scholarly journals Evaluation of temporal variability on tissue nutrient concentrations of canola

age ◽  
2022 ◽  
Vol 5 (1) ◽  
Author(s):  
Vaughn Reed ◽  
Apurba K. Sutradhar ◽  
D. Brian Arnall ◽  
Josh Lofton
Keyword(s):  
Temporal Variability ◽  
Nutrient Concentrations ◽  
Tissue Nutrient Concentrations

scholarly journals Spatio-temporal variability of marine primary and export production in three global coupled climate carbon cycle models

2007 ◽  
Vol 4 (3) ◽  
pp. 1877-1921 ◽  
Author(s):  
B. Schneider ◽  
L. Bopp ◽  
M. Gehlen ◽  
J. Segschneider ◽  
T. L. Frölicher ◽  
...  
Keyword(s):  
Carbon Cycle ◽  
Temporal Variability ◽  
Satellite Observations ◽  
Future Climate Change ◽  
Nutrient Concentrations ◽  
Ocean Colour ◽  
Coupled Models ◽  
Low Latitude ◽  
Export Production ◽  
The Impact

Abstract. This study compares spatial and temporal variability in net primary productivity (PP) and particulate organic carbon (POC) export production (EP) from three different coupled climate carbon cycle models (IPSL, MPIM, NCAR) with observation-based estimates derived from satellite measurements of ocean colour and inverse modelling. Satellite observations of ocean colour have shown that temporal variability of PP on the global scale is largely dominated by the permanently stratified, low-latitude ocean (Behrenfeld et al., 2006)\\nocite{Behrenfeld06} with stronger stratification (higher SSTs) leading to negative PP anomalies and vice versa. Results from all three coupled models confirm the role of the low-latitude, permanently stratified ocean for global PP anomalies. Two of the models also reproduce the inverse relationship between stratification (SST) and PP, especially in the equatorial Pacific. With the help of the model results we are able to explain the chain of cause and effect leading from stratification (SST) through nutrient concentrations to PP and finally to EP. There are significant uncertainties in observational PP and especially EP. Our finding of a good agreement between independent estimates from coupled models and satellite observations provides increased confidence that such models can be used as a first basis to estimate the impact of future climate change on marine productivity and carbon export.

Wine Grape Tissue Nutrient Concentrations in the Inland Pacific Northwest

2012 ◽  
Vol 43 (1-2) ◽  
pp. 21-27 ◽  
Author(s):  
Joan R. Davenport ◽  
Jeffrey D. Lunden ◽  
Tanya Winkler
Keyword(s):  
Pacific Northwest ◽  
Nutrient Concentrations ◽  
Wine Grape ◽  
Tissue Nutrient Concentrations

Spatial and temporal variability in nutrient concentrations in Liverpool Bay, a temperate latitude region of freshwater influence

2011 ◽  
Vol 61 (12) ◽  
pp. 2181-2199 ◽  
Author(s):  
Naomi Greenwood ◽  
David J. Hydes ◽  
Claire Mahaffey ◽  
Andrew Wither ◽  
Jon Barry ◽  
...  
Keyword(s):  
Temporal Variability ◽  
Nutrient Concentrations ◽  
Spatial And Temporal Variability ◽  
Temperate Latitude ◽  
Liverpool Bay ◽  
Latitude Region ◽  
Freshwater Influence

scholarly journals Controlled-release Fertilizer during Cutting Propagation Affects Growth and Tissue Nutrient Concentrations of Rooted Cuttings of Annual Bedding Plants

HortScience ◽  
2014 ◽  
Vol 49 (2) ◽  
pp. 152-159 ◽  
Author(s):  
Christopher J. Currey ◽  
Roberto G. Lopez
Keyword(s):  
Controlled Release ◽  
Dry Mass ◽  
Water Soluble ◽  
Nutrient Concentrations ◽  
Controlled Release Fertilizer ◽  
Bedding Plants ◽  
Tissue Nutrient Concentrations ◽  
Soluble Fertilizer ◽  
Soilless Substrate ◽  
The Impact

Our objectives were to quantify the effects of controlled-release fertilizer (CRF) on the growth, morphology, and tissue nutrient concentration of annual bedding plants during propagation. Unrooted cuttings of Angelonia angustifolia ‘AngelFace White’ and ‘Sundancer Pink’, Impatiens hawkeri ‘Celebrette Apricot’ and ‘Celebrette Rose Hot’, Nemesia fruticans ‘Bluebird’ and ‘Raspberry Sachet’, Pelargonium ×hortorum ‘Savannah Red’, and Petunia ×hybrida ‘Cascadia Marshmallow Pink’ and ‘Suncatcher Yellow’ were received from a commercial propagator. Cuttings were immediately stuck individually in cells containing soilless substrate supplemented with 0, 3, 6, 12, or 24 g·L−1 CRF (Osmocote Plus 15–3.9–10 3–4 month) and placed under clear mist water or cuttings were stuck in substrate containing no CRF and fertilized with water-soluble fertilizer beginning immediately after placing cuttings into propagation. Shoot dry mass of cuttings grown in substrates containing up to 12 or 24 g·L−1 CRF increased by up to 150% for some taxa compared with unfertilized cuttings. Incorporating CRFs into propagation substrates increased the concentration of nitrogen (N), phosphorus (P), and potassium (K) in tissues by up to 103%, 42%, and 137%, respectively, compared with unfertilized cuttings. Additionally, tissue nutrient concentrations for cuttings fertilized with 6 g·L−1 CRF or greater were similar to cuttings receiving water-soluble fertilizer (WSF). When the impact of CRF on growth and nutrient concentrations are taken together, our results indicate that CRF is a fertilization application technology that holds promise for use during propagation of herbaceous stem-tip cuttings.

scholarly journals Nutritional disorder in Pfaffia glomerata by mercury excess in nutrient solution

2015 ◽  
Vol 46 (2) ◽  
pp. 279-285 ◽  
Author(s):  
Nicéia Spanholi Calgaroto ◽  
Fernando Teixeira Nicoloso ◽  
Luciane Belmonte Pereira ◽  
Denise Cargnelutti ◽  
Fabiane Goldschmidt Antes ◽  
...  
Keyword(s):  
Nutrient Solution ◽  
The Other ◽  
Nutrient Concentrations ◽  
Nutritional Disorder ◽  
Pfaffia Glomerata ◽  
P Concentration ◽  
Other Hand ◽  
Fe And Mn ◽  
Tissue Nutrient Concentrations ◽  
Mn Concentrations

ABSTRACT: The mineral nutritional homeostasis in response to different concentrations of Hg (0, 25 and 50μM) was evaluated in Pfaffia glomerata plant. The exposure to the highest level of Hg (50µM) caused a decreasing in shoot and root fresh weights of 15.5% and 20%, respectively. Both shoot and root Hg concentrations increased linearly with increasing external Hg concentrations. Ca concentration decreased in shoot only at 50µM Hg, whereas shoot K and Mg concentrations decreased at both 25 and 50µM Hg, when compared to the control. A significant decrease in Cu, Zn, Fe and Mn concentrations in plants exposed to Hg was observed, but most Zn, Mn, and Cu in the roots. On the other hand, P concentration increased in both root and shoot of plants exposed at 25 and 50µM Hg, whereas Na concentration increased only in the root at 25 and 50µM Hg exposure. In general, tissue nutrient concentrations in P. glomerata plantlets exposed to Hg were significantly decreased, which indicates that the Hg may cause alteration on the mineral nutritional homeostasis of this species.

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