scholarly journals Mineral nutrient concentrations in sapwood and heartwood: a literature review

2002 ◽  
Vol 59 (7) ◽  
pp. 713-722 ◽  
Author(s):  
Pierre Meerts
Keyword(s):  
Literature Review ◽  
Mineral Nutrient ◽  
Nutrient Concentrations

Variability in crude protein and mineral nutrient concentrations of almonds

2018 ◽  
pp. 213-218 ◽  
Author(s):  
T. Gama ◽  
H.M. Wallace ◽  
S.J. Trueman ◽  
S.H. Bai
Keyword(s):  
Crude Protein ◽  
Mineral Nutrient ◽  
Nutrient Concentrations

scholarly journals Nitrogen Fertilization, Container Type, and Irrigation Frequency Affect Mineral Nutrient Uptake of Hydrangea

Water ◽  
2020 ◽  
Vol 12 (7) ◽  
pp. 1987
Author(s):  
Tongyin Li ◽  
Guihong Bi ◽  
Xiaojie Zhao ◽  
Richard L. Harkess ◽  
Carolyn Scagel
Keyword(s):  
Nutrient Uptake ◽  
Dilution Effect ◽  
Nutrient Content ◽  
Fertilization Rate ◽  
Mineral Nutrient ◽  
Nutrient Concentrations ◽  
Irrigation Frequency ◽  
Recycled Paper ◽  
Plastic Container ◽  
Container Type

Mineral nutrient uptake of Hydrangea macrophylla ‘Merritt’s Supreme’ affected by nitrogen (N) fertilization rate, container type, and irrigation frequency was investigated. Rooted liners of hydrangea plants were fertilized twice weekly with a N-free fertilizer plus five N rates including 0, 5, 10, 15, or 20 mM N from ammonium nitrate (NH4NO3), irrigated once or twice daily with the same total irrigation volume, and grown in two types of one-gallon containers: a black plastic container and a biodegradable container (biocontainer), made from recycled paper. Concentrations of calcium (Ca) and magnesium (Mg) averaged in the entire plant, and iron (Fe) and manganese (Mn) in roots had increasing trends with increasing N rate. By comparison, increasing N rate had a dilution effect on root phosphorus (P), stem and root potassium (K), stem Ca and Mg, and leaf boron (B) concentrations. In general, nutrient content of each tested element increased with increasing N rate in each structure, or total in the plant. When there was a significant container type effect, plastic containers consistently had increased nutrient concentrations and content compared to biocontainers. One irrigation per day was beneficial in increasing nutrient concentrations of P, Ca, and zinc (Zn) in different plant structures.

scholarly journals Sole-Source LED Lighting and Fertility Impact Shoot and Root Tissue Mineral Elements in Chinese Kale (Brassica oleracea var. alboglabra)

2020 ◽  
Author(s):  
T. Casey Barickman ◽  
Dean A. Kopsell ◽  
Carl E. Sams ◽  
Robert C. Marrow
Keyword(s):  
Brassica Oleracea ◽  
Sole Source ◽  
Mineral Nutrient ◽  
Nutrient Concentrations ◽  
Led Lighting ◽  
Led Light ◽  
Chinese Kale ◽  
Red Led ◽  
Root Tissues ◽  
Different Levels

The current study investigated the impacts of light quality and different levels of fertility on mineral nutrient concentrations in shoot and root tissues of Chinese kale (Brassica oleracea var. alboglabra). ‘Green Lance’ Chinese kale were grown under: 1) fluorescent/incandescent light; 2) 10% blue (447 ± 5 nm) / 90% red (627 ± 5 nm) LED light; 3) 20% blue / 80% red LED light; and 4) 40% blue / 60% red LED light as sole-source lighting at two different levels of fertility. All plants were harvested 30 d after seeding, and shoot and root tissues were analyzed for mineral nutrients. Lighting and fertility interacted to influence kale shoot and root mineral nutrient concentrations. Results indicate sole-source LED lighting used in production can impact mineral nutritional values of baby leafy greens now popular for the packaged market.

scholarly journals Effect of Arbuscular Mycorrhiza and Temperature Control on Plant Growth, Yield, and Mineral Content of Tomato Plants Grown Hydroponically

