Leaf area dynamics in <i>Liquidambar styraciflua</i> saplings: responses to nitrogen fertilization

Kuers, Karen; Steinbeck, K.

doi:10.1139/x98-157

Cited by 15 publications

(19 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Higher foliar N concentrations in F10022 than in F10023 did not help to explain the greater biomass production in F10023; however, data reported in Chang and Robison [14] showed that F10023 seedlings had greater crown volume and total leaf area per seedling. This illustrates that, under the conditions used in this experiment, greater leaf area production was more important to biomass production than foliar N concentration [19].…”

Section: Plant N Uptake and N Use Efficiencymentioning

confidence: 68%

Genotypic Effects of Fertilization on Seedling Sweetgum Biomass Allocation, N Uptake, and N Use Efficiency

Chang

Robison

2001

The Scientific World JOURNAL

View full text Add to dashboard Cite

Screening and selecting tree genotypes that are responsive to N additions and that have high nutrient use efficiencies can provide better genetic material for short-rotation plantation establishment. A pot experiment was conducted to test the hypotheses that (1) sweetgum (Liquidambar styraciflua L.) families have different patterns in biomass production and allocation, N uptake, and N use efficiency (NUE), because of their differences in growth strategies, and (2) sweetgum families that are more responsive to N additions will also have greater nutrient use efficiencies. Seedlings from two half-sib families (F10022 and F10023) that were known to have contrasting responses to fertility and other stress treatments were used for an experiment with two levels of N (0 vs. 100 kg N/ha equivalent) and two levels of P (0 vs. 50 kg P/ha equivalent) in a split-plot design. Sweetgum seedlings responded to N and P treatments rapidly, with increases in both size and biomass production, and those responses were greater with F10023 than with F10022. Growth response to N application was particularly strong. N and P application increased the proportional allocation of biomass to leaves. Under increased N supply, P application increased foliar N concentration and content, as well as total N uptake by the seedlings. However, NUE was decreased by N addition and was higher in F10023 than in F10022 when P was not limiting. A better understanding of genotype by fertility interactions is important in selecting genotypes for specific site conditions and for optimizing nutrient use in forestry production.

show abstract

Section: Plant N Uptake and N Use Efficiencymentioning

confidence: 68%

Genotypic Effects of Fertilization on Seedling Sweetgum Biomass Allocation, N Uptake, and N Use Efficiency

Chang

Robison

2001

The Scientific World JOURNAL

View full text Add to dashboard Cite

show abstract

“…1a, b), the increase in leaf area in the HN stand is attributable mainly to the larger leaf area of individual leaves. Kuers and Steinbeck (1998) also showed in Liquidambar styraciflua that nitrogen fertilization increased total leaf area through increased leaf size rather than changes in leaf number. Larger leaf production at high nitrogen availability was reported in other species, e.g., in a tropical pioneer tree Heliocarpus appendiculatus (Ackerly and Bazzaz 1995), in three Carex species in a floating fen (Aerts and Caluwe 1994).…”

Section: Discussionmentioning

confidence: 88%

“…This maximal LAI defines the optimum LAI that maximizes canopy photosynthesis as well (Saeki 1960). However, leaf area development is strongly constrained by the availability of nitrogen (e.g., Hirose and Kitajima 1986;Kuers and Steinbeck 1998). Anten et al (1995) derived the optimal LAI that maximizes canopy photosynthesis for a given nitrogen availability in the stand.…”

Section: Introductionmentioning

confidence: 99%

Dynamics of leaf area and nitrogen in the canopy of an annual herb, Xanthium canadense

