Separation of hollow heart potato tubers by means of size grading, specific gravity, and x-ray examination

1950 ◽  
Vol 27 (6) ◽  
pp. 214-222 ◽  
Author(s):  
R. E. Nylund ◽  
J. M. Lutz
Keyword(s):  
Specific Gravity ◽  
Hollow Heart ◽  
Potato Tubers ◽  
X Ray ◽  
Size Grading

X-Ray Scattering Study on Edible Potato Tubers (S. Tuberosum)

2000 ◽  
Vol 321-324 ◽  
pp. 1125-1130 ◽  
Author(s):  
T. Väänänen ◽  
M. Toivola ◽  
K. Jokela ◽  
M. Laakkonen ◽  
M. Torkkeli ◽  
...  
Keyword(s):  
Potato Tubers ◽  
X Ray ◽  
X Ray Scattering ◽  
Scattering Study ◽  
Ray Scattering

Effect of foliar applications of chloride and sulfate on the specific gravity of white potato tubers

1960 ◽  
Vol 37 (11) ◽  
pp. 377-378 ◽  
Author(s):  
H. W. Gausman ◽  
G. O. Estes ◽  
R. A. Struchtemeyer
Keyword(s):  
Specific Gravity ◽  
Potato Tubers ◽  
White Potato

scholarly journals Agronomic and Environmental Aspects of Conservation Agriculture on Wheat Crop Production

2019 ◽  
Vol 7 (2) ◽  
pp. 161-166
Author(s):  
A. Bista ◽  
T.N. Joshi ◽  
K. Biswokarma ◽  
S. Yadav
Keyword(s):  
Crop Production ◽  
Solanum Tuberosum L ◽  
Sugar Content ◽  
Hollow Heart ◽  
Quality Parameters ◽  
Wheat Crop ◽  
Optimum Dose ◽  
Potato Tubers ◽  
Tuber Production ◽  
Potassium Application

Potato (Solanum tuberosum L.) is one of the major vegetable crops of Nepal. Potato is grown all over the globe and consumed as either vegetable or staple food depending upon the crop production scenario. It is also an integral part of human diet. Potato is a high nutrient mining crop and needs higher fertilization for economic tuber production. Despite sufficient application of Nitrogen (N) and Phosphorus (P2O5), low replenishment and widespread potassium deficiency are limiting the potato production in Nepalese condition. Growth parameters such as plant height, leaf area and chlorophyll% was positively correlated with potassium application. Potassium alleviated stresses of frost and drought and reduced incidence of diseases like late blight, black scurf and hollow heart. Potassium also decreased the reducing sugar content and improved chips color and quality. Similarly, potassium application before harvest was found to increase storage life of potato tubers. Furthermore, potassium application significantly increased the yield of potato tubers and quality parameters such as Vitamin C content and specific gravity. Source of potassium and method of potassium application also affected growth, yield and quality parameters. Soil application of potassium in splits coupled with foliar spay was found to perform better.  Optimum dose of potassium was recommended for economic tuber production Int. J. Appl. Sci. Biotechnol. Vol 7(2): 161-166  

Evaluating the Extender Characteristics of Some Local Materials in Akure, Ondo State, Nigeria for Applications in the Paints Industry

MRS Advances ◽  
2019 ◽  
Vol 4 (43) ◽  
pp. 2355-2365
Author(s):  
Ifeoma Janefrances Umunakwe ◽  
Reginald Umunakwe ◽  
Victor Adeola Popoola ◽  
Uzoma Samuel Nwigwe ◽  
Akinlabi Oyetunji
Keyword(s):  
Refractive Index ◽  
Specific Gravity ◽  
Mesh Size ◽  
Xrd Analysis ◽  
Volatile Matter ◽  
Oxide Content ◽  
Oil Absorption ◽  
X Ray Diffraction ◽  
X Ray ◽  
Ondo State

ABSTRACTSoil samples were obtained from three different locations; Ijapo, Ibule and FUTA North Gate in Akure, Ondo State, Nigeria. The materials were dried, crushed and calcined by heating the samples in a muffle furnace to 850 °C, holding for three hours and and then brought out of the furnace to cool in the laboratory so that the organic and volatile matter escaped, and the oxide content increased. The calcined materials were milled with a ball mill and then sieved with 75 µm mesh size British standard sieves. The samples that passed through the sieves were collected for analysis to determine their extender characteristics through x-ray flouresence (XRF) spectroscopy, x-ray diffraction (XRD) analysis, scanning electron microscopy (SEM), specific gravity, oil absorption, pH and refractive index measurements as well as the determination of their resistance to chemicals. XRF results showed that materials are kaolinite in nature. XRD results showed the phase compositions of each sample as materials suitable for applications as extenders in the paints industry. SEM micrographs showed the homogeneity of the samples from Ijapo and FUTA North Gate while the sample from Ibule showed segregation of the phase compositions. The specific gravity, pH, oil absorption and refractive index of each material were within the range of those of commercial extenders used in the paints industry. The calcined materials were found to be resistant to various chemical media. The characterized materials will be suitable as extenders and pigments in the paints industry.

