Studies of the measurement and interpretation of potato sprout growth

1978 ◽  
Vol 90 (2) ◽  
pp. 335-340 ◽  
Author(s):  
D. C. E. Wurr
Keyword(s):  
Linear Relationship ◽  
Field Performance ◽  
Tuber Weight ◽  
Potato Tubers ◽  
Good Linear ◽  
Potato Sprout ◽  
Good Linear Relationship ◽  
Sprout Length ◽  
The Relationship ◽  
Sprout Growth

SummaryTotal sprout length and the length of the longest sprout were shown to be the most universally useful measurements to estimate sprout development in batches of potato tubers. A good estimate of sprout weight was also derived from measurements of total sprout length. There was a good linear relationship between total sprout length and initial tuber weight but the relationship varied considerably with the time of measurement and the temperature of storage.It is suggested that if sprout measurements are to be used to predict the field performance of a batch of tubers the changing pattern of sprout vigour with time needs to be more closely understood.

The relationship between yield and sprout length after storage in diploid and tetraploid potatoes

1978 ◽  
Vol 91 (1) ◽  
pp. 253-254 ◽  
Author(s):  
M. J. De Maine
Keyword(s):  
Tuber Weight ◽  
Positive Correlation ◽  
Sprout Length ◽  
The Relationship ◽  
Sprout Growth

SummaryAn observed positive correlation between tuber sprout growth in store and yield and tuber weight was due to the association of short sprouts with small tubers (less than 75 g). Sprout growth in larger tubers appears to be unaffected by tuber weight.

Research on the Physical Characteristics in Maize Deep-Bed Drying Process

2011 ◽  
Vol 314-316 ◽  
pp. 1478-1482
Author(s):  
Ye Zhang ◽  
Chang You Li ◽  
Zhi Wei Mai ◽  
Feng Ying Xu ◽  
Li Xu
Keyword(s):  
Linear Relationship ◽  
Pressure Loss ◽  
Static Pressure ◽  
Physical Characteristics ◽  
Test Stand ◽  
Thermal Engineering ◽  
Drying Process ◽  
Good Linear ◽  
Good Linear Relationship ◽  
The Relationship

In order to investigate the static pressure loss of the maize deep-bed drying related to the ratio of air flux to grain mass, the experiments based on the theory of thermal engineering and deep-bed drying were engaged in. These experiments conducted on the ventilation test stand indicate the relationship between static pressure loss, depth of the bed, ventilative dimensions and the ratio of air flux to grain mass. The investigation results that during the drying, the static pressure loss increases related to the increased ratio of air flux to grain mass with the constant bed depth. The good linear relationship between the static pressure loss and ventilative dimensions was indicated. With the control of the constant ventilative dimensions, the static pressure loss increases related to the decreased ratio of air flux to grain mass and it will dramatically increased when the ratio of air flux to grain mass is small enough. To reduce the static pressure loss, enlarging the ventilative dimensions, reducing the thickness of the drying layer and reducing the speed of the wind will be the proper methods.

Determination of Chitosan Oligosaccharide Content by Acetylacetone Spectrophotometry Method

2012 ◽  
Vol 503-504 ◽  
pp. 543-547 ◽  
Author(s):  
Ze Ping Xu ◽  
Chuan Lun Yang ◽  
Xin Qing Zhang ◽  
Xiu Zhi Wang ◽  
Bao Sheng Huang
Keyword(s):  
Hydrochloric Acid ◽  
Linear Relationship ◽  
Regression Equation ◽  
Common Method ◽  
Chitosan Oligosaccharide ◽  
Average Recovery ◽  
Good Linear ◽  
Good Linear Relationship

Objective: To establish a common method to detect the content of chitosan oligosaccharide. Methods: Chitosan oligosaccharide was hydrolyzed completely by concentrated hydrochloric acid, and the solution was regulated into neutral with NaOH. Then, determined the absorbance in 525nm, and substituted into the regression equation to determine the results. Results: The results showed there was a good linear relationship when the concentration of chitosan oligosaccharide ranged from 0.02 mg/mL to 0.12 mg/mL, r2 = 0.999. The average recovery of chitosan oligosaccharide samples was 99.25%. Conclusion: The method is sensitive, accurate and simple. It is applied to determine of the content of chitosan oligosaccharide.

Carbon Nanoparticle Spectrophotometric Determination of Glucose

2013 ◽  
Vol 726-731 ◽  
pp. 1453-1456
Author(s):  
Ai Hui Liang ◽  
Jing Peng ◽  
Yuan Li ◽  
Ling Ling Ye ◽  
Gui Qing Wen
Keyword(s):  
Linear Relationship ◽  
Spectrophotometric Determination ◽  
Glucose Concentration ◽  
Carbon Nanoparticles ◽  
Absorption Peak ◽  
Carbon Nanoparticle ◽  
Good Linear ◽  
Good Linear Relationship ◽  
Glucose Injection

In the presence of NaOH, glucose hydrolyze and polymerize to generate yellow carbon nanoparticles that had an absorption peak at 336 nm. Under the selected conditions, result showed the concentration of glucose have a good linear relationship between absorbance value and glucose concentration in the range of 0.0005-0.060 mol/L. This method has been used for the assay of glucose injection sample, with simplicity, rapidity, and accuracy.

scholarly journals Evaluation of Yogurt Quality during Storage by Fluorescence Spectroscopy

