Growth, allocation and leaf gas exchanges of hybrid poplar plants in their establishment phase on previously forested sites: effect of different vegetation management techniques

Coll, Lluís; Messier, Christian; Delagrange, Sylvain; Berninger, Frank

doi:10.1051/forest:2007005

Cited by 49 publications

(46 citation statements)

References 43 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…High photosynthetic rates are associated with increased seedling growth and N allocation to foliage [12,17,41]. Thus, increased biomass in seedlings following fertilization (Fig.…”

Section: Growth and Retranslocation Responsementioning

confidence: 99%

Growth, physiology, and nutrient retranslocation in nitrogen-15 fertilized Quercus rubra seedlings

et al. 2008

View full text Add to dashboard Cite

-We evaluated gas exchange, chlorophyll index (CI) using SPAD-502 chlorophyll meter, and leaf nutritional responses in one-year-old northern red oak (Quercus rubra L.) container seedlings transplanted into control (unfertilized) or fertilized (0.86 g N plant −1 ) sand culture and grown in a greenhouse for 90 days. We labeled current nitrogen (N) uptake with ( 15 NH 4 ) 2 SO 4 and directly quantified proportional contributions of N derived from fertilizer (NF) compared with retranslocation or N derived from plant (NP) in leaf growth of red oak seedlings. NF met a greater N demand in leaf growth of fertilized plants while unfertilized seedlings relied entirely on NP for their leaf growth. Fertilization increased leaf dry mass by 67% and new stem dry mass by 253% 90 days after transplanting compared to control seedlings. Specific leaf area (SLA) was not significantly altered but CI increased 90 days after transplanting. Higher leaf N concentration and content in fertilized compared with control seedlings was linked to greater chlorophyll concentrations in the former plants. The higher coefficient of determination (r 2 = 0.72) noted between leaf N concentrations and CI suggests that the SPAD meter could be a useful tool for assessing leaf N status in northern red oak seedlings. Fertilized seedlings exhibited higher net assimilation, stomatal conductance, and transpiration rates compared with controls. Increased seedling growth in response to fertilization was related to maintenance of higher gas exchange and greater nutrient uptake, which could improve outplanting success. fertilization / gas exchange / northern red oak / nitrogen / photosynthesis / retranslocation / SPAD meter Résumé -Croissance, échanges gazeux et réponses nutritionnelles de jeunes semis de Quercus rubra soumis à une fertilisation par ( 15 NH 4 ) 2 SO 4 . Nous avons estimé les échanges gazeux foliaires, un index de teneurs en chlorophylles (IC) avec un chlorophylle-mètre SPAD-502 et les teneurs en nutriments dans les feuilles de jeunes plants de chêne rouge d'Amérique (Quercus rubra L.) âgés d'un an. Les plants ont été transplantés dans du substrat sableux non fertilisé (témoins) ou fertilisé avec 0.86 g N par plante, et cultivés pendant 90 jours sous serre. L'azote apporté par la fertilisation était marqué avec ( 15 NH 4 ) 2 SO 4 et nous avons directement quantifié les contributions à la croissance foliaire de N apporté par la fertilisation (NF) par rapport à celle de N remobilisé depuis les pools de réserve de la plante (NP). NF constituait la fraction la plus importante d'azote foliaire de plants fertilisés, alors que l'azote foliaire des plants non fertilisés était exclusivement constitué de NP. La fertilisation s'est traduite par une augmentation, par rapport aux plantes témoins, de 67 % de la biomasse foliaire et de 253 % de la biomasse de tiges nouvellement formées 90 jours après la transplantation. La surface spécifique des feuilles n'était pas affectée par la fertilisation alors que CI avait significativement augmenté. Des teneur...

show abstract

“…High photosynthetic rates are associated with increased seedling growth and N allocation to foliage [12,17,41]. Thus, increased biomass in seedlings following fertilization (Fig.…”