2005

View full text Add to dashboard Cite

We studied leaf area and nitrogen dynamics in the canopy of stands of an annual herb Xanthium canadense, grown at a high (HN)- and a low-nitorgen (LN) availability. Standing leaf area increased continuously through the vegetative growth period in the LN stand, or leveled off in the later stage in the HN stand. When scaled against standing leaf area, both production and loss rates of leaf area increased but with different patterns: the production rate was retarded, while the loss rate was accelerated, implying an upper limit of standing leaf area of the canopy. The rate of leaf-area production was higher in the HN than in the LN stand, which was caused by the higher rate of leaf production per standing leaf area as well as the greater standing leaf area in the HN stand. Although the rate of leaf-area loss was higher in the HN than in the LN stand, it was not significantly different between the two stands when compared at a common standing leaf area, suggesting involvement of light climate in determination of the leaf-loss rate. On the other hand, the rate of leaf-area loss was positively correlated with nitrogen demand for leaf area development across the two stands, suggesting that leaf loss was caused by retranslocation of nitrogen for construction of new leaves. A simple simulation model of leaf and nitrogen dynamics in the canopy showed that, at steady state, where the rate of leaf-area loss becomes equal to the production rate, the standing leaf area was still greater in the HN than in the LN stand. Similarly, when the uptake and loss of nitrogen are equilibrated, the standing nitrogen was greater in the HN than in the LN stand. These results suggest that leaf-area production is strongly controlled by nitrogen availability, while both nitrogen and light climate determine leaf-loss rates in the canopy.

show abstract

“…Leaf area in Liquidambar was studied by Kuers and Steinbeck (1998) depending on N fertilisation and on vertical and temporal leaf distribution. They identified an increase of the leaf area and of the total leaf weight in trees fertilised with N due rather to an increase of leaf size than to an increase of leaf number and of specific leaf weight.…”

Section: Resultsmentioning

confidence: 99%

Leaf Area and Its Relationship with Leaf Descriptors Elements in Liquidambar styraciflua L.

Poşta¹,

Sala²

2018

BUASVMCN-HORT

View full text Add to dashboard Cite

This study aimed at determining the leaf area in Liquidambar styraciflua L. and at characterising the relationship between leaf area and leaf descriptors. The biological material was the species Liquidambar styraciflua L. We determined leaf area in 100 leaves (Figure 1) based on the size of median rib (L), leaf width at higher (W 1 ) and lower (W 2 ) lobe level, and on area constants (K A ). The size of elements L, W 1 and W 2 were found by measuring with a precision of ±0.5 mm. Area constants in the species Liquidambar styraciflua L. were K A1 = 0.63, determined depending on leaf width at upper lobe width (W 1 ), and K A2 = 0.81 in relation to the width W 2 of the lower lobes. Between the scanned leaf area (SLA) and measured leaf area (MLA) and leaf descriptors (L, W 1 and W 2 ) we identified relations of interdependence statistically ensured: r = 0.960 to r = 0.971 for SLA; r = 0.951 to r = 0.981 for MLA W 1 , and r = 0.933 to r = 0.972 for MLA W 2 , respectively. Leaf descriptors L, W 1 and W 2 had a differentiated contribution in determining SLA and MLA. SLA was influenced by leaf length (L) with higher statistic safety (R 2 = 0.963, p << 0.001, F = 1277.2) than leaf width at upper lobe width W1 (R 2 = 0.943; p<<0.001; F = 797.7) and leaf width at the extremities of the lower lobes W 2 (R 2 = 0.927, p << 0.001, F = 620.59).

show abstract

Leaf area dynamics in Liquidambar styraciflua saplings: responses to nitrogen fertilization

Cited by 15 publications

References 0 publications

Genotypic Effects of Fertilization on Seedling Sweetgum Biomass Allocation, N Uptake, and N Use Efficiency

Genotypic Effects of Fertilization on Seedling Sweetgum Biomass Allocation, N Uptake, and N Use Efficiency

Dynamics of leaf area and nitrogen in the canopy of an annual herb, Xanthium canadense

Leaf Area and Its Relationship with Leaf Descriptors Elements in Liquidambar styraciflua L.

Contact Info

Product

Resources

About