2019 ◽  
Vol 9 (1) ◽  
pp. 131
Author(s):  
Haifeng Sun ◽  
Ling Wang ◽  
Hao Zhang ◽  
Ang Wu ◽  
Juanhua Zhu ◽  
...  
Keyword(s):  
Linear Relationship ◽  
Fluorescence Spectra ◽  
Ph Value ◽  
Average Rate ◽  
Ambient Air ◽  
Rate Of Change ◽  
Fluorescence Signal ◽  
Good Linear ◽  
Good Linear Relationship

The physico-chemical parameters including pH and viscosity, and the fluorescence signal induced by fluorescent compounds presenting in yogurts such as riboflavin and porphyrin were measured during one week’s storage at room temperature when five brands of yogurt samples were exposed to ambient air. The fluorescence spectra of yogurt showed four evident emission peaks, 525 nm, 633 nm, 661 nm, and 672 nm. To quantitatively investigate the quality of yogurt during deteriorating, a calculating method of the average rate of change (ARC) was proposed to study the relative change of fluorescence intensity in the spectral range of 600 to 750 nm associated with porphyrin and chlorin compounds. During the storage, the time evolution of two ARC, pH value, and viscosity were regular. Moreover, the ARC showed a good linear relationship with pH value and viscosity of yogurt. Further, multiple linear regression (MLR) models using two ARC as independent variables were developed to verify the dependence of fluorescence signal with pH value and viscosity, which showed a good linear relationship with an R-square of more than 85% for each class of yogurt. The results demonstrate that fluorescence spectra have a great potential to predict the quality of yogurt.

Intact Loess Structural Loss Parameter in Humidification Process

2013 ◽  
Vol 655-657 ◽  
pp. 1868-1873
Author(s):  
Xi Chen ◽  
Bin Bin Chen
Keyword(s):  
Linear Relationship ◽  
Water Content ◽  
Good Linear ◽  
Good Linear Relationship ◽  
Loss Parameter ◽  
Structural Loss ◽  
Set Up ◽  
Intact Loess

Based on soil structural view, the mechanism of loess structure is analyzed in humidification process. The concept of the loess structure loss is proposed.And quantitatively parameter described the loess structure loss is set up, that is structure loss parameter. And then the influence laws of humidification and loading on loess structure loss are discussed. The results show that structure loss parameters is increasing with the increase of the humidification water content. The moistening collapsibility has a good linear relationship with loess structure loss parameters.

A sensitive Pb2+ testing method based on aptamer-functionalized peroxidase-like 3D-flower MoS2 microspheres

2017 ◽  
Vol 41 (15) ◽  
pp. 7052-7060 ◽  
Author(s):  
Xiu Wang ◽  
Chunlei Yang ◽  
Mei Yan ◽  
Jinghua Yu
Keyword(s):  
Linear Relationship ◽  
Current Response ◽  
Good Linear ◽  
Testing Method ◽  
Good Linear Relationship ◽  
Target Molecules

We, herein, report a sensitive EC bioanalytical protocol for the detection of Pb2+ based on AuPt–MCNTs as a platform and 3D-flower MoS2–GR hybrids as signal probes. This method showed a good linear relationship between the current response and the Pb2+ concentration. It can be widely utilized for the identification of other target molecules.

The effects of the date of defoliation of the seed potato crop and the storage temperature of the seed on subsequent growth: 1. Sprout growth

1978 ◽  
Vol 91 (3) ◽  
pp. 737-745 ◽  
Author(s):  
D. C. E. Wurr
Keyword(s):  
Linear Relationship ◽  
Seed Potato ◽  
Storage Temperature ◽  
Seed Tuber ◽  
Potato Crop ◽  
Subsequent Growth ◽  
Variable Effect ◽  
Seed Crop ◽  
Sprout Length ◽  
Sprout Growth

SummarySeven experiments carried out over 3 years investigated the effects of the date of defoliation of the seed crop and the storage temperature of the seed on subsequent sprout growth.The time of defoliation of the seed crop had a small, variable effect on the number of sprouts but with all varieties in every year, early defoliation gave the greatest total sprout length. The effect of later defoliation on sprout length varied according to the variety and the year. Most of the variation in total sprout length per tuber appeared to be attributable to differences in the date of dormancy break of the seed tuber.Storage throughout the winter at 15 °C gave fewer sprouts but a greater total sprout length per tuber than storage at 9 °C. A linear relationship between total sprout length per tuber and accumulated day degrees above 0 °C from dormancy break accounted for most of the variation in sprout length occurring in Désirée, Pentland Crown and Majestic as a result of storage at 9 °C and 15 °C for different periods of time.

scholarly journals Application of the log k pair linearity rule and proportionality rule to the RPP mobile phase scales estimation on cyano-silica column

2001 ◽  
Vol 66 (3) ◽  
pp. 173-178
Author(s):  
Tomislav Janjic ◽  
Gordana Vuckovic ◽  
Milenko Celap
Keyword(s):  
Linear Relationship ◽  
Satisfactory Agreement ◽  
Linear Dependence ◽  
Mobile Phase ◽  
Silica Column ◽  
Good Linear ◽  
Good Linear Relationship ◽  
Solvent Strength ◽  
Proportionality Rule

On the basis of literature-reported log k values, the Log k pair linearity rule and the Proportionality rule were found to be also valid in the case of cyano-silica sorbent, whenmethanol, acetonitrile or propane-2-olwere used as modifiers. The RPPscales, reflecting the solvent strength, are in good linear relationship with the experimentally determined log k values. Furthermore, in the case of methanol and acetonitrile, the linear dependence: log k = f(mol%of modifier) was also established. In the function obtained in a such way, the intercept and the slope exhibit an approximate linear dependence. Finally, in the case of methanol, the experimentally obtained log k values are in a satisfactory agreement with the values calculated by the above equation.

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