HortScience ◽  
2013 ◽  
Vol 48 (12) ◽  
pp. 1470-1477 ◽  
Author(s):  
Martin Makgose Maboko ◽  
Isa Bertling ◽  
Christian Phillipus Du Plooy
Keyword(s):  
Plant Growth ◽  
Nutrient Uptake ◽  
Temperature Control ◽  
Mycorrhizal Fungi ◽  
Nutrient Concentration ◽  
Growth Yield ◽  
Mineral Nutrient ◽  
Nutrient Concentrations ◽  
Mineral Concentration ◽  
Temperature Controlled

Mycorrhizal inoculation improves nutrient uptake in a range of host plants. Insufficient nutrient uptake by plants grown hydroponically is of major environmental and economic concern. Tomato seedlings, therefore, were treated with a mycorrhizal inoculant (Mycoroot™) at transplanting to potentially enhance nutrient uptake by the plant. Then seedlings were transferred to either a temperature-controlled (TC) or a non-temperature-controlled (NTC) tunnel and maintained using the recommended (100%) or a reduced (75% and 50%) nutrient concentration. Plants grown in the NTC tunnel had significantly poorer plant growth, lower fruit mineral concentration, and lower yield compared with fruit from plants in the TC tunnel. Leaves from plants in the NTC tunnel had higher microelement concentrations than those in the TC tunnel. Highest yields were obtained from plants fertigated with 75% of the recommended nutrient concentration, and not from the 100% nutrient concentration. Application of arbuscular mycorrhizal fungi (AMF) neither enhanced plant growth, nor yield, nor fruit mineral nutrient concentrations. However, temperature control positively affected the fruit Mn and Zn concentration in the TC tunnel following AMF application.

scholarly journals Physiological and Nutritional Responses of ‘HB’ Pummelo [Citrus grandis (L.) Osbeck ‘Hirado Buntan’] to the Combined Effects of Low pH Levels and Boron Deficiency

HortScience ◽  
2020 ◽  
Vol 55 (4) ◽  
pp. 449-456
Author(s):  
Gaofeng Zhou ◽  
Bixian Li ◽  
Jianmei Chen ◽  
Fengxian Yao ◽  
Guan Guan ◽  
...  
Keyword(s):  
Gas Exchange ◽  
Southern China ◽  
Leaf Gas Exchange ◽  
Mineral Nutrients ◽  
Low Ph ◽  
Stress Factors ◽  
Mineral Nutrient ◽  
Nutrient Concentrations ◽  
Boron Deficiency ◽  
Combined Effects

Soil acidification and boron (B) starvation are two dominant abiotic stress factors impacting citrus production in the red soil region of southern China. To evaluate the combined effects of low pH and B deficiency on plant growth, gas exchange parameters, and the concentrations of B and other mineral nutrients, ‘HB’ pummelo seedlings were treated under B deficiency (0 μM H3BO3) or adequate B (23 μM H3BO3) conditions at various low pH levels (4.0, 5.0, and 6.0). The seedlings were grown with modified half-strength Hoagland’s solution under greenhouse conditions for 12 weeks. Plant biomass, leaf area, seedling height, and root traits were remarkably inhibited by low pH and B deficiency stresses, and these parameters were extremely reduced with the decrease in pH levels. After 12 weeks of treatment, typical stress symptoms associated with B deficiency in citrus leaf were observed, with more severe symptoms observed at pH 4.0 and 5.0 than at pH 6.0. Leaf gas exchange parameter measurements showed that leaf photosynthesis was significantly inhibited under both low pH and B-deficient conditions. Notably, the lower the pH level, the greater the inhibition under both normal and deficient B conditions. Further investigations of the mineral nutrient concentrations showed that under both low pH and B deficiency, the concentrations of B and other mineral nutrients were influenced remarkably, particularly at pH 4.0 and 5.0. The physiological and nutritional results of the ‘HB’ pummelo seedlings indicated that low pH can exacerbate the effects of B deficiency to a certain extent.

scholarly journals Seasonal Variation in Mineral Nutrient Content of Primocane-fruiting Blackberry Leaves

HortScience ◽  
2015 ◽  
Vol 50 (4) ◽  
pp. 540-545 ◽  
Author(s):  
Bernadine C. Strik
Keyword(s):  
Nutrient Concentration ◽  
Nutrient Status ◽  
Mineral Nutrient ◽  
Nutrient Concentrations ◽  
Plant Nutrient ◽  
Green Fruit ◽  
Stage Of Development ◽  
Significant Difference ◽  
Leaf Sampling ◽  
Fruit Stage

