Determinants of biomass production in hybrid willows and prediction of field performance from pot studies

Weih, Martin; Nordh, Nils‐Erik

doi:10.1093/treephys/25.9.1197

Cited by 67 publications

(75 citation statements)

References 36 publications

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“…This result concurs with our data from the cuttings original SRC where clone 90 also had the lowest biomass production per plant during the first rotation cycle [34]. This confirms the statement from our Swedish colleagues that pot-experiment results enable the prediction of performance of the plants in the field [35]. Clone 90 also had a significantly higher shoot/root production ratio than the other clones.…”

Section: Discussionsupporting

confidence: 91%

Quality Testing of Short Rotation Coppice Willow Cuttings

Heinsoo¹,

Tali²

2018

Forests

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Abstract:The production and feasibility of Short Rotation Coppice depend on cutting early performance. The shoot and root biomass production of Salix cuttings in hydroponic conditions was studied. The amount of sprouted biomass after four weeks of growth depended on cutting the diameter, but the original position of the cutting along the rod or number of visible buds was not in correlation with biomass produced. Application of mineral fertilizer or soil originating from the willow plantation did not increase the total production. On the contrary, the addition of soil tended to decrease biomass production and we assumed this was a result of a shortage of light. Under the influence of fertilization, plants allocated greater biomass to roots. Comparison of different clones revealed that those with S. dasyclados genes tended to allocate less biomass to roots and the poorest-performing clone in our experiment, also had the lowest wood production in the plantation. The number of visible buds on the cutting was also clone-specific.

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Section: Discussionsupporting

confidence: 91%

Quality Testing of Short Rotation Coppice Willow Cuttings

Heinsoo¹,

Tali²

2018

Forests

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“…The Salix data are based on means of biomass and N assessments across 6 Salix varieties field-grown in the third year of the first cutting cycle (fertilized and non-irrigated treatment, Weih and Nordh 2005). The major growth period in the Salix SRC lasted from May to September (16 weeks), and further details of the Salix data are found in Weih and Nordh (2005). "Yield" is grain in wheat and harvested shoot biomass in Salix.…”

Section: A Concept Linking Productivity To Nitrogen In Crop Plants Anmentioning

confidence: 99%

Assessment of nutrient use in annual and perennial crops: A functional concept for analyzing nitrogen use efficiency

2010

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The use of more nutrient-efficient crops is important for maintaining yields while enhancing environmental sustainability. Various approaches are being applied to evaluate aspects of plant nutrient use efficiency, among them ecological concepts based on accumulation and losses of biomass and nutrients, agronomic concepts with a major focus on agricultural crops and harvested products, and physiological approaches assessing single physiological processes important for nutrient use. Unfortunately, the various approaches are often not compatible. Here we propose, with the example of nitrogen (N) use efficiency (NUE) of cereals, to integrate the functionally important components of NUE in a common conceptual framework. We link productivity to N in crops and seeds and consider the whole life-cycle of the crop (including seeds). Three major components of NUE are separated: The N uptake efficiency, grain-specific N efficiency and grain N concentration. The three components combine to a measure of overall NUE in terms of the N yield in harvested grain per unit of N in seed grain or soil N. The concept can be applied for both annual and perennial plants, which is demonstrated with the examples of winter wheat and a perennial energy crop (Salix) grown in Central Sweden.

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“…It is recognized that site- Fig. 7 Concentrations of NO 3 -N, PO 4 -P, and carbon in top-and subsoil from the poplar plantations investigated, according to their estimated productivity specific factors affect the accumulation patterns of soil carbon in the topsoil, e.g., cultivation in poorer sandy soils might favor soil carbon increases in the topsoil [36,37,41], and the fundamental mechanisms responsible for soil organic carbon accumulation in poplar plantations are in general not well understood [19,22,23].…”

Section: Discussionmentioning

confidence: 99%

“…Extensive research has already been conducted to estimate the environmental performance of fast-growing tree species such as willows grown as short rotation coppice under controlled conditions [3,4], in commercial fields to assess groundwater and soil quality (e.g., as in [5,6]) or based on life cycle assessment (e.g., as in [7,8]). However, similar studies for poplars are scarce in Nordic conditions due to their limited area planted and their more recent establishment as a viable biomass production system for energy.…”

Section: Introductionmentioning

confidence: 99%

Impact of Populus Plantations on Water and Soil Quality

Dimitriou

Mola‐Yudego

2017

Bioenerg. Res.

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Trees of genus Populus (in our context primarily poplars) are predominantly grown in Sweden in small plantations on arable land in southern and central parts of the country to produce biomass for energy and other purposes. This study evaluated the effects (i) of poplar plantations on groundwater quality, by determining differences in leaching of nitrogen and phosphorus to groundwater, and (ii) of poplar and hybrid aspen plantations on soil quality in terms of carbon in the top-and subsoil. The study was conducted comparing Populus plantations in Sweden with adjacent fields with cereals and grasslands. The experiment concerning the groundwater leaching was conducted in eight poplar plantations along three growing seasons (2012)(2013)(2014)(2015). For the soil carbon experiments, 19 poplar and two hybrid aspen plantations and the respective reference fields were sampled. NO 3 -N leaching from poplar plantations was significantly lower than that from reference fields with cereals, but not when compared with grasslands. Spring NO 3 -N leaching was significantly lower in poplars than in the reference fields, whereas leaching of NO 3 -N in autumn did not differ. Concentrations of PO 4 -P in the groundwater of poplar plantations were lower compared to the respective ones of the reference fields. There were no clear trends observed when comparing carbon concentrations in the topsoil of the poplar and hybrid aspen plantations compared to the respective adjacent reference fields. For the subsoil, the average carbon concentrations in the poplar and hybrid aspen plantations were equal to the respective ones of cereals, but were higher when compared to grassland.

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Determinants of biomass production in hybrid willows and prediction of field performance from pot studies

Cited by 67 publications

References 36 publications

Quality Testing of Short Rotation Coppice Willow Cuttings

Quality Testing of Short Rotation Coppice Willow Cuttings

Assessment of nutrient use in annual and perennial crops: A functional concept for analyzing nitrogen use efficiency

Impact of Populus Plantations on Water and Soil Quality

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