Influence of foliar fertilisation with calcium fertilisers on the firmness and chemical composition of two highbush blueberry cultivars

2014 ◽  
Author(s):  
Ireneusz Ochmian ◽  
Ireneusz Ochmian ◽  
Karolina Kozos
Keyword(s):  
Chemical Composition ◽  
Highbush Blueberry ◽  
Foliar Fertilisation

scholarly journals The Impact of Foliar Application of Calcium Fertilizers on the Quality of Highbush Blueberry Fruits Belonging to the ‘Duke’ Cultivar

2012 ◽  
Vol 40 (2) ◽  
pp. 163 ◽  
Author(s):  
Ireneusz Dariusz OCHMIAN
Keyword(s):  
Chemical Composition ◽  
Calcium Chloride ◽  
Foliar Application ◽  
Fruit Size ◽  
Mechanical Damage ◽  
Calcium Content ◽  
Highbush Blueberry ◽  
The West ◽  
The Impact

The studies were conducted in the period of 2010-2011, in the Laboratory of Orcharding at the West Pomeranian University of Technology in Szczecin, and related to the bushes of the highbush blueberry of the Duke cultivar. The authors examined the impact of foliar calcium fertlizers (Calcinit, Calcium chloride, Fruton Calcium Calcium, Folanx®Ca29 Lebosol Calcium Forte Calcium Forte) on the fruit size and firmness, their chemical composition, content of macronutrients in the foliage and fruits, and their colour. It was found that the applied fertlizers have varied impact on the examined attributes. The bushes sprayed with the Lebosol Calcium Forte and Calcinit preparations had big fruits with a high content of K and Mg, and dark foliage. The application of the Lebosol Calcium Forte fertilizer increased the content of polyphenols and vitamin C in the fruits. The smallest amounts of such compounds were determined in the fruits sprayed with the Calcinit fertilizer. The highest firmness and resistance to mechanical damage were achieved in the case of the fruits collected from the bushes sprayed with the foliar fertlizers containing calcium chloride, such as Fruton Calcium and Folanx Ca29. It was determined that the application of the calcium preparations resulted in the increase of the calcium content in the fruits and foliage. The highest amounts of this element were determined in the case of the plants sprayed with the Folanx Ca29 and Lebosol Calcium Forte preparations.

scholarly journals Chemical composition of sea-buckthorn and highbush blueberry fruits grown in the Republic of Belarus

2019 ◽  
Vol 2 (2) ◽  
pp. 121
Author(s):  
Maria Zenkova ◽  
Julia Pinchykova
Keyword(s):  
Chemical Composition ◽  
Organic Acids ◽  
Sugar Content ◽  
Vaccinium Corymbosum ◽  
Climatic Conditions ◽  
Solid Content ◽  
Sea Buckthorn ◽  
Highbush Blueberry ◽  
Pectin Content ◽  
The Republic

Chemical composition of sea-buckthorn and highbush blueberry fruits determines their value while using them fresh or processed. Berries have distinctive characteristics depending on a variety, soil and climatic conditions and growing techniques. The object of the researches have been Sea-buckthorn (Hippophae L.) of three varieties (Podarok sadu, Trofimovskaya, Botanicheskaya) and Highbush Blueberry (Vaccinium corymbosum L.) of five varieties (Duke, Bluetta, Bluecrop, Northland, Coville) grown in the Republic of Belarus. Sea-buckthorn and Highbush Blueberry fruits chemical composition has been studied during a three-year cycle of monitoring using standard methods and in accordance with technical legal acts of the Republic of Belarus. Solid content (13,0-15,3%), sugar content (4,00-4,80%), organic acids (1,10-2,05%), nitrogen substances content (0,29-0,46%), lipids (3,6-6,2%), pectin content (0,40-0,50%), fiber (3,20-4,90%), minerals, vitamin С (44,7-78,7 мг/100г), β-carotene (4,4-13,2 мг/100г) have been studied in Sea-buckthorn (Hippophae L.). Solid content (12,2-15,1%), sugar content (2,73-3,96%), organic acids (0,59-0,95%), pectin content (0,57-0,97%), fiber (1,20-1,68%), bioflavonoids (276-368 мг/100 г), bioflavonoids complex fractional composition (anthocyanins, leucoanthocyanins, catechines, flavonols), vitamin С (60,5-72,2 мг/100 г) and mineral content have been studied in Highbush Blueberry (Vaccinium corymbosum L.). Exogenous contaminants content (arsenic, heavy metals), hygienical safety indexes, caesium 137 radionuclides content have been investigated in the fruits. Specific varieties characterictics of Sea-buckthorn (Hippophae L.) and Highbush Blueberry (Vaccinium corymbosum L.) fruit chemical composition have been determined. The studied fruit is fully safe and can be recommended to be used both fresh and processed.