Primocane-fruiting blackberry (Rubus L. subgenus Rubus, Watson) cultivars, Prime-Jan® and Prime-Jim®, grown only for a primocane crop, were studied for 2 years to evaluate whether this type of blackberry should be sampled at a certain stage of development or time of season to best evaluate plant nutrient status. Leaves were sampled every 2 weeks from a primocane height of ≈0.75 m in spring through fruit harvest in autumn and were analyzed to determine concentration of macro- and micronutrients. Primocanes were summer pruned at 1.4 m, by hedging to a height of 1.0 m, to induce branching, a standard commercial practice. Leaf nutrient concentration was related to stage of primocane growth and development and whether the leaves originated on the main cane or on the branches that resulted from summer pruning. Nutrient concentration of leaves sampled on the main primocane from early growth in spring until early branch growth in summer was significantly affected by cultivar, year, and week for most nutrients. When leaf sampling occurred on the older leaves of the main cane (for 4 weeks after hedging), the concentration of Ca, Mg, B, Fe, Mn, and Al increased, likely a result of the relative immobility of most of these nutrients. When samples were taken on primocane branches, leaf N, Mg, S, B (2009 only), Fe, Mn, Cu (2009 only), Zn, and Al concentrations did not differ between samples taken 6–8 weeks after summer pruning or hedging. Leaf K and Ca were more stable when sampling was done from weeks 8 to 10 (early bloom to green/early red fruit). There was a significant difference in leaf P among all weeks sampled during this period. A sample date corresponding to early green fruit stage (week 8) would thus likely provide the best compromise for assessing plant nutrient status in this crop. During this stage of development the nutrient concentrations measured for both cultivars and years, were within the present recommended nutrient sufficiency levels for other blackberry and raspberry crops for all except leaf K and P which were below current standards. The results suggest leaf sampling primocane-fruiting blackberry at the early green fruit stage (about 8 weeks after summer pruning) rather than a particular calendar date. The present leaf sufficiency range for P and K may need to be lowered for this crop. In addition, sampling cultivars separately for tissue analysis would still be advised to better manage nutrient programs.

scholarly journals Relationships between Nut Size, Kernel Quality, Nutritional Composition and Levels of Outcrossing in Three Macadamia Cultivars

Plants ◽  
2020 ◽  
Vol 9 (2) ◽  
pp. 228 ◽  
Author(s):  
Tarran E. Richards ◽  
Wiebke Kämper ◽  
Stephen J. Trueman ◽  
Helen M. Wallace ◽  
Steven M. Ogbourne ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Relative Abundance ◽  
Economic Value ◽  
Nutritional Composition ◽  
Mineral Nutrient ◽  
Nutrient Concentrations ◽  
Cross Pollination ◽  
Kernel Quality ◽  
Healthy Diets ◽  
Different Levels

Tree nuts play an important role in healthy diets, but their economic value and nutritional quality may be affected by their size and paternity. We assessed relationships between nut size and kernel recovery, the incidence of whole kernels, fatty acid composition and mineral nutrient concentrations in three macadamia cultivars, “Daddow”, “816” and “A4”. We determined to what extent differences in nut size and quality were the result of different levels of cross- or self-paternity. Small nuts of all cultivars had lower kernel recovery than large nuts, and small nuts provided lower incidence of whole kernels in “Daddow” and “A4”. Small kernels had a lower relative abundance of the saturated fatty acid, palmitic acid, in all cultivars and higher relative abundance of the unsaturated fatty acid, oleic acid, in “Daddow” and “A4”. Small kernels had higher concentrations of many essential nutrients such as nitrogen and calcium, although potassium concentrations were lower in small kernels. Most nuts arose from cross-pollination. Therefore, nut size and kernel quality were not related to different levels of cross- and self-paternity. Identified cross-paternity was 88%, 78% and 90%, and identified self-paternity was 3%, 2% and 0%, for “Daddow”, “816” and “A4”, respectively. Small macadamia kernels are at least as nutritious as large macadamia kernels. High levels of cross-paternity confirmed that many macadamia cultivars are predominantly outcrossing. Macadamia growers may need to closely inter-plant cultivars and manage beehives to maximise cross-pollination.

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