Section: Growth and Retranslocation Responsementioning

confidence: 99%

Growth, physiology, and nutrient retranslocation in nitrogen-15 fertilized Quercus rubra seedlings

et al. 2008

View full text Add to dashboard Cite

show abstract

“…Therefore, establishment of poplar should be performed at this time as poplar is sensitive to competing vegetation [7,10,12]. A newly transplanted plant needs time to recover from the stress of handling and moving and establish roots to uptake soil water and nutrients.…”

Section: Discussionmentioning

confidence: 99%

“…However, poplar plantings on forest land are not always successful. Poplar plantations may fail due to poor vegetation control or soil management as young poplars are sensitive to competing vegetation [7,10,12]. Poplars are fast growing, with a rotation period of 10 to 25 years depending on planting density and location [11,13].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Influence of Cutting Type and Fertilization in Production of Containerized Poplar Plants

Böhlenius

Fransson

Holmström

et al. 2017

Forests

View full text Add to dashboard Cite

Most poplar plantations are planted on marginal agricultural land, but poplar plantations also hold the potential for increased profits compared to plantations of other species on non-agricultural, previously forested land. To date, the establishment of poplar plantations on previously forested land is limited by the production of suitable containerized poplar stock for planting. The objective of this study is to investigate how different cutting quality and fertilizer treatments influence height, diameter, and root biomass growth and root-to-shoot ratio, all important variables for plant establishment. Our results show that fertilization increases plant growth and that single-bud and two-bud cuttings with cutting diameters of 5 to 10 mm can be used in the production of containerized plants. Root biomass was similar between these plant types but the number of roots per plant was higher if two-bud cuttings were used. In contrast to fertilized plants, only one cutting type (two-bud 10 mm) grew to a sufficient height and diameter for use in poplar plantation establishment. Interestingly, the root-to-shoot ratio for this cutting type was 0.16 while the ratio for the same cutting type is 0.11 if fertilized. Together, these results suggest that most types of poplar cuttings can be used to establish poplar plantations if fertilizer is used and that the largest cutting type (two-bud 10 mm) might be more suitable to establish poplar plantations at harsh sites, thus reducing the cost of poplar plant production.

show abstract

“…Poplars are a demanding tree species in terms of water, nutrients and light and there are several studies demonstrating that vegetation control during the initial phase has a positive impact on both survival and initial growth [9][10][11]. Given that vegetation control enhances water and nutrient availability, application of fertilizers and hydrogel may have a positive effect on plant establishment.…”

Section: Introductionmentioning

confidence: 99%

Effects of Direct Application of Fertilizers and Hydrogel on the Establishment of Poplar Cuttings

Böhlenius

Övergaard

2014

Forests

View full text Add to dashboard Cite

Abstract:The aim of poplar plantations is to achieve high biomass production over a short rotation period. This requires low mortality and fast development of the transplants. The experiment described in this paper examines methods aimed at enhancing survival and development of Populus trichocarpa plants by application of fertilizers, a hydrogel or a combination of both to dormant cuttings just before planting. The experiment was carried out at two agricultural sites with different soil characteristics, a loamy sand and a silty loam. It was demonstrated that none of the treatments influenced survival or early growth at the silty loam soil site, and plant development was delayed by the solid fertilizer. At the site with loamy sand, the solid fertilizer negatively affected both survival and early growth. Hydrogel and the combination of hydrogel and the solid fertilizer also hampered early growth. Overall, treatments of poplar cuttings with hydrogel or fertilizers alone, or in combination, may not be a method to reduce poplar cutting mortality or to enhance early plant development on agricultural land. However, our results demonstrate that establishing poplar with cuttings as transplants can be used on both loamy sand and silty loam soils.

show abstract

Growth, allocation and leaf gas exchanges of hybrid poplar plants in their establishment phase on previously forested sites: effect of different vegetation management techniques

Cited by 49 publications

References 43 publications

Growth, physiology, and nutrient retranslocation in nitrogen-15 fertilized Quercus rubra seedlings

Growth, physiology, and nutrient retranslocation in nitrogen-15 fertilized Quercus rubra seedlings

Influence of Cutting Type and Fertilization in Production of Containerized Poplar Plants

Effects of Direct Application of Fertilizers and Hydrogel on the Establishment of Poplar Cuttings

Contact Info

Product

Resources

About