scholarly journals Structure and Mechanical Properties of Al-Li Alloys as Cast

2013 ◽  
Vol 13 (2) ◽  
pp. 5-10 ◽  
Author(s):  
J. Augustyn-Pieniążek ◽  
H. Adrian ◽  
S. Rzadkosz ◽  
M. Choroszyński
Keyword(s):  
Mechanical Properties ◽  
Specific Gravity ◽  
Light Microscopy ◽  
Aluminium Alloys ◽  
Broad Application ◽  
X Ray ◽  
High Crack ◽  
High Crack Resistance ◽  
Lithium Alloys ◽  
Ray Methods

Abstract The high mechanical properties of the Al-Li-X alloys contribute to their increasingly broad application in aeronautics, as an alternative for the aluminium alloys, which have been used so far. The aluminium-lithium alloys have a lower specific gravity, a higher nucleation and crack spread resistance, a higher Young’s module and they characterize in a high crack resistance at lower temperatures. The aim of the research planned in this work was to design an aluminium alloy with a content of lithium and other alloy elements. The research included the creation of a laboratorial melt, the microstructure analysis with the use of light microscopy, the application of X-ray methods to identify the phases existing in the alloy, and the microhardness test.

THE EFFECT OF SEEDPIECE POPULATION AND HARVEST DATE ON YIELD AND ECONOMIC VALUE OF CARLTON POTATOES IN MANITOBA

1989 ◽  
Vol 69 (3) ◽  
pp. 1019-1025
Author(s):  
B. L. REX ◽  
W. A. RUSSELL ◽  
H. R. WOLFE
Keyword(s):  
Solanum Tuberosum ◽  
Specific Gravity ◽  
Positive Relationship ◽  
Solanum Tuberosum L ◽  
Economic Value ◽  
Hollow Heart ◽  
Growing Seasons ◽  
Rainfed Conditions ◽  
Tuber Specific Gravity ◽  
Final Harvest

The effect of seedpiece population on Carlton potatoes for the early tablestock market was evaluated under rainfed conditions in southern Manitoba over the 1982, 1983 and 1985 growing seasons. Populations of 21.7, 26.3, 33.3, and 45.5 thousand seedpieces per hectare were harvested 75, 85 and 95 d after planting each year. Total and marketable tuber yields increased with population. Tuber specific gravity increased with population in 1982 and in the first two harvests in 1983, but no trends were observed in 1985 and in the final harvest in 1983. The incidence of hollow heart in marketable tubers was very low in all 3 yr, and was not related to seedpiece population or date of harvest. Net crop value (NCV) usually increased with successive harvests within each year, and generally showed a positive relationship with seedpiece population.Key words: Potato, Solanum tuberosum L., Carlton, seedpiece population, hollow heart, specific gravity

Kingite, a new hydrated aluminium phosphate mineral from Robertstown, South Australia

1957 ◽  
Vol 31 (236) ◽  
pp. 351-357 ◽  
Author(s):  
K. Norrish ◽  
Lillian E. R. Rogers ◽  
R. E. Shapter
Keyword(s):  
Refractive Index ◽  
Chemical Composition ◽  
Specific Gravity ◽  
Diffraction Pattern ◽  
South Australia ◽  
X Ray Diffraction ◽  
Aluminium Phosphate ◽  
X Ray ◽  
Phosphate Mineral ◽  
Hydrated Aluminium

SummaryA new hydrated aluminium phosphate mineral, kingite, from phosphate workings near Robertstown, South Australia, has an idealized formula Al2O3.Al(OH)3.P2O5.9H2O, with some replacement of OH by F. The specific gravity is 2·2 to 2·3, refractive index 1·514, and percentage chemical composition Al2O3 31·92, P2O5 28·63, H2O 37·93. The three strongest lines on the X-ray diffraction pattern are 9·1, 3·45, and 3·48 Å. Kingite changes to a less hydrated phase between 154° C. and 163° C., which is also considered to be a new aluminium phosphate (meta-kingite) with idealized formula Al2O3.Al(OH)3.P2O5.4H2O. The strongest lines of its X-ray diffraction pattern are at 7·4, 5·02, and 37·19 Å.

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