scholarly journals Effect of substrate type on the field performance and chemical composition of highbush blueberry cv.Patriot

2008 ◽  
Vol 19 (1) ◽  
pp. 69 ◽  
Author(s):  
I. OCHMIAN ◽  
J. GRAJKOWSKI ◽  
K. SKUPIEN
Keyword(s):  
Antioxidant Activity ◽  
Chemical Composition ◽  
Field Performance ◽  
Vaccinium Corymbosum ◽  
Total Sugar ◽  
Soluble Solids ◽  
Highbush Blueberry ◽  
Phenolic Composition ◽  
Substrate Type ◽  
Quercetin Derivatives

The aim of a 3-year study was to compare the effect of substrate type (peat, sawdust and cocoa husk) on the yield, fruit quality, general and phenolic composition, and antioxidant activity of highbush blueberry (Vaccinium corymbosum L.) cultivar Patriot. The largest berries and the highest yield were obtained from bushes grown in sawdust (3.661 kg ha-1). Berries from bushes grown in cocoa husk had the highest content of N (14.25 g kg-1), P (1.17 g kg-1), K (6.51 g kg-1), and Zn (8.78 mg kg-1), as well as P (1.26 g kg-1) and K (6.99 g kg-1) in the leaves. Both the leaves and fruits of plants grown in sawdust had higher Cu concentrations (3.89 and 3.01 mg kg-1). Berries from sawdust-grown bushes had the highest soluble solids (13.1%) and total sugar (10.80 g 100 g-1) content. The fruits obtained from peat-grown bushes exhibited enhanced antioxidant capacity (38.6 ìmol Trolox g-1). However, the highest levels of phenolics were noted in berries produced in the cocoa husk (208.29 mg 100 g-1) and peat-bed system (174.07 mg 100 g-1). Regardless of the type of substrate used, the following phenols were identified (in descending order): anthocyanins>chlorogenic acid>flavonols. Delphinidin-glycosides were the most abundant pigments, and cyanidin, peonidin, petunidin, and malvidin-glycosides were also detected. Total flavonol content (quercetin derivatives and kaempferol 3-rutinoside) was not significantly affected by the type of substrate.;

The Origin of the Moon

1962 ◽  
Vol 14 ◽  
pp. 149-155 ◽  
Author(s):  
E. L. Ruskol
Keyword(s):  
Chemical Composition ◽  
Solar System ◽  
The Moon ◽  
The Earth ◽  
The Difference ◽  
Origin Of The Moon

The difference between average densities of the Moon and Earth was interpreted in the preceding report by Professor H. Urey as indicating a difference in their chemical composition. Therefore, Urey assumes the Moon's formation to have taken place far away from the Earth, under conditions differing substantially from the conditions of Earth's formation. In such a case, the Earth should have captured the Moon. As is admitted by Professor Urey himself, such a capture is a very improbable event. In addition, an assumption that the “lunar” dimensions were representative of protoplanetary bodies in the entire solar system encounters great difficulties.

On the Inhomogeneity of Chemical Composition over the Surface of 21 Per

1976 ◽  
Vol 32 ◽  
pp. 343-349
Author(s):  
Yu.V. Glagolevsky ◽  
K.I. Kozlova ◽  
V.S. Lebedev ◽  
N.S. Polosukhina
Keyword(s):  
Chemical Composition ◽  
Spectral Line ◽  
Variable Star ◽  
Radial Velocities ◽  
Crimean Astrophysical Observatory ◽  
Line Intensities ◽  
Magnetic Variable

SummaryThe magnetic variable star 21 Per has been studied from 4 and 8 Å/mm spectra obtained with the 2.6 - meter reflector of the Crimean Astrophysical Observatory. Spectral line intensities (Wλ) and radial velocities (Vr) have been measured.

Structural Studies on Mitotic Spindle Fibres

1978 ◽  
Vol 36 (3) ◽  
pp. 615-626
Author(s):  
J.R. Mcintosh
Keyword(s):  
Chemical Composition ◽  
Mitotic Spindle ◽  
Structural Studies ◽  
Mitotic Apparatus ◽  
Chemical Studies ◽  
Medical Interest ◽  
Spindle Fibres

The mitotic apparatus is a structure of obvious biological and medical interest, but it has proved to be a difficult cellular machine to understand. The chemical composition of the spindle is only slightly elucidated, largely because of the difficulties in preparing useful isolates of the structure. Chemical studies of the mitotic spindle have been reviewed elsewhere (Mcintosh, 1977), and will not be discussed further here. One would think that structural studies on the mitotic apparatus (MA) in situ would be straightforward, but even with this approach there is some disagreement in the results obtained with various methods and by different investigators. In this paper I will review briefly the approaches which have been used in structural studies of the MA, pointing out the strengths and problems of each approach. I will summarize the principal findings of the different methods, and identify what seem to be fruitful avenues for further work.

