Nitrogen Uptake, Leaf Nitrogen Concentration, and Growth of Saskatoons in Response to Soil Nitrogen Fertility

Zatylny, A. M.; St-Pierre, R. G.

doi:10.1080/01904160500468738

Cited by 9 publications

(7 citation statements)

References 12 publications

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“…Leaf nitrogen was positively and significantly related to soil nitrogen for both studied species. So, an increased availability of soil N is associated with higher concentrations of leaf N. These results corroborate with those of Tognetti, Johnson & Michelozzi (), Zatylny & St‐Pierre (), Orwin et al . () and He et al .…”

Section: Discussionsupporting

confidence: 90%

Leaf traits of two Mediterranean perennial tussock grass species in relation to soil nitrogen and phosphorus availability

Ghiloufi

Chaïeb

2015

Afr. J. Ecol.

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Studying relationships of plant traits to ecosystem properties is an emerging approach aiming to understand plant's potential effect on ecosystem functioning. In the current study, we explored links between morphological and nutritional leaf traits of two Mediterranean perennial grass species Stipa tenacissima and Lygeum spartum, widely used to prevent desertification process by stabilizing sand dunes. We evaluated also relationships in terms of nitrogen (N) and phosphorus (P) availability between leaves of the investigated species and the corresponding soil. Our results showed that leaf P was very low in comparison with leaf N for the two investigated species. In fact, chlorophyll content, photosynthesis capacity and water conservation during photosynthesis are mainly linked to leaf nitrogen content. Our findings support previous studies showing that at the species levels, morphological and nutritional leaf traits were not related. On the other hand, significant relationships were obtained between soil N and leaf N for S. tenacissima (P = 0.011) and L. spartum (P = 0.033). However, leaf P was not significantly related to soil P availability for both species. We suggest that any decrease in soil N with the predicted increasing aridity may result in reduction in leaf N and thus in worst dysfunction of some biological processes levels.

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Section: Discussionsupporting

confidence: 90%

Leaf traits of two Mediterranean perennial tussock grass species in relation to soil nitrogen and phosphorus availability

Ghiloufi

Chaïeb

2015

Afr. J. Ecol.

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“…The greater amaranth shoot dry matter yield from PMC and urea was due to greater uptake of N from these two sources of N compared to that of PMN. This corroborates the findings of [17] who reported an increase in the dry matter yield of Amaranthus cruentus with the application of poultry manure and NPK, [44] also reported an increase in the dry matter yield of potato with the application of supplemental poultry manure at the rate of 0 and 4 Mg ha −1 with the highest value recorded at 4 Mg ha −1 , and [45] 120 kg•N•ha −1 compared to control. Earlier works by [46] showed positive response of amaranth to N application.…”

Section: Effects Of Nitrogen Source and Rates Of Application On N And P Uptake And Shoot Biomass Of Amaranth Plant In The Red River Claysupporting

confidence: 90%

Differential Response of Biomass Production and Nitrogen Uptake of Vegetable Amaranth to Two Types of Poultry Manure from Nigeria and Canada

Olatoberu¹,

Idowu²,

Adepetu³

et al. 2019

FNS

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Amaranthus cruentus is one of the sixty Amaranthus species of world. It is widely grown as a green leafy vegetable and for its grain in many tropical countries of Africa, Central and South American, Canada, Mexico and parts of Asia. Depleted soil fertility under intensive cultivation is a major limitation to production of the vegetable. The study investigated the effects of two types of poultry manure on biomass yield and nutrient uptake of Amaranth cruentus in a greenhouse at the

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“…The last attribute of FV that we intended to study was its direction. We found that the main axis of trait variation within populations is often related to variance in leaf nitrogen content, a trait linked to soil nitrogen uptake efficiency in fertile environments (Zatylny & St‐Pierre ) and which also strongly affects the plant's photosynthetic rate (Reich, Walters & Ellsworth ). This high variation in LNC within populations might be explained by the heterogeneity of the nitrogen supply in soils.…”

Section: Discussionmentioning

confidence: 99%

Unravelling the architecture of functional variability in wild populations of Polygonum viviparum L

et al. 2013

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Summary1. Functional variability (FV) of populations can be decomposed into three main features: the individual variability of multiple traits, the strength of correlations between those traits and the main direction of these correlations, the latter two being known as 'phenotypic integration'. Evolutionary biology has long recognized that FV in natural populations is key to determining potential evolutionary responses, but this topic has been little studied in functional ecology. 2. Here, we focus on the arctico-alpine perennial plant species Polygonum viviparum L.. We used a comprehensive sampling of seven functional traits in 29 wild populations covering the whole environmental niche of the species. The niche of the species was captured by a temperature gradient, which separated alpine stressful habitats from species-rich, competitive subalpine ones. We sought to assess the relative roles of abiotic stress and biotic interactions in shaping different aspects of functional variation within and among populations, that is, the multi-trait variability, the strength of correlations between traits and the main directions of functional trade-offs. 3. Populations with the highest extent of functional variability were found in the warm end of the gradient, whereas populations exhibiting the strongest degree of phenotypic integration were located in sites with intermediate temperatures. This could reveal both the importance of environmental filtering and population demography in structuring FV. Interestingly, we found that the main axes of multivariate functional variation were radically different within and across population. 4. Although the proximate causes of FV structure remain uncertain, our study presents a robust methodology for the quantitative study of functional variability in connection with species' niches. It also opens up new perspectives for the conceptual merging of intraspecific functional patterns with community ecology.

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Nitrogen Uptake, Leaf Nitrogen Concentration, and Growth of Saskatoons in Response to Soil Nitrogen Fertility

Cited by 9 publications

References 12 publications

Leaf traits of two Mediterranean perennial tussock grass species in relation to soil nitrogen and phosphorus availability

Leaf traits of two Mediterranean perennial tussock grass species in relation to soil nitrogen and phosphorus availability

Differential Response of Biomass Production and Nitrogen Uptake of Vegetable Amaranth to Two Types of Poultry Manure from Nigeria and Canada

Unravelling the architecture of functional variability in wild populations of Polygonum viviparum L

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