotypes in a breeding program context. Conclusions: We demonstrated the quality of A. crassicarpa as a wood source for the pulping industry. The wood and pulping traits have high levels of phenotypic variation, and standing tree sampling strategies can be performed for both ranking and high-accuracy phenotyping purposes.

scholarly journals Sucrose synthase determines carbon allocation in developing wood and alters carbon flow at the whole tree level in aspen

2020 ◽  
Vol 229 (1) ◽  
pp. 186-198 ◽  
Author(s):  
Pia Guadalupe Dominguez ◽  
Evgeniy Donev ◽  
Marta Derba‐Maceluch ◽  
Anne Bünder ◽  
Mattias Hedenström ◽  
...  
Keyword(s):  
Sucrose Synthase ◽  
Carbon Allocation ◽  
Carbon Flow ◽  
Tree Level ◽  
Whole Tree

scholarly journals A whole-tree chamber system for examining tree-level physiological responses of field-grown trees to environmental variation and climate change

2006 ◽  
Vol 29 (9) ◽  
pp. 1853-1869 ◽  
Author(s):  
JANE MEDHURST ◽  
JAN PARSBY ◽  
SUNE LINDER ◽  
GORAN WALLIN ◽  
ERIC CESCHIA ◽  
...  
Keyword(s):  
Climate Change ◽  
Physiological Responses ◽  
Environmental Variation ◽  
Tree Level ◽  
Chamber System ◽  
Whole Tree

scholarly journals Whole-tree biomass and carbon allocation of juvenile trees of loblolly pine (Pinus taeda): influence of genetics and fertilization

2001 ◽  
Vol 31 (6) ◽  
pp. 960-970 ◽  
Author(s):  
W A Retzlaff ◽  
J A Handest ◽  
D M O'Malley ◽  
S E McKeand ◽  
M A Topa
Keyword(s):  
Pinus Taeda ◽  
Loblolly Pine ◽  
Biomass Allocation ◽  
Total Carbon ◽  
Tree Level ◽  
Total Biomass ◽  
Tree Biomass ◽  
Slow Growing ◽  
Total Tree ◽  
Whole Tree

To assess the contribution of belowground biomass allocation towards total carbon (C) allocation of two provenances of loblolly pine (Pinus taeda L.), we examined the total biomass allocation of a fast- and slow-growing family from each provenance. Since planting on a xeric, infertile site in Scotland County, N.C., U.S.A., trees in this study have been subjected to one of two nutrient treatments: optimal nutrition or control (no fertilization). Total biomass of 24 (1 tree/family plot × 2 families × 2 provenances × 2 treatments × 3 blocks) 5-year-old (juvenile) trees was harvested in January 1998. Fertilization increased total root, total shoot, and total tree biomass in all families as compared with harvested trees in control plots. Fertilization also increased biomass of coarse-root, woody-root, taproot, stem, branch, and foliar components of families as compared with trees in control plots. Although there were treatment and family differences in standing-crop biomass of the total root, total shoot, total tree, and various individual root and shoot components, the percent biomass (whole-tree) allocation to these tissues remained similar across treatments. Total nonstructural carbohydrate (TNC) analysis indicated some treatment, family, and provenance differences in TNC concentrations and partitioning to starch and soluble sugars. At the time of harvest, TNC concentrations of belowground tissues were much higher than those of aboveground tissues, and enhanced partitioning towards starch in root tissues indicates an important C storage role for belowground tissues at this time. Indeed, more than 90% of the trees starch content was present in root tissue in January. Although constrained by a sample size of three harvested trees per family, this study suggests that biomass allocation on a whole-tree level was similar between fast- and slow-growing families of different provenances of juvenile loblolly pine and was not affected by fertilizer treatment.

scholarly journals A New Insight into Pruning Strategy in the Biennial Cycle of Fruiting: Vegetative Growth at Shoot and Whole-tree Level, Yield and Fruit Quality of Apple

2017 ◽  
Vol 45 (1) ◽  
pp. 232-237 ◽  
Author(s):  
Ersin ATAY
Keyword(s):  
Fruit Quality ◽  
Vegetative Growth ◽  
Management Practices ◽  
Shoot Length ◽  
Tree Level ◽  
Mature Trees ◽  
Canopy Volume ◽  
Orchard Management ◽  
Whole Tree ◽  
Growth Indicator

Knowledge of the growth dynamics of young and mature trees contribute to development of efficient orchard management practices. In this experiment, the aim was to provide apple growers with practical information on how vegetative growth (at both shoot and whole-tree level), yield and fruit quality change during the transition period, from young to mature trees. The experiment orchard was planted at 3.5 m × 1 m inter-row and intra-row spacings, respectively, with ‘Golden Delicious’/M.9 trees. Trees were trained since planting as modified vertical axis. Vegetative growth at shoot level reacted differently to yield load than that at the whole-tree level. The yield, yield efficiency and annual canopy volume increase and decrease (a vegetative growth indicator at the whole-tree level) showed a positive correlation with shoot length. TCSA (annual increase and actual TCSA), as another vegetative growth indicator at whole-tree level in the experiment, correlated negatively with shoot length. The yield varied biennially and, was greatest in the seventh year after planting (21.76±8.46 kg tree-1, corresponding to an orchard yield of ~62 t ha-1) that is an acceptable tonnage in the region of the experiment. To maintain the balance between vegetative growth and fruiting, orchard management practices should be conducted considering yield. No pruning or light pruning is recommended in the ‘off-year’ of biennial cycle of fruiting as a result of this study.

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