Effects of 5-5'-Diphenyl-2-thiohydantoin (DPTH) and Thyroxine on the Ultrastructure and Chemical Composition of Rat Liver

1971 ◽  
Vol 29 ◽  
pp. 570-571
Author(s):  
E. A. Elfont ◽  
R. B. Tobin ◽  
D. G. Colton ◽  
M. A. Mehlman
Keyword(s):  
Chemical Composition ◽  
Rat Liver ◽  
Future Study ◽  
Mode Of Action ◽  
Liver Mitochondria ◽  
Rat Liver Mitochondria ◽  
Effective Inhibitor ◽  
Biochemical Effects ◽  
Glycerophosphate Dehydrogenase ◽  
Stimulation Of

Summary5,-5'-diphenyl-2-thiohydantoin (DPTH) is an effective inhibitor of thyroxine (T4) stimulation of α-glycerophosphate dehydrogenase in rat liver mitochondria. Because this finding indicated a possible tool for future study of the mode of action of thyroxine, the ultrastructural and biochemical effects of DPTH and/or thyroxine on rat liver mere investigated.Rats were fed either standard or DPTH (0.06%) diet for 30 days before T4 (250 ug/kg/day) was injected. Injection of T4 occurred daily for 10 days prior to sacrifice. After removal of the liver and kidneys, part of the tissue was frozen at -50°C for later biocheailcal analyses, while the rest was prefixed in buffered 3.5X glutaraldehyde (390 mOs) and post-fixed in buffered 1Z OsO4 (376 mOs). Tissues were embedded in Araldlte 502 and the sections examined in a Zeiss EM 9S.Hepatocytes from hyperthyroid rats (Fig. 2) demonstrated enlarged and more numerous mitochondria than those of controls (Fig. 1). Glycogen was almost totally absent from the cytoplasm of the T4-treated rats.

Applications of Photoelectron Microscopy

1976 ◽  
Vol 34 ◽  
pp. 506-507
Author(s):  
William J. Baxter
Keyword(s):  
Electron Microscopy ◽  
Thermal Decomposition ◽  
Chemical Composition ◽  
Ultraviolet Radiation ◽  
Thin Layer ◽  
Edge Effects ◽  
Electron Optics ◽  
Surface Layers ◽  
Crystalline Orientation ◽  
Fluorescent Screen

In this form of electron microscopy, photoelectrons emitted from a metal by ultraviolet radiation are accelerated and imaged onto a fluorescent screen by conventional electron optics. image contrast is determined by spatial variations in the intensity of the photoemission. The dominant source of contrast is due to changes in the photoelectric work function, between surfaces of different crystalline orientation, or different chemical composition. Topographical variations produce a relatively weak contrast due to shadowing and edge effects.Since the photoelectrons originate from the surface layers (e.g. ∼5-10 nm for metals), photoelectron microscopy is surface sensitive. Thus to see the microstructure of a metal the thin layer (∼3 nm) of surface oxide must be removed, either by ion bombardment or by thermal decomposition in the vacuum of the microscope.

Thermomechanical Treatment of a 4340 Ni-Cr-Mo Alloy Steel

1981 ◽  
Vol 39 ◽  
pp. 314-315 ◽  
Author(s):  
M.T. Jahn ◽  
J.C. Yang ◽  
C.M. Wan
Keyword(s):  
Mechanical Property ◽  
Chemical Composition ◽  
Alloy Steel ◽  
Thermomechanical Treatment ◽  
Room Temperature ◽  
Good Combination ◽  
Thermal Treatments ◽  
Low Carbon ◽  
4340 Steel ◽  
Good Improvement

4340 Ni-Cr-Mo alloy steel is widely used due to its good combination of strength and toughness. The mechanical property of 4340 steel can be improved by various thermal treatments. The influence of thermomechanical treatment (TMT) has been studied in a low carbon Ni-Cr-Mo steel having chemical composition closed to 4340 steel. TMT of 4340 steel is rarely examined up to now. In this study we obtain good improvement on the mechanical property of 4340 steel by TMT. The mechanism is explained in terms of TEM microstructures4340 (0.39C-1.81Ni-0.93Cr-0.26Mo) steel was austenitized at 950°C for 30 minutes. The TMTed specimen (T) was obtained by forging the specimen continuously as the temperature of the specimen was decreasing from 950°C to 600°C followed by oil quenching to room temperature. The thickness reduction ratio by forging is 40%. The conventional specimen (C) was obtained by quenching the specimen directly into room temperature oil after austenitized at 950°C for 30 minutes. All quenched specimens (T and C) were then tempered at 450, 500, 550, 600 or 650°C for four hours respectively.

Sign in / Sign up

Export Citation Format

Share Document